Added possibility to check kind of cost to pay for conditional mana use.

Mage.Server.Plugins/Mage.Player.AI/src/main/java/mage/player/ai/ComputerPlayer.java

@@ -1195,7 +1195,7 @@ public class ComputerPlayer extends PlayerImpl implements Player {
         }
         // pay phyrexian life costs
         if (cost instanceof PhyrexianManaCost) {
-            if (cost.pay(null, game, null, playerId, false) || spendAnyMana) {
+            if (cost.pay(null, game, null, playerId, false, null) || spendAnyMana) {
                 return true;
             }
         }

Mage.Server.Plugins/Mage.Player.Human/src/mage/player/human/HumanPlayer.java

@@ -805,7 +805,7 @@ public class HumanPlayer extends PlayerImpl {
                     if (cost instanceof PhyrexianManaCost) {
                         PhyrexianManaCost ph = (PhyrexianManaCost) cost;
                         if (ph.canPay(null, null, playerId, game)) {
-                            ((PhyrexianManaCost) cost).pay(null, game, null, playerId, false);
+                            ((PhyrexianManaCost) cost).pay(null, game, null, playerId, false, null);
                         }
                         break;
                     }

Mage.Sets/src/mage/sets/alarareborn/VectisDominator.java

@@ -105,7 +105,7 @@ class VectisDominatorEffect extends OneShotEffect {
                 cost.clearPaid();
                 final StringBuilder sb = new StringBuilder("Pay 2 life? (Otherwise ").append(targetCreature.getName()).append(" will be tapped)");
                 if (player.chooseUse(Outcome.Benefit, sb.toString(), source, game)) {
-                    cost.pay(source, game, targetCreature.getControllerId(), targetCreature.getControllerId(), true);
+                    cost.pay(source, game, targetCreature.getControllerId(), targetCreature.getControllerId(), true, null);
                 }
                 if (!cost.isPaid()) {
                     return targetCreature.tap(game);

Mage.Sets/src/mage/sets/alliances/ElvishSpiritGuide.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.MageInt;
 import mage.Mana;
 import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.common.BasicManaEffect;
 import mage.abilities.mana.SimpleManaAbility;
@@ -83,7 +84,7 @@ class ExileSourceFromHandCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Card card = game.getCard(sourceId);
         Player player = game.getPlayer(controllerId);
         if (player != null && player.getHand().contains(sourceId) && card != null) {

Mage.Sets/src/mage/sets/alliances/PhyrexianDevourer.java

@@ -160,7 +160,7 @@ class ExileTopCardLibraryCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
         if (controller != null) {
             card = controller.getLibrary().getFromTop(game);

Mage.Sets/src/mage/sets/avacynrestored/CavernOfSouls.java

@@ -36,6 +36,7 @@ import mage.Mana;
 import mage.abilities.Ability;
 import mage.abilities.common.AsEntersBattlefieldAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.effects.ContinuousRuleModifyingEffectImpl;
 import mage.abilities.effects.common.ChooseCreatureTypeEffect;
@@ -136,7 +137,7 @@ class CavernOfSoulsManaCondition extends CreatureCastManaCondition {
     }
 
     @Override
-    public boolean apply(Game game, Ability source, UUID manaProducer) {
+    public boolean apply(Game game, Ability source, UUID originalId, Cost costToPay) {
         // check: ... to cast a creature spell
         if (super.apply(game, source)) {
             // check: ... of the chosen type

Mage.Sets/src/mage/sets/battleforzendikar/GrovetenderDruids.java

@@ -95,7 +95,7 @@ class GrovetenderDruidsEffect extends OneShotEffect {
         if(player != null) {
             if(player.chooseUse(Outcome.BoostCreature, "Do you want to to pay {1}?", source, game)) {
                 Cost cost = new ManaCostsImpl("{1}");
-                if(cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if(cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     new CreateTokenEffect(new GrovetenderDruidsPlantToken()).apply(game, source);
                 }
                 return true;

Mage.Sets/src/mage/sets/betrayersofkamigawa/BlindingPowder.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.mana.GenericManaCost;
 import mage.abilities.effects.Effect;
@@ -92,7 +93,7 @@ class BlindingPowderUnattachCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(sourceId);
         if (permanent != null) {
             for (UUID attachmentId : permanent.getAttachments()) {

Mage.Sets/src/mage/sets/betrayersofkamigawa/OgreMarauder.java

@@ -100,7 +100,7 @@ class OgreMarauderEffect extends OneShotEffect {
             Cost cost = new SacrificeTargetCost(new TargetControlledCreaturePermanent());
             if (cost.canPay(source, source.getSourceId(), defendingPlayerId, game) &&
                     defender.chooseUse(Outcome.LoseAbility, "Sacrifice a creature to prevent that " + sourceObject.getLogName() + " can't be blocked?", source, game)) {
-                if (!cost.pay(source, game, source.getSourceId(), defendingPlayerId, false)) {
+                if (!cost.pay(source, game, source.getSourceId(), defendingPlayerId, false, null)) {
                     // cost was not payed - so source can't be blocked
                     ContinuousEffect effect = new CantBeBlockedSourceEffect(Duration.EndOfTurn);
                     game.addEffect(effect, source);

Mage.Sets/src/mage/sets/betrayersofkamigawa/Shuriken.java

@@ -138,7 +138,7 @@ class ShurikenUnattachCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(sourceId);
         if (permanent != null) {
             for (UUID attachmentId :permanent.getAttachments()) {

Mage.Sets/src/mage/sets/bornofthegods/FloodtideSerpent.java

@@ -109,7 +109,7 @@ class FloodtideSerpentReplacementEffect extends ReplacementEffectImpl {
             ReturnToHandChosenControlledPermanentCost attackCost = new ReturnToHandChosenControlledPermanentCost(new TargetControlledPermanent(filter));
             if (attackCost.canPay(source, source.getSourceId(), event.getPlayerId(), game)
                     && player.chooseUse(Outcome.Neutral, "Return an enchantment you control to hand to attack?", source, game)) {
-                if (attackCost.pay(source, game, source.getSourceId(), event.getPlayerId(), true)) {
+                if (attackCost.pay(source, game, source.getSourceId(), event.getPlayerId(), true, null)) {
                     return false;
                 }
             }

Mage.Sets/src/mage/sets/bornofthegods/HeroOfLeinaTower.java

@@ -98,7 +98,7 @@ class HeroOfLeinaTowerEffect extends OneShotEffect {
         if (you != null && you.chooseUse(Outcome.BoostCreature, "Do you want to to pay {X}?", source, game)) {
             int costX = you.announceXMana(0, Integer.MAX_VALUE, "Announce the value for {X}", game, source);
             cost.add(new GenericManaCost(costX));
-            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                 Permanent sourcePermanent = game.getPermanent(source.getSourceId());
                 if (sourcePermanent != null) {
                     return new AddCountersSourceEffect(CounterType.P1P1.createInstance(costX), true).apply(game, source);

Mage.Sets/src/mage/sets/bornofthegods/MogisGodOfSlaughter.java

@@ -130,7 +130,7 @@ class DoUnlessTargetPaysCost extends OneShotEffect {
             message = CardUtil.replaceSourceName(message, mageObject.getLogName());
             cost.clearPaid();
             if (cost.canPay(source, source.getSourceId(), player.getId(), game) && player.chooseUse(executingEffect.getOutcome(), message, source, game)) {
-                cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             }
             if (!cost.isPaid()) {
                 executingEffect.setTargetPointer(this.targetPointer);

