* Changed ReplacementEffects for TARGET and COUNTER events to ContinuousRuleModifyingEffects.

Mage.Server/src/main/java/mage/server/game/GameWorker.java

@@ -61,10 +61,13 @@ public class GameWorker implements Callable {
             game.cleanUp();
         } catch (MageException ex) {
             logger.fatal("GameWorker mage error [" + game.getId() + "]" +ex, ex);
+            ex.printStackTrace();
         } catch (Exception e) {
-            logger.fatal("GameWorker general exception [" + game.getId() + "]" + e, e);
+            logger.fatal("GameWorker general exception [" + game.getId() + "]" + e.getMessage(), e);
+            e.printStackTrace();
         } catch (Error err) {
             logger.fatal("GameWorker general error [" + game.getId() + "]" +err, err);
+            err.printStackTrace();
         }
         return null;
     }

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.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.abilities.mana.ColorlessManaAbility;
@@ -208,7 +209,7 @@ class CavernOfSoulsWatcher extends Watcher {
     }
 }
 
-class CavernOfSoulsCantCounterEffect extends ReplacementEffectImpl {
+class CavernOfSoulsCantCounterEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public CavernOfSoulsCantCounterEffect() {
         super(Duration.WhileOnBattlefield, Outcome.Benefit);
@@ -230,17 +231,16 @@ class CavernOfSoulsCantCounterEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public String getInfoMessage(Ability source, Game game) {
-        Player caster = game.getPlayer(event.getPlayerId());
         MageObject sourceObject = game.getObject(source.getSourceId());
-        if (caster != null) {
+        if (sourceObject != null) {
-            game.informPlayer(caster, "This spell can't be countered because a colored mana from " + sourceObject.getName() + " was spent to cast it.");
+            return "This spell can't be countered because a colored mana from " + sourceObject.getName() + " was spent to cast it.";
         }
-        return true;
+        return null;
     }
 
     @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
         if (event.getType() == GameEvent.EventType.COUNTER) {
             CavernOfSoulsWatcher watcher = (CavernOfSoulsWatcher) game.getState().getWatchers().get("ManaPaidFromCavernOfSoulsWatcher");
             Spell spell = game.getStack().getSpell(event.getTargetId());

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

@@ -37,6 +37,7 @@ import mage.abilities.common.EntersBattlefieldTappedAbility;
 import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.costs.common.PayLifeCost;
 import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.abilities.mana.SimpleManaAbility;
 import mage.cards.CardImpl;
@@ -125,7 +126,7 @@ class BoseijuWhoSheltersAllWatcher extends Watcher {
     }
 }
 
-class BoseijuWhoSheltersAllCantCounterEffect extends ReplacementEffectImpl {
+class BoseijuWhoSheltersAllCantCounterEffect extends ContinuousRuleModifiyingEffectImpl {
 
     private static final FilterCard filter = new FilterInstantOrSorceryCard();
     
@@ -149,17 +150,16 @@ class BoseijuWhoSheltersAllCantCounterEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public String getInfoMessage(Ability source, Game game) {
-        Player player = game.getPlayer(event.getPlayerId());
+        MageObject sourceObject = game.getObject(source.getSourceId());
-        Spell spell = game.getStack().getSpell(event.getTargetId());
+        if (sourceObject != null) {
-        if (player != null && spell != null) {
+            return "This spell can't be countered by spells or abilities (" + sourceObject.getName() + ").";
-            game.informPlayers(new StringBuilder(spell.getName()).append(" can't be countered by spells or abilities (Boseiju, Who Shelters All) - counter ignored").toString());
         }
-        return true;
+        return null;
     }
 
     @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
         if (event.getType() == GameEvent.EventType.COUNTER) {
             BoseijuWhoSheltersAllWatcher watcher = (BoseijuWhoSheltersAllWatcher) game.getState().getWatchers().get("ManaPaidFromBoseijuWhoSheltersAllWatcher");
             Spell spell = game.getStack().getSpell(event.getTargetId());