Mage.Sets/src/mage/sets/championsofkamigawa/CutTheTethers.java

@@ -98,7 +98,7 @@ class CutTheTethersEffect extends OneShotEffect {
                 boolean paid = false;
                 if (player.chooseUse(outcome, new StringBuilder("Pay {3} to keep ").append(creature.getName()).append(" on the battlefield?").toString(), source, game)) {
                     Cost cost = new GenericManaCost(3);
-                    if (!cost.pay(source, game, source.getSourceId(), creature.getControllerId(), false)) {
+                    if (!cost.pay(source, game, source.getSourceId(), creature.getControllerId(), false, null)) {
                         paid = true;
                     }
                     if (!paid) {

Mage.Sets/src/mage/sets/championsofkamigawa/Hankyu.java

@@ -36,6 +36,7 @@ import mage.constants.Zone;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.GenericManaCost;
@@ -184,7 +185,7 @@ class HankyuCountersSourceCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent equipment = game.getPermanent(this.effectGivingEquipmentId);
                 if (equipment != null ) {
                     this.removedCounters = equipment.getCounters().getCount(CounterType.AIM);

Mage.Sets/src/mage/sets/championsofkamigawa/HisokaMinamoSensei.java

@@ -36,6 +36,7 @@ import mage.constants.Rarity;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.mana.ManaCostsImpl;
 import mage.abilities.effects.OneShotEffect;
@@ -98,7 +99,7 @@ class HisokaMinamoSenseiDiscardTargetCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         if (targets.choose(Outcome.Discard, controllerId, sourceId, game)) {
             Player player = game.getPlayer(controllerId);
             for (UUID targetId: targets.get(0).getTargets()) {

Mage.Sets/src/mage/sets/championsofkamigawa/UntaidakeTheCloudKeeper.java

@@ -35,6 +35,7 @@ import mage.abilities.Ability;
 import mage.abilities.SpellAbility;
 import mage.abilities.common.EntersBattlefieldTappedAbility;
 import mage.abilities.condition.Condition;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.common.PayLifeCost;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.mana.ConditionalColorlessManaAbility;
@@ -62,7 +63,7 @@ public class UntaidakeTheCloudKeeper extends CardImpl {
         Ability ability = new ConditionalColorlessManaAbility(new TapSourceCost(), 2, new LegendarySpellManaBuilder());
         ability.addCost(new PayLifeCost(2));
         this.addAbility(ability);
-        
+
     }
 
     public UntaidakeTheCloudKeeper(final UntaidakeTheCloudKeeper card) {
@@ -76,6 +77,7 @@ public class UntaidakeTheCloudKeeper extends CardImpl {
 }
 
 class LegendarySpellManaBuilder extends ConditionalManaBuilder {
+
     @Override
     public ConditionalMana build(Object... options) {
         return new LegendaryCastConditionalMana(this.mana);
@@ -97,6 +99,7 @@ class LegendaryCastConditionalMana extends ConditionalMana {
 }
 
 class LegendaryCastManaCondition extends ManaCondition implements Condition {
+
     @Override
     public boolean apply(Game game, Ability source) {
         if (source instanceof SpellAbility) {
@@ -109,7 +112,7 @@ class LegendaryCastManaCondition extends ManaCondition implements Condition {
     }
 
     @Override
-    public boolean apply(Game game, Ability source, UUID originalId) {
+    public boolean apply(Game game, Ability source, UUID originalId, Cost costsToPay) {
         return apply(game, source);
     }
-}
+}

Mage.Sets/src/mage/sets/coldsnap/BraidOfFire.java

@@ -30,6 +30,7 @@ package mage.sets.coldsnap;
 import java.util.UUID;
 import mage.Mana;
 import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.keyword.CumulativeUpkeepAbility;
 import mage.cards.CardImpl;
@@ -73,7 +74,7 @@ class BraidOfFireCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Player player = game.getPlayer(controllerId);
         player.getManaPool().addMana(Mana.RedMana(1), game, ability);
         paid = true;

Mage.Sets/src/mage/sets/coldsnap/JotunGrunt.java

@@ -30,6 +30,7 @@ package mage.sets.coldsnap;
 import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.keyword.CumulativeUpkeepAbility;
 import mage.cards.Card;
@@ -84,7 +85,7 @@ class JotunGruntCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
         if (controller != null) {
             if (targets.choose(Outcome.Removal, controllerId, sourceId, game)) {

Mage.Sets/src/mage/sets/coldsnap/ShelteringAncient.java

@@ -30,6 +30,7 @@ package mage.sets.coldsnap;
 import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.keyword.CumulativeUpkeepAbility;
 import mage.abilities.keyword.TrampleAbility;
@@ -89,7 +90,7 @@ class ShelteringAncientCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
         if (controller != null) {
             Target target = new TargetCreaturePermanent(1, 1, filter, true);

Mage.Sets/src/mage/sets/commander/AllianceOfArms.java

@@ -121,7 +121,7 @@ class AllianceOfArmsEffect extends OneShotEffect {
             xValue = player.announceXMana(0, Integer.MAX_VALUE, "How much mana will you pay?", game, source);
             if (xValue > 0) {
                 Cost cost = new GenericManaCost(xValue);
-                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             } else {
                 payed = true;
             }

Mage.Sets/src/mage/sets/commander/ChorusOfTheConclave.java

@@ -147,7 +147,7 @@ class ChorusOfTheConclaveReplacementEffect extends ReplacementEffectImpl {
             xValue = player.announceXMana(0, Integer.MAX_VALUE, "How much mana will you pay?", game, source);
             if (xValue > 0) {
                 Cost cost = new GenericManaCost(xValue);
-                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             } else {
                 payed = true;
             }

Mage.Sets/src/mage/sets/commander/CollectiveVoyage.java

@@ -130,7 +130,7 @@ class CollectiveVoyageEffect extends OneShotEffect {
             xValue = player.announceXMana(0, Integer.MAX_VALUE, "How much mana will you pay?", game, source);
             if (xValue > 0) {
                 Cost cost = new GenericManaCost(xValue);
-                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             } else {
                 payed = true;
             }

Mage.Sets/src/mage/sets/commander/ManaChargedDragon.java

@@ -100,7 +100,7 @@ class ManaChargedDragonEffect extends OneShotEffect {
             xValue = player.announceXMana(0, Integer.MAX_VALUE, "How much mana will you pay?", game, source);
             if (xValue > 0) {
                 Cost cost = new GenericManaCost(xValue);
-                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             } else {
                 payed = true;
             }

Mage.Sets/src/mage/sets/commander/MindsAglow.java

@@ -119,7 +119,7 @@ class MindsAglowEffect extends OneShotEffect {
             xValue = player.announceXMana(0, Integer.MAX_VALUE, "How much mana will you pay?", game, source);
             if (xValue > 0) {
                 Cost cost = new GenericManaCost(xValue);
-                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             } else {
                 payed = true;
             }