Mage.Sets/src/mage/sets/conflux/Banefire.java

@@ -33,6 +33,7 @@ import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.condition.Condition;
 import mage.abilities.dynamicvalue.DynamicValue;
 import mage.abilities.dynamicvalue.common.ManacostVariableValue;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.cards.Card;
@@ -128,14 +129,14 @@ class BaneFireEffect extends OneShotEffect {
             return true;
         }
         if (targetCreature != null) {
-            targetCreature.damage(damage, source.getSourceId(), game, preventable, false);
+            targetCreature.damage(damage, source.getSourceId(), game, false, preventable);
             return true;
         }
         return false;
     }
 }
 
-class BanefireCantCounterEffect extends ReplacementEffectImpl {
+class BanefireCantCounterEffect extends ContinuousRuleModifiyingEffectImpl {
 
     Condition condition = new testCondition(new ManacostVariableValue(), 5);
 
@@ -160,12 +161,7 @@ class BanefireCantCounterEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == EventType.COUNTER) {
             Card card = game.getCard(source.getSourceId());
             if (card != null) {

Mage.Sets/src/mage/sets/magic2013/GroundSeal.java

@@ -28,15 +28,18 @@
 package mage.sets.magic2013;
 
 import java.util.UUID;
-
-import mage.constants.*;
 import mage.abilities.Ability;
 import mage.abilities.common.EntersBattlefieldTriggeredAbility;
 import mage.abilities.common.SimpleStaticAbility;
-import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.common.DrawCardSourceControllerEffect;
 import mage.cards.Card;
 import mage.cards.CardImpl;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.Rarity;
+import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.events.GameEvent;
 import mage.game.stack.StackObject;
@@ -70,7 +73,7 @@ public class GroundSeal extends CardImpl {
     }
 }
 
-class GroundSealEffect extends ReplacementEffectImpl {
+class GroundSealEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public GroundSealEffect() {
         super(Duration.WhileOnBattlefield, Outcome.Benefit);
@@ -92,12 +95,7 @@ class GroundSealEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == GameEvent.EventType.TARGET) {
             Card targetCard = game.getCard(event.getTargetId());
             StackObject stackObject = (StackObject) game.getStack().getStackObject(event.getSourceId());

Mage.Sets/src/mage/sets/magic2014/FiendslayerPaladin.java

@@ -32,7 +32,7 @@ import mage.MageInt;
 import mage.ObjectColor;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleStaticAbility;
-import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.keyword.FirstStrikeAbility;
 import mage.abilities.keyword.LifelinkAbility;
 import mage.cards.Card;
@@ -44,6 +44,7 @@ import mage.constants.Rarity;
 import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
 import mage.game.stack.StackObject;
 
 /**
@@ -83,7 +84,7 @@ public class FiendslayerPaladin extends CardImpl {
     }
 }
 
-class FiendslayerPaladinEffect extends ReplacementEffectImpl {
+class FiendslayerPaladinEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public FiendslayerPaladinEffect() {
         super(Duration.WhileOnBattlefield, Outcome.BoostCreature);
@@ -105,12 +106,16 @@ class FiendslayerPaladinEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public String getInfoMessage(Ability source, Game game) {
-        return true;
+        Permanent sourcePermanent = game.getPermanent(source.getSourceId());
+        if (sourcePermanent != null) {
+            return sourcePermanent.getLogName() + " can't be the target of black or red spells opponents control";
+        }
+        return null;
     }
 
     @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
         if (event.getType() == GameEvent.EventType.TARGET) {
             Card targetCard = game.getCard(event.getTargetId());
             StackObject stackObject = (StackObject) game.getStack().getStackObject(event.getSourceId());