Mage.Sets/src/mage/sets/commander/SharedTrauma.java

@@ -120,7 +120,7 @@ class SharedTraumaEffect extends OneShotEffect {
             xValue = player.announceXMana(0, Integer.MAX_VALUE, "How much mana will you pay?", game, source);
             if (xValue > 0) {
                 Cost cost = new GenericManaCost(xValue);
-                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false);
+                payed = cost.pay(source, game, source.getSourceId(), player.getId(), false, null);
             } else {
                 payed = true;
             }

Mage.Sets/src/mage/sets/commander/VishKalBloodArbiter.java

@@ -120,7 +120,7 @@ class VishKalBloodArbiterCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(sourceId);
         if (permanent != null) {
             this.amount = permanent.getCounters().getCount(name);

Mage.Sets/src/mage/sets/commander2013/MarathWillOfTheWild.java

@@ -57,6 +57,7 @@ import mage.target.common.TargetCreatureOrPlayer;
 import mage.target.common.TargetCreaturePermanent;
 
 import java.util.UUID;
+import mage.abilities.costs.Cost;
 
 /**
  *
@@ -200,7 +201,7 @@ class MarathWillOfTheWildRemoveCountersCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         int amount = new ManacostVariableValue().calculate(game, ability, null);
         Permanent permanent = game.getPermanent(sourceId);
         if (permanent != null && permanent.getCounters().getCount(CounterType.P1P1) >= amount) {

Mage.Sets/src/mage/sets/conspiracy/Victimize.java

@@ -90,7 +90,7 @@ class VictimizeEffect extends OneShotEffect {
         Player controller = game.getPlayer(source.getControllerId());
         if (controller != null) {
             SacrificeTargetCost cost = new SacrificeTargetCost(new TargetControlledCreaturePermanent(new FilterControlledCreaturePermanent("a creature")));
-            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                 controller.moveCards(new CardsImpl(getTargetPointer().getTargets(game, source)).getCards(game),
                         Zone.BATTLEFIELD, source, game, true, false, false, null);
             }

Mage.Sets/src/mage/sets/darkascension/JarOfEyeballs.java

@@ -145,7 +145,7 @@ class JarOfEyeballsCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(ability.getSourceId());
         if (permanent != null) {
             this.removedCounters = permanent.getCounters().getCount(CounterType.EYEBALL);

Mage.Sets/src/mage/sets/darksteel/LeoninBola.java

@@ -33,6 +33,7 @@ import mage.constants.*;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.GenericManaCost;
@@ -90,7 +91,7 @@ class UnattachCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(sourceId);
         if (permanent != null) {
                 Permanent attachment = game.getPermanent(attachmentid);

Mage.Sets/src/mage/sets/darksteel/SurestrikeTrident.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.GenericManaCost;
@@ -104,7 +105,7 @@ class SurestrikeTridentUnattachCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(sourceId);
         if (permanent != null) {
             for (UUID attachmentId : permanent.getAttachments()) {

Mage.Sets/src/mage/sets/dragonsoftarkir/HavenOfTheSpiritDragon.java

@@ -33,6 +33,7 @@ import mage.MageObject;
 import mage.Mana;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.common.SacrificeSourceCost;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
@@ -120,7 +121,7 @@ class HavenOfTheSpiritConditionalMana extends ConditionalMana {
 class HavenOfTheSpiritManaCondition extends CreatureCastManaCondition {
 
     @Override
-    public boolean apply(Game game, Ability source, UUID manaProducer) {
+    public boolean apply(Game game, Ability source, UUID manaProducer, Cost costToPay) {
         if (super.apply(game, source)) {
             MageObject object = game.getObject(source.getSourceId());
             if (object.hasSubtype("Dragon")

Mage.Sets/src/mage/sets/dragonsoftarkir/MysticMeditation.java

@@ -95,7 +95,7 @@ class MysticMeditationEffect extends OneShotEffect {
                 && controller.chooseUse(Outcome.Discard, "Do you want to discard a creature card?  If you don't, you must discard 2 cards", source, game)) {
             Cost cost = new DiscardTargetCost(new TargetCardInHand(filter));
             if (cost.canPay(source, source.getSourceId(), controller.getId(), game)) {
-                if (cost.pay(source, game, source.getSourceId(), controller.getId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), controller.getId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/eventide/HatchetBully.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
@@ -101,7 +102,7 @@ class HatchetBullyCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(ability.getTargets().get(1).getFirstTarget());
         if (permanent != null) {
             permanent.addCounters(CounterType.M1M1.createInstance(), game);

Mage.Sets/src/mage/sets/eventide/ImpelledGiant.java

@@ -34,6 +34,7 @@ import mage.ObjectColor;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.Effect;
 import mage.abilities.effects.OneShotEffect;
@@ -111,7 +112,7 @@ class ImpelledGiantCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         if (target.choose(Outcome.Tap, controllerId, sourceId, game)) {
             for (UUID targetId: (List<UUID>)target.getTargets()) {
                 Permanent permanent = game.getPermanent(targetId);

Mage.Sets/src/mage/sets/eventide/RiseOfTheHobgoblins.java

@@ -119,7 +119,7 @@ class RiseOfTheHobgoblinsEffect extends OneShotEffect {
         if (you != null && you.chooseUse(Outcome.Neutral, "Do you want to to pay {X}?", source, game)) {
             int costX = you.announceXMana(0, Integer.MAX_VALUE, "Announce the value for {X}", game, source);
             cost.add(new GenericManaCost(costX));
-            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                 Token token = new GoblinSoldierToken();
                 return token.putOntoBattlefield(costX, game, source.getSourceId(), source.getControllerId());
             }

Mage.Sets/src/mage/sets/exodus/ErraticPortal.java

@@ -103,7 +103,7 @@ class ErraticPortalEffect extends OneShotEffect {
                 if (player != null) {
                     cost.clearPaid();
                     if (player.chooseUse(Outcome.Benefit, "Pay {1}? (Otherwise " + targetCreature.getLogName() +" will be returned to its owner's hand)", source, game)) {
-                        cost.pay(source, game, targetCreature.getControllerId(), targetCreature.getControllerId(), false);
+                        cost.pay(source, game, targetCreature.getControllerId(), targetCreature.getControllerId(), false, null);
                     }
                     if (!cost.isPaid()) {
                         controller.moveCards(targetCreature, Zone.BATTLEFIELD, Zone.HAND, source, game);

Mage.Sets/src/mage/sets/fallenempires/TidalInfluence.java

@@ -35,6 +35,7 @@ import mage.abilities.common.BeginningOfUpkeepTriggeredAbility;
 import mage.abilities.common.EntersBattlefieldAbility;
 import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.condition.common.SourceHasCounterCondition;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.decorator.ConditionalContinuousEffect;
 import mage.abilities.dynamicvalue.common.CountersCount;
@@ -127,7 +128,7 @@ class TidalInfluenceCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         this.paid = true;
         return paid;
     }

Mage.Sets/src/mage/sets/fifthdawn/DisruptionAura.java

@@ -112,7 +112,7 @@ class DisruptionAuraEffect extends OneShotEffect {
             Cost cost = permanent.getManaCost().copy();
             if (player.chooseUse(Outcome.Benefit, message, source, game)) {
                 cost.clearPaid();
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/fifthdawn/PlungeIntoDarkness.java

@@ -148,7 +148,7 @@ class PlungeIntoDarknessSearchEffect extends OneShotEffect {
         if (player != null) {
             VariableCost cost = new PayVariableLifeCost();
             int xValue = cost.announceXValue(source, game);
-            cost.getFixedCostsFromAnnouncedValue(xValue).pay(source, game, source.getSourceId(), source.getControllerId(), false);
+            cost.getFixedCostsFromAnnouncedValue(xValue).pay(source, game, source.getSourceId(), source.getControllerId(), false, null);
             
             Cards cards = new CardsImpl();
             int count = Math.min(player.getLibrary().size(), xValue);

Mage.Sets/src/mage/sets/fifthdawn/PossessedPortal.java

@@ -130,11 +130,11 @@ class PossessedPortalEffect extends OneShotEffect {
             Cost discardCost = new DiscardCardCost();
             if (discardCost.canPay(source, source.getSourceId(), playerId, game)
                     && player.chooseUse(Outcome.Discard, "Discard a card? (Otherwise sacrifice a permanent)", source, game)) {
-                discardCost.pay(source, game, source.getSourceId(), playerId, true);
+                discardCost.pay(source, game, source.getSourceId(), playerId, true, null);
             }
             else {
                 Cost sacrificeCost = new SacrificeTargetCost(new TargetControlledPermanent());
-                sacrificeCost.pay(source, game, source.getSourceId(), playerId, true);
+                sacrificeCost.pay(source, game, source.getSourceId(), playerId, true, null);
             }
         }
         return true;

Mage.Sets/src/mage/sets/fourthedition/ForceOfNature.java

@@ -97,7 +97,7 @@ class ForceOfNatureEffect extends OneShotEffect {
             Cost cost = new ManaCostsImpl("{G}{G}{G}{G}");
             String message = "Would you like to pay {G}{G}{G}{G} to prevent taking 8 damage from {this}?";
             if (!(controller.chooseUse(Outcome.Benefit, message, source, game)
-                    && cost.pay(source, game, source.getSourceId(), controller.getId(), false))) {
+                    && cost.pay(source, game, source.getSourceId(), controller.getId(), false, null))) {
                 controller.damage(8, source.getSourceId(), game, false, true);
             }
             return true;

Mage.Sets/src/mage/sets/futuresight/NimbusMaze.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.Mana;
 import mage.abilities.Ability;
 import mage.abilities.condition.common.PermanentsOnTheBattlefieldCondition;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.effects.common.BasicManaEffect;
@@ -114,7 +115,7 @@ class FilterPermanentCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         this.paid = true;
         return paid;
     }

Mage.Sets/src/mage/sets/guildpact/LeylineOfLightning.java

@@ -92,7 +92,7 @@ class LeylineOfLightningEffect extends DamageTargetEffect {
         Player player = game.getPlayer(source.getControllerId());
         if (player != null) {
             Cost cost = new GenericManaCost(1);
-            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                 super.apply(game, source);
             }
             return true;

Mage.Sets/src/mage/sets/iceage/MysticRemora.java

@@ -145,7 +145,7 @@ class MysticRemoraTriggeredAbility extends TriggeredAbilityImpl {
         if (controller != null && opponent != null && sourceObject != null) {
             Cost cost = new GenericManaCost(4);
             String message = "Would you like to pay {4} to prevent the opponent to draw a card?";
-            if (!(opponent.chooseUse(Outcome.Benefit, message, source, game) && cost.pay(source, game, source.getSourceId(), opponent.getId(), false))) {
+            if (!(opponent.chooseUse(Outcome.Benefit, message, source, game) && cost.pay(source, game, source.getSourceId(), opponent.getId(), false, null))) {
                 if(controller.chooseUse(Outcome.DrawCard, "Draw a card (" + sourceObject.getLogName() +")", source, game)) {
                     controller.drawCards(1, game);
                 }

Mage.Sets/src/mage/sets/iceage/Seizures.java

@@ -109,7 +109,7 @@ class SeizuresEffect extends OneShotEffect {
             if(cost.canPay(source, source.getSourceId(), player.getId(), game)
                 && player.chooseUse(Outcome.Benefit, "Pay " + cost.getText() + " to avoid damage?", source, game)) {
                 cost.clearPaid();
-                if(cost.pay(source, game, source.getSourceId(), player.getId(), false)) {
+                if(cost.pay(source, game, source.getSourceId(), player.getId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/innistrad/BackFromTheBrink.java

@@ -30,6 +30,7 @@ package mage.sets.innistrad;
 import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.common.ActivateAsSorceryActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.Effect;
 import mage.abilities.effects.common.PutTokenOntoBattlefieldCopyTargetEffect;
@@ -97,7 +98,7 @@ class BackFromTheBrinkCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         if (targets.choose(Outcome.Exile, controllerId, sourceId, game)) {
             Player controller = game.getPlayer(controllerId);
             if (controller != null) {

Mage.Sets/src/mage/sets/innistrad/FrightfulDelusion.java

@@ -95,7 +95,7 @@ class FrightfulDelusionEffect extends OneShotEffect {
                 game.getPlayer(spell.getControllerId()).discard(
                         1, false, source, game);
                 if (!cost.pay(source, game, spell.getControllerId(),
-                        spell.getControllerId(), false)) {
+                        spell.getControllerId(), false, null)) {
                     return game.getStack().counter(source.getFirstTarget(),
                             source.getSourceId(), game);
                 }

Mage.Sets/src/mage/sets/innistrad/ScreechingBat.java

@@ -133,7 +133,7 @@ class ScreechingBatTransformSourceEffect extends OneShotEffect {
         Permanent permanent = game.getPermanent(source.getSourceId());
         if (permanent != null) {
             Cost cost = new ManaCostsImpl("{2}{B}{B}");
-            if (cost.pay(source, game, permanent.getControllerId(), permanent.getControllerId(), false)) {
+            if (cost.pay(source, game, permanent.getControllerId(), permanent.getControllerId(), false, null)) {
                 if (permanent.canTransform()) {
                     permanent.setTransformed(!permanent.isTransformed());
                 }

Mage.Sets/src/mage/sets/journeyintonyx/AthreosGodOfPassage.java

@@ -131,7 +131,7 @@ class AthreosGodOfPassageReturnEffect extends OneShotEffect {
                     Cost cost = new PayLifeCost(3);
                     if (cost.canPay(source, source.getSourceId(), opponent.getId(), game)
                             && opponent.chooseUse(outcome, new StringBuilder("Pay 3 live to prevent that ").append(creature.getLogName()).append(" returns to ").append(controller.getLogName()).append("'s hand?").toString(), source, game)) {
-                        if (cost.pay(source, game, source.getSourceId(), opponent.getId(), false)) {
+                        if (cost.pay(source, game, source.getSourceId(), opponent.getId(), false, null)) {
                             paid = true;
                         }
                     }

Mage.Sets/src/mage/sets/journeyintonyx/DiscipleOfDeceit.java

@@ -105,7 +105,7 @@ class DiscipleOfDeceitEffect extends OneShotEffect {
             String message = "Discard a nonland card to search your library?";
             if (cost.canPay(source, source.getSourceId(), source.getControllerId(), game) 
                     && player.chooseUse(Outcome.Detriment, message, source, game)) {
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     Card card = game.getCard(cost.getTargets().getFirstTarget());
                     if (card == null) {
                         return false;