Mage.Sets/src/mage/sets/magic2014/SavageSummoning.java

@@ -33,9 +33,11 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 import java.util.UUID;
+import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.common.CantCounterAbility;
 import mage.abilities.effects.AsThoughEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.cards.Card;
 import mage.cards.CardImpl;
@@ -141,9 +143,9 @@ class SavageSummoningAsThoughEffect extends AsThoughEffectImpl {
 
 class SavageSummoningWatcher extends Watcher {
 
-    private Set<String> savageSummoningSpells = new HashSet<String>();;
+    private Set<String> savageSummoningSpells = new HashSet<>();;
-    private Map<UUID, Set<String>> spellsCastWithSavageSummoning = new LinkedHashMap<UUID, Set<String>>();
+    private Map<UUID, Set<String>> spellsCastWithSavageSummoning = new LinkedHashMap<>();
-    private Map<String, Set<String>> cardsCastWithSavageSummoning = new LinkedHashMap<String, Set<String>>();
+    private Map<String, Set<String>> cardsCastWithSavageSummoning = new LinkedHashMap<>();
 
     public SavageSummoningWatcher() {
         super("consumeSavageSummoningWatcher", WatcherScope.PLAYER);
@@ -171,9 +173,9 @@ class SavageSummoningWatcher extends Watcher {
             if (isSavageSummoningSpellActive() && event.getPlayerId().equals(getControllerId())) {
                 Spell spell = game.getStack().getSpell(event.getTargetId());
                 if (spell != null && spell.getCardType().contains(CardType.CREATURE)) {                    
-                    spellsCastWithSavageSummoning.put(spell.getId(), new HashSet<String>(savageSummoningSpells));
+                    spellsCastWithSavageSummoning.put(spell.getId(), new HashSet<>(savageSummoningSpells));
                     String cardKey = new StringBuilder(spell.getCard().getId().toString()).append("_").append(spell.getCard().getZoneChangeCounter()).toString();
-                    cardsCastWithSavageSummoning.put(cardKey, new HashSet<String>(savageSummoningSpells));
+                    cardsCastWithSavageSummoning.put(cardKey, new HashSet<>(savageSummoningSpells));
                     savageSummoningSpells.clear();
                 }
             }
@@ -219,7 +221,7 @@ class SavageSummoningWatcher extends Watcher {
 
 }
 
-class SavageSummoningCantCounterEffect extends ReplacementEffectImpl {
+class SavageSummoningCantCounterEffect extends ContinuousRuleModifiyingEffectImpl {
     private SavageSummoningWatcher watcher;
     private int zoneChangeCounter;
 
@@ -255,12 +257,16 @@ class SavageSummoningCantCounterEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public String getInfoMessage(Ability source, Game game) {
-        return true;
+        MageObject sourceObject = game.getObject(source.getSourceId());
+        if (sourceObject != null) {
+            return "This creature spell can't be countered (" + sourceObject.getName() + ").";
+        }
+        return null;
     }
 
     @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
         if (event.getType() == GameEvent.EventType.COUNTER) {
             Spell spell = game.getStack().getSpell(event.getTargetId());
             if (spell != null && watcher.isSpellCastWithThisSavageSummoning(spell.getId(), source.getSourceId(), zoneChangeCounter)) {

Mage.Sets/src/mage/sets/shadowmoor/VexingShusher.java

@@ -29,10 +29,12 @@ package mage.sets.shadowmoor;
 
 import java.util.UUID;
 import mage.MageInt;
+import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.common.CantCounterAbility;
 import mage.abilities.common.SimpleActivatedAbility;
 import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.cards.CardImpl;
 import mage.constants.CardType;
@@ -80,7 +82,7 @@ public class VexingShusher extends CardImpl {
     }
 }
 
-class VexingShusherCantCounterTargetEffect extends ReplacementEffectImpl {
+class VexingShusherCantCounterTargetEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public VexingShusherCantCounterTargetEffect() {
         super(Duration.EndOfTurn, Outcome.Benefit);
@@ -102,12 +104,16 @@ class VexingShusherCantCounterTargetEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public String getInfoMessage(Ability source, Game game) {
-        return true;
+        MageObject sourceObject = game.getObject(source.getSourceId());
+        if (sourceObject != null) {
+            return "This spell can't be countered by spells or abilities (" + sourceObject.getName() + ").";
+        }
+        return null;
     }
 