Mage.Sets/src/mage/sets/journeyintonyx/SageOfHours.java

@@ -101,7 +101,7 @@ class SageOfHoursCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(ability.getSourceId());
         if (permanent != null) {
             this.removedCounters = permanent.getCounters().getCount(CounterType.P1P1);

Mage.Sets/src/mage/sets/judgment/WormfangDrake.java

@@ -33,6 +33,7 @@ import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.common.LeavesBattlefieldTriggeredAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.common.ReturnFromExileForSourceEffect;
 import mage.abilities.effects.common.SacrificeSourceUnlessPaysEffect;
@@ -103,7 +104,7 @@ class WormfangDrakeExileCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
         MageObject sourceObject = ability.getSourceObject(game);
         if (controller != null && sourceObject != null) {

Mage.Sets/src/mage/sets/legends/ChainLightning.java

@@ -105,7 +105,7 @@ class ChainLightningEffect extends OneShotEffect {
             if (affectedPlayer != null) {
                 if (affectedPlayer.chooseUse(Outcome.Copy, "Pay {R}{R} to copy the spell?", source, game)) {
                     Cost cost = new ManaCostsImpl("{R}{R}");
-                    if (cost.pay(source, game, source.getSourceId(), affectedPlayer.getId(), false)) {
+                    if (cost.pay(source, game, source.getSourceId(), affectedPlayer.getId(), false, null)) {
                         Spell spell = game.getStack().getSpell(source.getSourceId());
                         if (spell != null) {
                             Spell copy = spell.copySpell();

Mage.Sets/src/mage/sets/legends/CosmicHorror.java

@@ -100,7 +100,7 @@ class CosmicHorrorEffect extends OneShotEffect {
             }
             if (controller.chooseUse(Outcome.Benefit, sb.toString(), source, game)) {
                 cost.clearPaid();
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/legends/TheTabernacleAtPendrellVale.java

@@ -91,7 +91,7 @@ class DestroySourceUnlessPaysEffect extends OneShotEffect {
         if (player != null && permanent != null) { 
             if (player.chooseUse(Outcome.Benefit, "Pay " + cost.getText()  + "?", source, game)) {
                 cost.clearPaid();
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/limitedalpha/DemonicHordes.java

@@ -111,7 +111,7 @@ class DemonicHordesEffect extends OneShotEffect {
             }
             if (controller.chooseUse(Outcome.Benefit, sb.toString(), source, game)) {
                 cost.clearPaid();
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/lorwyn/BrokenAmbitions.java

@@ -120,7 +120,7 @@ class BrokenAmbitionsEffect extends OneShotEffect {
                     message = costToPay.getText() + " to prevent counter effect?";
                 }
                 costToPay.clearPaid();
-                if (!(controller.chooseUse(Outcome.Benefit, message, source, game) && costToPay.pay(source, game, spell.getSourceId(), spell.getControllerId(), false))) {
+                if (!(controller.chooseUse(Outcome.Benefit, message, source, game) && costToPay.pay(source, game, spell.getSourceId(), spell.getControllerId(), false, null))) {
                     game.getStack().counter(spell.getId(), source.getSourceId(), game);
                 }
                 if (ClashEffect.getInstance().apply(game, source)) {

Mage.Sets/src/mage/sets/lorwyn/RingsOfBrighthearth.java

@@ -131,7 +131,7 @@ class RingsOfBrighthearthEffect extends OneShotEffect {
         ManaCostsImpl cost = new ManaCostsImpl("{2}");
         if (player != null) {
             if (player.chooseUse(Outcome.Benefit, "Pay " + cost.getText() + "? If you do, copy that ability. You may choose new targets for the copy.", source, game)) {
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     Ability ability = (Ability) getValue("stackAbility");
                     Player controller = game.getPlayer(source.getControllerId());
                     Permanent sourcePermanent = game.getPermanent(source.getSourceId());

Mage.Sets/src/mage/sets/lorwyn/SilvergillAdept.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.mana.GenericManaCost;
 import mage.abilities.effects.common.DrawCardSourceControllerEffect;
@@ -96,7 +97,7 @@ class SilvergillAdeptCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
 
         Player player = game.getPlayer(controllerId);
         if (player == null) {

Mage.Sets/src/mage/sets/magic2011/AncientHellkite.java

@@ -36,6 +36,7 @@ import mage.constants.Zone;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.ActivatedAbilityImpl;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.mana.ColoredManaCost;
 import mage.abilities.effects.common.DamageTargetEffect;
@@ -137,7 +138,7 @@ class AncientHellkiteCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         this.paid = true;
         return paid;
     }

Mage.Sets/src/mage/sets/magic2015/IndulgentTormentor.java

@@ -102,14 +102,14 @@ class IndulgentTormentorEffect extends OneShotEffect {
             Cost cost = new SacrificeTargetCost(new TargetControlledCreaturePermanent());
             if (cost.canPay(source, source.getSourceId(), opponent.getId(), game)
                     && opponent.chooseUse(outcome, "Sacrifice a creature to prevent the card draw?", source, game)) {
-                if (cost.pay(source, game, source.getSourceId(), opponent.getId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), opponent.getId(), false, null)) {
                     return true;
                 }
             }
             cost = new PayLifeCost(3);
             if (cost.canPay(source, source.getSourceId(), opponent.getId(), game)
                     && opponent.chooseUse(outcome, "Pay 3 life to prevent the card draw?", source, game)) {
-                if (cost.pay(source, game, source.getSourceId(), opponent.getId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), opponent.getId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/magic2015/NecromancersStockpile.java

@@ -30,6 +30,7 @@ package mage.sets.magic2015;
 import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.mana.ManaCostsImpl;
 import mage.abilities.effects.OneShotEffect;
@@ -92,7 +93,7 @@ class NecromancersStockpileDiscardTargetCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         if (targets.choose(Outcome.Discard, controllerId, sourceId, game)) {
             Player player = game.getPlayer(controllerId);
             for (UUID targetId : targets.get(0).getTargets()) {

Mage.Sets/src/mage/sets/magic2015/SliverHive.java

@@ -29,11 +29,11 @@ package mage.sets.magic2015;
 
 import java.util.UUID;
 import mage.ConditionalMana;
-import mage.MageInt;
 import mage.MageObject;
 import mage.Mana;
 import mage.abilities.Ability;
 import mage.abilities.condition.common.PermanentsOnTheBattlefieldCondition;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.GenericManaCost;
 import mage.abilities.decorator.ConditionalActivatedAbility;
@@ -124,7 +124,7 @@ class SliverHiveConditionalMana extends ConditionalMana {
 class SliverHiveManaCondition extends CreatureCastManaCondition {
 
     @Override
-    public boolean apply(Game game, Ability source, UUID manaProducer) {
+    public boolean apply(Game game, Ability source, UUID manaProducer, Cost costToPay) {
         if (super.apply(game, source)) {
             MageObject object = game.getObject(source.getSourceId());
             if (object.hasSubtype("Sliver")) {

Mage.Sets/src/mage/sets/masterseditionii/ForgottenLore.java

@@ -117,7 +117,7 @@ class ForgottenLoreEffect extends OneShotEffect {
                 if(!done) {
                     if(cost.canPay(source, source.getSourceId(), you.getId(), game) && you.chooseUse(Outcome.Benefit, "Pay {G} to choose a different card ?", source, game)) {
                         cost.clearPaid();
-                        if(!cost.pay(source, game, source.getSourceId(), you.getId(), false)) {
+                        if(!cost.pay(source, game, source.getSourceId(), you.getId(), false, null)) {
                             done = true;
                         }
                     }

Mage.Sets/src/mage/sets/masterseditioniii/ManaVortex.java

@@ -113,7 +113,7 @@ class CounterSourceEffect extends OneShotEffect {
                 Player controller = game.getPlayer(source.getControllerId());
                 if(controller.chooseUse(Outcome.Detriment, "Sacrifice a land to not counter " + spell.getName() + "?", source, game)){
                     SacrificeTargetCost cost = new SacrificeTargetCost(new TargetControlledPermanent(new FilterControlledLandPermanent()));
-                    if(cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)){
+                    if(cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)){
                         game.informPlayers(controller.getLogName() + " sacrifices a land to not counter " + spell.getName() + ".");
                         return true;
                     }

Mage.Sets/src/mage/sets/masterseditioniii/WanderingMage.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.PayLifeCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
@@ -124,7 +125,7 @@ class WanderingMageCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(ability.getTargets().get(1).getFirstTarget());
         if (permanent != null) {
             permanent.addCounters(CounterType.M1M1.createInstance(), game);

Mage.Sets/src/mage/sets/masterseditioniv/HasranOgress.java

@@ -92,7 +92,7 @@ class HasranOgressEffect extends OneShotEffect {
             Cost cost = new ManaCostsImpl("{2}");
             String message = "Would you like to pay {2} to prevent taking 3 damage from Hasran Ogress?";
             if (!(controller.chooseUse(Outcome.Benefit, message, source, game)
-                    && cost.pay(source, game, source.getSourceId(), controller.getId(), false))) {
+                    && cost.pay(source, game, source.getSourceId(), controller.getId(), false, null))) {
                 controller.damage(3, source.getSourceId(), game, false, true);
             }
             return true;

Mage.Sets/src/mage/sets/masterseditioniv/SoldeviMachinist.java

@@ -34,6 +34,7 @@ import mage.MageObject;
 import mage.Mana;
 import mage.abilities.Ability;
 import mage.abilities.condition.Condition;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.mana.ConditionalColorlessManaAbility;
 import mage.abilities.mana.builder.ConditionalManaBuilder;
@@ -109,7 +110,7 @@ class ArtifactAbilityManaCondition extends ManaCondition implements Condition {
     }
 
     @Override
-    public boolean apply(Game game, Ability source, UUID originalId) {
+    public boolean apply(Game game, Ability source, UUID originalId, Cost costsToPay) {
         return apply(game, source);
     }
 }

Mage.Sets/src/mage/sets/mercadianmasques/HornOfPlenty.java

@@ -94,7 +94,7 @@ class HornOfPlentyEffect extends OneShotEffect {
         if (caster != null) {
             if (caster.chooseUse(Outcome.DrawCard, "Pay {1} to draw a card at the beginning of the next end step?", source, game)) {
                 Cost cost = new ManaCostsImpl("{1}");
-                if (cost.pay(source, game, source.getSourceId(), caster.getId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), caster.getId(), false, null)) {
                     Effect effect = new DrawCardTargetEffect(1);
                     effect.setTargetPointer(new FixedTarget(caster.getId()));
                     return new CreateDelayedTriggeredAbilityEffect(new AtTheBeginOfNextEndStepDelayedTriggeredAbility(effect, TargetController.ANY)).apply(game, source);

Mage.Sets/src/mage/sets/mercadianmasques/LandGrant.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.condition.Condition;
 import mage.abilities.costs.AlternativeCostSourceAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.common.search.SearchLibraryPutInHandEffect;
 import mage.cards.CardImpl;
@@ -105,7 +106,7 @@ class LandGrantReavealCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Player player = game.getPlayer(controllerId);
         if (player != null) {
             player.revealCards("Land Grant", player.getHand(), game);

Mage.Sets/src/mage/sets/mirage/Flash.java

@@ -105,7 +105,7 @@ class FlashEffect extends OneShotEffect {
                 StringBuilder sb = new StringBuilder("Pay ").append(reducedCost.getText()).append("?");
                 if (player.chooseUse(Outcome.Benefit, sb.toString(), source, game)) {
                     reducedCost.clearPaid();
-                    if (reducedCost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                    if (reducedCost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                         return true;
                     }
                 }

Mage.Sets/src/mage/sets/mirage/PhyrexianDreadnought.java

@@ -31,6 +31,7 @@ import java.util.UUID;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.common.SacrificeSourceUnlessPaysEffect;
 import mage.abilities.keyword.TrampleAbility;
@@ -94,7 +95,7 @@ class PhyrexianDreadnoughtSacrificeCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         int sumPower = 0;
         if (targets.choose(Outcome.Sacrifice, controllerId, sourceId, game)) {
             for (UUID targetId: targets.get(0).getTargets()) {

Mage.Sets/src/mage/sets/mirage/VaporousDjinn.java

@@ -98,7 +98,7 @@ class VaporousDjinnEffect extends OneShotEffect {
             Cost cost = new ManaCostsImpl("{U}{U}");
             String message = "Would you like to pay {U}{U} to prevent {this} from phasing out?";
             if (!(controller.chooseUse(Outcome.Benefit, message, source, game)
-                    && cost.pay(source, game, source.getSourceId(), controller.getId(), false))) {
+                    && cost.pay(source, game, source.getSourceId(), controller.getId(), false, null))) {
                 permanent.phaseOut(game);
             }
             return true;

Mage.Sets/src/mage/sets/mirrodin/CrystalShard.java

@@ -107,7 +107,7 @@ class CrystalShardEffect extends OneShotEffect {
                     cost.clearPaid();
                     final StringBuilder sb = new StringBuilder("Pay {1}? (Otherwise ").append(targetCreature.getName()).append(" will be returned to its owner's hand)");
                     if (player.chooseUse(Outcome.Benefit, sb.toString(), source, game)) {
-                        cost.pay(source, game, targetCreature.getControllerId(), targetCreature.getControllerId(), false);
+                        cost.pay(source, game, targetCreature.getControllerId(), targetCreature.getControllerId(), false, null);
                     }
                     if (!cost.isPaid()) {
                         controller.moveCards(targetCreature, Zone.BATTLEFIELD, Zone.HAND, source, game);

Mage.Sets/src/mage/sets/mirrodin/TajNarSwordsmith.java

@@ -97,7 +97,7 @@ class TajNarSwordsmithEffect extends OneShotEffect {
         if (player != null && player.chooseUse(Outcome.BoostCreature, "Do you want to to pay {X}?", source, game)) {
             int costX = player.announceXMana(0, Integer.MAX_VALUE, "Announce the value for {X}", game, source);
             Cost cost = new GenericManaCost(costX);
-            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+            if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                 FilterCard filter = new FilterCard("Equipment card with converted mana cost " + costX + " or less");
                 filter.add(new SubtypePredicate("Equipment"));
                 filter.add(new ConvertedManaCostPredicate(ComparisonType.LessThan, costX + 1));