     @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
         return event.getType() == EventType.COUNTER && event.getTargetId().equals(targetPointer.getFirst(game, source));
     }
 

Mage.Sets/src/mage/sets/tenth/GaeasHerald.java

@@ -27,15 +27,17 @@
  */
 package mage.sets.tenth;
 
-
 import java.util.UUID;
-
-import mage.constants.*;
 import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.SimpleStaticAbility;
-import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.cards.CardImpl;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.Rarity;
+import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.events.GameEvent;
 import mage.game.stack.Spell;
@@ -70,8 +72,7 @@ public class GaeasHerald extends CardImpl {
 }
 
 
-class CantCounterEffect extends ReplacementEffectImpl {
+class CantCounterEffect extends ContinuousRuleModifiyingEffectImpl {
-
 
     public CantCounterEffect() {
         super(Duration.WhileOnBattlefield, Outcome.Benefit);
@@ -94,12 +95,7 @@ class CantCounterEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == GameEvent.EventType.COUNTER) {
             Spell spell = game.getStack().getSpell(event.getTargetId());
             if (spell != null && spell.getCardType().contains(CardType.CREATURE)) {

Mage.Sets/src/mage/sets/theros/UnderworldCerberus.java

@@ -32,6 +32,7 @@ import mage.MageInt;
 import mage.abilities.Ability;
 import mage.abilities.common.DiesTriggeredAbility;
 import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.ReplacementEffectImpl;
 import mage.abilities.effects.common.ExileSourceEffect;
 import mage.abilities.effects.common.ReturnToHandFromGraveyardAllEffect;
@@ -84,7 +85,7 @@ public class UnderworldCerberus extends CardImpl {
     }
 }
 
-class UnderworldCerberusEffect extends ReplacementEffectImpl {
+class UnderworldCerberusEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public UnderworldCerberusEffect() {
         super(Duration.WhileOnBattlefield, Outcome.Benefit);
@@ -106,12 +107,7 @@ class UnderworldCerberusEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == GameEvent.EventType.TARGET) {
             Card targetCard = game.getCard(event.getTargetId());
             StackObject stackObject = (StackObject) game.getStack().getStackObject(event.getSourceId());

Mage/src/mage/abilities/effects/common/CantActivateAbilitiesAttachedEffect.java

@@ -28,7 +28,7 @@
 package mage.abilities.effects.common;
 
 import mage.abilities.Ability;
-import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.constants.Duration;
 import mage.constants.Outcome;
 import mage.game.Game;
@@ -40,7 +40,7 @@ import mage.game.permanent.Permanent;
  * @author LevelX2
  */
 
-public class CantActivateAbilitiesAttachedEffect extends ReplacementEffectImpl {
+public class CantActivateAbilitiesAttachedEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public CantActivateAbilitiesAttachedEffect() {
         super(Duration.WhileOnBattlefield, Outcome.UnboostCreature);
@@ -62,12 +62,7 @@ public class CantActivateAbilitiesAttachedEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == GameEvent.EventType.ACTIVATE_ABILITY) {
             Permanent enchantment = game.getPermanent(source.getSourceId());
             if (enchantment != null && enchantment.getAttachedTo() != null) {

Mage/src/mage/abilities/effects/common/CantCounterControlledEffect.java

@@ -28,11 +28,11 @@
 
 package mage.abilities.effects.common;
 