Mage.Sets/src/mage/sets/modernmasters/RiftElemental.java

@@ -35,6 +35,7 @@ import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.ActivatedAbility;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.RemoveCounterCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
@@ -141,7 +142,7 @@ class RemoveCounterFromCardCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         paid = false;
         Player controller = game.getPlayer(controllerId);
         if (target.choose(Outcome.UnboostCreature, controllerId, sourceId, game)) {

Mage.Sets/src/mage/sets/nemesis/RootwaterThief.java

@@ -99,7 +99,7 @@ class RootwaterThiefEffect extends OneShotEffect {
         }
         String message = "Pay {2} to exile a card from damaged player's library?";
         Cost cost = new ManaCostsImpl("{2}");
-        if(controller.chooseUse(Outcome.Benefit, message, source, game) && cost.pay(source, game, source.getSourceId(), controller.getId(), false))
+        if(controller.chooseUse(Outcome.Benefit, message, source, game) && cost.pay(source, game, source.getSourceId(), controller.getId(), false, null))
         {
             TargetCardInLibrary target = new TargetCardInLibrary();
             if (controller.searchLibrary(target, game, damagedPlayer.getId())) {

Mage.Sets/src/mage/sets/newphyrexia/GreenhiltTrainee.java

@@ -35,6 +35,7 @@ import mage.constants.Rarity;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.effects.common.continuous.BoostTargetEffect;
@@ -102,7 +103,7 @@ class GreenhiltTraineeCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         this.paid = true;
         return paid;
     }

Mage.Sets/src/mage/sets/oathofthegatewatch/GravityNegator.java

@@ -40,6 +40,8 @@ import mage.cards.CardImpl;
 import mage.constants.CardType;
 import mage.constants.Duration;
 import mage.constants.Rarity;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.permanent.AnotherPredicate;
 import mage.target.common.TargetCreaturePermanent;
 
 /**
@@ -48,6 +50,12 @@ import mage.target.common.TargetCreaturePermanent;
  */
 public class GravityNegator extends CardImpl {
 
+    private final static FilterCreaturePermanent filter = new FilterCreaturePermanent("another target creature");
+
+    static {
+        filter.add(new AnotherPredicate());
+    }
+
     public GravityNegator(UUID ownerId) {
         super(ownerId, 45, "Gravity Negator", Rarity.COMMON, new CardType[]{CardType.CREATURE}, "{3}{U}");
         this.expansionSetCode = "OGW";
@@ -65,7 +73,7 @@ public class GravityNegator extends CardImpl {
         // Whenenever Gravity Negator attacks, you may pay {C}. If you do, another target creature gains flying until end of turn.
         Ability ability = new AttacksTriggeredAbility(new DoIfCostPaid(new GainAbilityTargetEffect(FlyingAbility.getInstance(), Duration.EndOfTurn), new ManaCostsImpl("{C}")), false,
                 "Whenever {this} attacks you may pay {C}. If you do, another target creature gains flying until end of turn.");
-        ability.addTarget(new TargetCreaturePermanent());
+        ability.addTarget(new TargetCreaturePermanent(filter));
         this.addAbility(ability);
     }
 

Mage.Sets/src/mage/sets/oathofthegatewatch/KozilekTheGreatDistortion.java

@@ -34,6 +34,7 @@ import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.condition.common.CardsInHandCondition;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.decorator.ConditionalTriggeredAbility;
 import mage.abilities.effects.OneShotEffect;
@@ -133,7 +134,7 @@ class KozilekDiscardCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Spell targetSpell = game.getStack().getSpell(ability.getFirstTarget());
         if (targetSpell == null) {
             return false;

Mage.Sets/src/mage/sets/odyssey/DecayingSoil.java

@@ -175,7 +175,7 @@ class DecayingSoilEffect extends OneShotEffect {
         if (player != null) {
             if (player.chooseUse(Outcome.Benefit, " - Pay " + cost.getText() + "?", source, game)) {
                 cost.clearPaid();
-                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                     UUID target = this.getTargetPointer().getFirst(game, source);
                       if (target != null) {
                         Card card = game.getCard(target);

Mage.Sets/src/mage/sets/odyssey/DelayingShield.java

@@ -139,7 +139,7 @@ class DelayingShieldUpkeepEffect extends OneShotEffect {
             for (int i = numCounters; i > 0; i--) {
                 if (controller.chooseUse(Outcome.Benefit, "Pay {1}{W}? (" + i + " counters left to pay)", source, game)) {
                     Cost cost = new ManaCostsImpl<>("{1}{W}");
-                    if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+                    if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
                         continue;
                     }
                 }

Mage.Sets/src/mage/sets/odyssey/Divert.java

@@ -92,7 +92,7 @@ class DivertEffect extends OneShotEffect {
             if (player != null) {
                 cost.clearPaid();
                 if (!cost.pay(source, game, spell.getControllerId(),
-                        spell.getControllerId(), false)) {
+                        spell.getControllerId(), false, null)) {
                     return spell.chooseNewTargets(game, source.getControllerId(), true, true, null);
                 }
             }

Mage.Sets/src/mage/sets/odyssey/UnifyingTheory.java

@@ -95,7 +95,7 @@ class UnifyingTheoryEffect extends OneShotEffect {
         if (caster != null) {
             if (caster.chooseUse(Outcome.DrawCard, "Pay {2} to draw a card?", source, game)) {
                 Cost cost = new ManaCostsImpl("{2}");
-                if (cost.pay(source, game, source.getSourceId(), caster.getId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), caster.getId(), false, null)) {
                     caster.drawCards(1, game);
                 }
             }

Mage.Sets/src/mage/sets/planarchaos/BrainGorgers.java

@@ -101,7 +101,7 @@ class BrainGorgersCounterSourceEffect extends OneShotEffect {
                 Player player = game.getPlayer(playerId);
                 if (cost.canPay(source, source.getSourceId(), player.getId(), game)
                         && player.chooseUse(outcome, "Sacrifice a creature to counter " + sourceObject.getIdName() + "?", source, game)) {
-                    if (cost.pay(source, game, source.getSourceId(), player.getId(), false)) {
+                    if (cost.pay(source, game, source.getSourceId(), player.getId(), false, null)) {
                         game.informPlayers(player.getLogName() + " sacrifices a creature to counter " + sourceObject.getIdName() + ".");
                         Spell spell = game.getStack().getSpell(source.getSourceId());
                         if (spell != null) {

Mage.Sets/src/mage/sets/planarchaos/DashHopes.java

@@ -97,7 +97,7 @@ class DashHopesCounterSourceEffect extends OneShotEffect {
                 cost.clearPaid();
                 if (cost.canPay(source, source.getSourceId(), player.getId(), game)
                         && player.chooseUse(outcome, "Pay 5 life to counter " + sourceObject.getIdName() + "?", source, game)) {
-                    if (cost.pay(source, game, source.getSourceId(), player.getId(), false)) {
+                    if (cost.pay(source, game, source.getSourceId(), player.getId(), false, null)) {
                         game.informPlayers(player.getLogName() + " pays 5 life to counter " + sourceObject.getIdName() + ".");
                         Spell spell = game.getStack().getSpell(source.getSourceId());
                         if (spell != null) {