-import mage.constants.Duration;
-import mage.constants.Outcome;
 import mage.MageObject;
 import mage.abilities.Ability;
-import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
+import mage.constants.Duration;
+import mage.constants.Outcome;
 import mage.filter.FilterObject;
 import mage.filter.FilterSpell;
 import mage.game.Game;
@@ -44,7 +44,7 @@ import mage.game.stack.Spell;
  *
  * @author BetaSteward_at_googlemail.com
  */
-public class CantCounterControlledEffect extends ReplacementEffectImpl {
+public class CantCounterControlledEffect extends ContinuousRuleModifiyingEffectImpl {
 
     private FilterSpell filterTarget;
     private FilterObject filterSource;
@@ -62,11 +62,13 @@ public class CantCounterControlledEffect extends ReplacementEffectImpl {
 
     public CantCounterControlledEffect(final CantCounterControlledEffect effect) {
         super(effect);
-        if (effect.filterTarget != null)
+        if (effect.filterTarget != null) {
             this.filterTarget = effect.filterTarget.copy();
-        if (effect.filterSource != null)
+        }
+        if (effect.filterSource != null) {
             this.filterSource = effect.filterSource.copy();
         }
+    }
 
     @Override
     public CantCounterControlledEffect copy() {
@@ -79,19 +81,14 @@ public class CantCounterControlledEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == EventType.COUNTER) {
             Spell spell = game.getStack().getSpell(event.getTargetId());
             if (spell != null && spell.getControllerId().equals(source.getControllerId())
                     && filterTarget.match(spell, game)) {
-                if (filterSource == null)
+                if (filterSource == null) {
                     return true;
-                else {
+                } else {
                     MageObject sourceObject = game.getObject(source.getSourceId());
                     if (sourceObject != null && filterSource.match(sourceObject, game)) {
                         return true;

Mage/src/mage/abilities/effects/common/CantCounterSourceEffect.java

@@ -30,7 +30,7 @@ package mage.abilities.effects.common;
 
 import java.util.UUID;
 import mage.abilities.Ability;
-import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.cards.Card;
 import mage.constants.Duration;
 import mage.constants.Outcome;
@@ -42,7 +42,7 @@ import mage.game.events.GameEvent.EventType;
  *
  * @author BetaSteward_at_googlemail.com
  */
-public class CantCounterSourceEffect extends ReplacementEffectImpl {
+public class CantCounterSourceEffect extends ContinuousRuleModifiyingEffectImpl {
 
     public CantCounterSourceEffect() {
         super(Duration.WhileOnStack, Outcome.Benefit);
@@ -64,12 +64,7 @@ public class CantCounterSourceEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == EventType.COUNTER) {
             Card card = game.getCard(source.getSourceId());
             if (card != null) {

Mage/src/mage/abilities/effects/common/CantTargetEffect.java

@@ -28,10 +28,10 @@
 
 package mage.abilities.effects.common;
 
+import mage.abilities.Ability;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.constants.Duration;
 import mage.constants.Outcome;
-import mage.abilities.Ability;
-import mage.abilities.effects.ReplacementEffectImpl;
 import mage.filter.FilterPermanent;
 import mage.filter.FilterStackObject;
 import mage.game.Game;
@@ -44,7 +44,7 @@ import mage.game.stack.StackObject;
  *
  * @author BetaSteward_at_googlemail.com
  */
-public class CantTargetEffect extends ReplacementEffectImpl {
+public class CantTargetEffect extends ContinuousRuleModifiyingEffectImpl {
 
     private FilterPermanent filterTarget;
     private FilterStackObject filterSource;
@@ -82,12 +82,7 @@ public class CantTargetEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == EventType.TARGET) {
             Permanent permanent = game.getPermanent(event.getTargetId());
             if (permanent != null && filterTarget.match(permanent, source.getSourceId(), source.getControllerId(), game)) {

Mage/src/mage/abilities/effects/common/CantTargetSourceEffect.java

@@ -28,10 +28,10 @@
 
 package mage.abilities.effects.common;
 
+import mage.abilities.Ability;
+import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.constants.Duration;
 import mage.constants.Outcome;
-import mage.abilities.Ability;
-import mage.abilities.effects.ReplacementEffectImpl;
 import mage.filter.FilterStackObject;
 import mage.game.Game;
 import mage.game.events.GameEvent;
@@ -42,9 +42,9 @@ import mage.game.stack.StackObject;
  *
  * @author BetaSteward_at_googlemail.com
  */
-public class CantTargetSourceEffect extends ReplacementEffectImpl {
+public class CantTargetSourceEffect extends ContinuousRuleModifiyingEffectImpl {
 