Mage.Sets/src/mage/sets/planarchaos/Phantasmagorian.java

@@ -103,7 +103,7 @@ class CounterSourceEffect extends OneShotEffect {
                 cost.clearPaid();
                 if (cost.canPay(source, source.getSourceId(), player.getId(), game)
                         && player.chooseUse(outcome, "Discard three cards to counter " + sourceObject.getIdName() + "?", source, game)) {
-                    if (cost.pay(source, game, source.getSourceId(), playerId, false)) {
+                    if (cost.pay(source, game, source.getSourceId(), playerId, false, null)) {
                         game.informPlayers(player.getLogName() + " discards 3 cards to counter " + sourceObject.getIdName() + ".");
                         Spell spell = game.getStack().getSpell(source.getSourceId());
                         if (spell != null) {

Mage.Sets/src/mage/sets/planarchaos/ShivanWumpus.java

@@ -101,7 +101,7 @@ class ShivanWumpusEffect extends PutOnLibrarySourceEffect {
                 if (player != null
                         && cost.canPay(source, source.getSourceId(), playerId, game)
                         && player.chooseUse(Outcome.Sacrifice, "Sacrifice a land?", source, game)
-                        && cost.pay(source, game, source.getSourceId(), playerId, true)) {
+                        && cost.pay(source, game, source.getSourceId(), playerId, true, null)) {
                     costPaid = true;
                 }
             }

Mage.Sets/src/mage/sets/planarchaos/ShroudedLore.java

@@ -118,7 +118,7 @@ class ShroudedLoreEffect extends OneShotEffect {
                 if(!done) {
                     if(cost.canPay(source, source.getSourceId(), you.getId(), game) && you.chooseUse(Outcome.Benefit, "Pay {B} to choose a different card ?", source, game)) {
                         cost.clearPaid();
-                        if(!cost.pay(source, game, source.getSourceId(), you.getId(), false)) {
+                        if(!cost.pay(source, game, source.getSourceId(), you.getId(), false, null)) {
                             done = true;
                         }
                     }

Mage.Sets/src/mage/sets/planarchaos/SimianSpiritGuide.java

@@ -34,6 +34,7 @@ import mage.constants.Rarity;
 import mage.MageInt;
 import mage.Mana;
 import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.effects.common.BasicManaEffect;
 import mage.abilities.mana.SimpleManaAbility;
@@ -84,7 +85,7 @@ class ExileSourceFromHandCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Card card = game.getCard(sourceId);
         Player player = game.getPlayer(controllerId);
         if (player != null && player.getHand().contains(sourceId) && card != null) {

Mage.Sets/src/mage/sets/planechase/ThirstForKnowledge.java

@@ -96,7 +96,7 @@ class ThirstforKnowledgeEffect extends OneShotEffect {
                 && you.chooseUse(Outcome.Discard, "Do you want to discard an artifact?  If you don't, you must discard 2 cards", source, game)) {
             Cost cost = new DiscardTargetCost(new TargetCardInHand(filter));
             if (cost.canPay(source, source.getSourceId(), you.getId(), game)) {
-                if (cost.pay(source, game, source.getSourceId(), you.getId(), false)) {
+                if (cost.pay(source, game, source.getSourceId(), you.getId(), false, null)) {
                     return true;
                 }
             }

Mage.Sets/src/mage/sets/planeshift/PhyrexianTyranny.java

@@ -127,7 +127,7 @@ class PhyrexianTyrannyEffect extends OneShotEffect {
         Player player = game.getPlayer(targetPointer.getFirst(game, source));
         if (player != null) {
             Cost cost = new GenericManaCost(2);
-            if (!cost.pay(source, game, player.getId(), player.getId(), false)) {
+            if (!cost.pay(source, game, player.getId(), player.getId(), false, null)) {
                 player.damage(2, source.getSourceId(), game, false, true);
             }
             return true;

Mage.Sets/src/mage/sets/prophecy/RhysticStudy.java

@@ -92,7 +92,7 @@ class RhysticStudyDrawEffect extends OneShotEffect {
         if (controller != null && opponent != null && sourceObject != null) {
             Cost cost = new GenericManaCost(1);
             String message = "Would you like to pay {1} to prevent the opponent to draw a card?";
-            if (!(opponent.chooseUse(Outcome.Benefit, message, source, game) && cost.pay(source, game, source.getSourceId(), opponent.getId(), false))) {
+            if (!(opponent.chooseUse(Outcome.Benefit, message, source, game) && cost.pay(source, game, source.getSourceId(), opponent.getId(), false, null))) {
                 if(controller.chooseUse(Outcome.DrawCard, "Draw a card (" + sourceObject.getLogName() +")", source, game)) {
                     controller.drawCards(1, game);
                 }

Mage.Sets/src/mage/sets/ravnica/Sunforger.java

@@ -32,6 +32,7 @@ import mage.ObjectColor;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.mana.GenericManaCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
@@ -149,7 +150,7 @@ class UnattachSourceCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent attachment = game.getPermanent(sourceId);
         Permanent permanent = game.getPermanent(attachment.getAttachedTo());
         if (permanent != null) {

Mage.Sets/src/mage/sets/returntoravnica/SoulTithe.java

@@ -111,7 +111,7 @@ class SoulTitheEffect extends OneShotEffect {
                     int cmc = permanent.getManaCost().convertedManaCost();
                     if (player.chooseUse(Outcome.Benefit, "Pay {" + cmc + "} for " + permanent.getName() + "? (otherwise you sacrifice it)", source, game)) {
                         Cost cost = new GenericManaCost(cmc);
-                        if (cost.pay(source, game, source.getSourceId(), player.getId(), false)) {
+                        if (cost.pay(source, game, source.getSourceId(), player.getId(), false, null)) {
                             return true;
                         }
                     }

Mage.Sets/src/mage/sets/saviorsofkamigawa/TombOfUrami.java

@@ -35,6 +35,7 @@ import mage.MageInt;
 import mage.ObjectColor;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.costs.mana.ManaCostsImpl;
@@ -93,7 +94,7 @@ class SacrificeAllLandCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         for(Permanent permanent : game.getBattlefield().getActivePermanents(new FilterControlledLandPermanent(), ability.getControllerId(), game)){
             paid |= permanent.sacrifice(sourceId, game);
         }

Mage.Sets/src/mage/sets/scarsofmirrodin/BloodshotTrainee.java

@@ -34,6 +34,7 @@ import mage.constants.Zone;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.Cost;
 import mage.abilities.costs.CostImpl;
 import mage.abilities.costs.common.TapSourceCost;
 import mage.abilities.effects.common.DamageTargetEffect;
@@ -100,7 +101,7 @@ class BloodshotTraineeCost extends CostImpl {
     }
 
     @Override
-    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
+    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
         this.paid = true;
         return paid;
     }

Mage.Sets/src/mage/sets/scarsofmirrodin/Embersmith.java

@@ -88,7 +88,7 @@ class EmbersmithEffect extends OneShotEffect {
     public boolean apply(Game game, Ability source) {
         Cost cost = new GenericManaCost(1);
         cost.clearPaid();
-        if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false)) {
+        if (cost.pay(source, game, source.getSourceId(), source.getControllerId(), false, null)) {
             Permanent permanent = game.getPermanent(source.getFirstTarget());
             if (permanent != null) {
                 permanent.damage(1, source.getSourceId(), game, false, true);