-    private FilterStackObject filterSource;
+    private final FilterStackObject filterSource;
 
     public CantTargetSourceEffect(FilterStackObject filterSource, Duration duration) {
         super(duration, Outcome.Benefit);
@@ -68,12 +68,7 @@ public class CantTargetSourceEffect extends ReplacementEffectImpl {
     }
 
     @Override
-    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+    public boolean applies(GameEvent event, Ability source, boolean checkPlayableMode, Game game) {
-        return true;
-    }
-
-    @Override
-    public boolean applies(GameEvent event, Ability source, Game game) {
         if (event.getType() == EventType.TARGET && event.getTargetId().equals(source.getSourceId())) {
             StackObject sourceObject = game.getStack().getStackObject(event.getSourceId());
             if (sourceObject != null && filterSource.match(sourceObject, source.getControllerId(), game)) {

Mage/src/mage/abilities/effects/common/EpicEffect.java

@@ -11,7 +11,6 @@ import mage.abilities.common.delayed.AtTheBeginOfYourNextUpkeepDelayedTriggeredA
 import mage.abilities.effects.ContinuousRuleModifiyingEffectImpl;
 import mage.abilities.effects.Effect;
 import mage.abilities.effects.OneShotEffect;
-import mage.abilities.effects.ReplacementEffectImpl;
 import mage.constants.Duration;
 import mage.constants.Outcome;
 import mage.game.Game;

Mage/src/mage/game/permanent/PermanentImpl.java

@@ -750,9 +750,9 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
             if (hasProtectionFrom(source, game)) {
                 return false;
             }
-            // needed to get the correct possible targets if target replacement effects are active
+            // needed to get the correct possible targets if target rule modification effects are active
             // e.g. Fiendslayer Paladin tried to target with Ultimate Price
-            if (game.replaceEvent(GameEvent.getEvent(EventType.TARGET, this.getId(), source.getId(), sourceControllerId))) {
+            if (game.getContinuousEffects().preventedByRuleModification(GameEvent.getEvent(EventType.TARGET, this.getId(), source.getId(), sourceControllerId), game, true)) {
                 return false;
             }
         }

Mage/src/mage/game/stack/SpellStack.java

@@ -30,6 +30,7 @@ package mage.game.stack;
 
 import java.util.ArrayDeque;
 import java.util.UUID;
+import mage.MageObject;
 import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.events.GameEvent;
@@ -73,18 +74,20 @@ public class SpellStack extends ArrayDeque<StackObject> {
 
     public boolean counter(UUID objectId, UUID sourceId, Game game) {
         StackObject stackObject = getStackObject(objectId);
-        if (stackObject != null) {
+        MageObject sourceObject = game.getObject(sourceId);
+        if (stackObject != null && sourceObject != null) {
             if (!game.replaceEvent(GameEvent.getEvent(GameEvent.EventType.COUNTER, objectId, sourceId, stackObject.getControllerId()))) {
                 if ( stackObject instanceof Spell ) {
                     game.rememberLKI(objectId, Zone.STACK, (Spell)stackObject);
                 }
                 this.remove(stackObject);
                 stackObject.counter(sourceId, game);
-                game.informPlayers(new StringBuilder(stackObject.getName()).append(" is countered").toString());
+                game.informPlayers(new StringBuilder(stackObject.getName()).append(" is countered by ").append(sourceObject.getLogName()).toString());
                 game.fireEvent(GameEvent.getEvent(GameEvent.EventType.COUNTERED, objectId, sourceId, stackObject.getControllerId()));
-                return true;
+            } else {
+                game.informPlayers(new StringBuilder(stackObject.getName()).append(" could not be countered by ").append(sourceObject.getLogName()).toString());
             }
-            return false;
+            return true;
         }
         return false;
     }