Game: fixed rare bugs in some cards after rollback or cancel actions:

* Cumulative upkeep cost - fixed that it can lost payed state (cards: Aboroth, Karplusan Minotaur, Psychic Vortex, Sheltering Ancient);
 * Effects - fixed that it can lost selected targets or other settings (cards: Citadel of Pain, Crimson Honor Guard, Curfew, Leveler, Mana Cache, Monsoon, Paradigm Shift, Saprazzan Bailiff);
 * Exile all cards from graveyard ability - fixed that it can lost targets (example: Agent of Erebos);
 * Melee ability - fixed that it can lost targets (example: Adriana, Captain of the Guard).

Mage.Sets/src/mage/cards/a/Aboroth.java

@@ -48,6 +48,10 @@ class AborothCost extends CostImpl {
         this.text = "Put a -1/-1 counter on Aboroth";
     }
 
+    private AborothCost(final AborothCost cost) {
+        super(cost);
+    }
+
     @Override
     public boolean pay(Ability ability, Game game, Ability source, UUID controllerId, boolean noMana, Cost costToPay) {
         Permanent permanent = game.getPermanent(source.getSourceId());
@@ -66,6 +70,6 @@ class AborothCost extends CostImpl {
 
     @Override
     public AborothCost copy() {
-        return new AborothCost();
+        return new AborothCost(this);
     }
 }

Mage.Sets/src/mage/cards/a/AdamaroFirstToDesire.java

@@ -43,6 +43,7 @@ public final class AdamaroFirstToDesire extends CardImpl {
 }
 
 class MostCardsInOpponentsHandCount implements DynamicValue {
+
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
         int maxCards = 0;
@@ -59,7 +60,7 @@ class MostCardsInOpponentsHandCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public MostCardsInOpponentsHandCount copy() {
         return new MostCardsInOpponentsHandCount();
     }
 

Mage.Sets/src/mage/cards/a/AlphaStatus.java

@@ -72,7 +72,7 @@ class AlphaStatusDynamicValue implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public AlphaStatusDynamicValue copy() {
         return new AlphaStatusDynamicValue();
     }
 

Mage.Sets/src/mage/cards/a/Anathemancer.java

@@ -69,7 +69,7 @@ class AnathemancerCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public AnathemancerCount copy() {
         return new AnathemancerCount();
     }
 

Mage.Sets/src/mage/cards/a/AncientOoze.java

@@ -61,7 +61,7 @@ class AncientOozePowerToughnessValue implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public AncientOozePowerToughnessValue copy() {
         return new AncientOozePowerToughnessValue();
     }
 

Mage.Sets/src/mage/cards/a/AspectOfWolf.java

@@ -59,12 +59,11 @@ class HalfForestsDownCount implements DynamicValue {
 
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
-        int amount = game.getBattlefield().countAll(filter, sourceAbility.getControllerId(), game) / 2;
-        return amount;
+        return game.getBattlefield().countAll(filter, sourceAbility.getControllerId(), game) / 2;
     }
 
     @Override
-    public DynamicValue copy() {
+    public HalfForestsDownCount copy() {
         return new HalfForestsDownCount();
     }
 
@@ -94,7 +93,7 @@ class HalfForestsUpCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public HalfForestsUpCount copy() {
         return new HalfForestsUpCount();
     }
 

Mage.Sets/src/mage/cards/b/BurdenOfGreed.java

@@ -54,7 +54,7 @@ class BurdenOfGreedCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public BurdenOfGreedCount copy() {
         return new BurdenOfGreedCount();
     }
 

Mage.Sets/src/mage/cards/c/ChildrenOfKorlis.java

@@ -60,7 +60,7 @@ class SourceControllerLostLifeCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public SourceControllerLostLifeCount copy() {
         return new SourceControllerLostLifeCount();
     }
 

Mage.Sets/src/mage/cards/c/CitadelOfPain.java

@@ -27,10 +27,10 @@ public final class CitadelOfPain extends CardImpl {
     public CitadelOfPain(UUID ownerId, CardSetInfo setInfo) {
         super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{R}");
 
+        // At the beginning of each player's end step, Citadel of Pain deals X damage to that player, where X is the number of untapped lands they control.
         TriggeredAbility triggered = new OnEventTriggeredAbility(GameEvent.EventType.END_TURN_STEP_PRE,
                 "beginning of the end step", true,
                 new CitadelOfPainEffect());
-        // At the beginning of each player's end step, Citadel of Pain deals X damage to that player, where X is the number of untapped lands they control.
         this.addAbility(triggered);
     }
 
@@ -48,11 +48,6 @@ class CitadelOfPainEffect extends OneShotEffect {
 
     private static final FilterPermanent filter = new FilterControlledLandPermanent();
 
-    @Override
-    public String getText(Mode mode) {
-        return "{this} deals X damage to that player, where X is the number of untapped lands they control.";
-    }
-
     static {
         filter.add(TappedPredicate.UNTAPPED);
     }
@@ -61,8 +56,8 @@ class CitadelOfPainEffect extends OneShotEffect {
         super(Outcome.Damage);
     }
 
-    public CitadelOfPainEffect(Outcome outcome) {
-        super(outcome);
+    private CitadelOfPainEffect(final CitadelOfPainEffect effect) {
+        super(effect);
     }
 
     @Override
@@ -77,7 +72,12 @@ class CitadelOfPainEffect extends OneShotEffect {
     }
 
     @Override
-    public Effect copy() {
-        return new CitadelOfPainEffect();
+    public CitadelOfPainEffect copy() {
+        return new CitadelOfPainEffect(this);
+    }
+
+    @Override
+    public String getText(Mode mode) {
+        return "{this} deals X damage to that player, where X is the number of untapped lands they control.";
     }
 }

Mage.Sets/src/mage/cards/c/ConquerorsFlail.java

@@ -56,12 +56,6 @@ public final class ConquerorsFlail extends CardImpl {
 
 class ConquerorsFlailColorCount implements DynamicValue {
 
-    public ConquerorsFlailColorCount() {
-    }
-
-    public ConquerorsFlailColorCount(final ConquerorsFlailColorCount dynamicValue) {
-    }
-
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
         Player controller = game.getPlayer(sourceAbility.getControllerId());
@@ -105,7 +99,7 @@ class ConquerorsFlailColorCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public ConquerorsFlailColorCount copy() {
         return new ConquerorsFlailColorCount();
     }
 }

Mage.Sets/src/mage/cards/c/CrimsonHonorGuard.java

@@ -62,9 +62,8 @@ class CrimsonHonorGuardEffect extends OneShotEffect {
         super(Outcome.Damage);
     }
 
-    @Override
-    public Effect copy() {
-        return new CrimsonHonorGuardEffect();
+    private CrimsonHonorGuardEffect(final CrimsonHonorGuardEffect effect) {
+        super(effect);
     }
 
     @Override
@@ -84,4 +83,9 @@ class CrimsonHonorGuardEffect extends OneShotEffect {
     public String getText(Mode mode) {
         return "{this} deals 4 damage to that player unless they control a commander";
     }
+
+    @Override
+    public CrimsonHonorGuardEffect copy() {
+        return new CrimsonHonorGuardEffect(this);
+    }
 }

Mage.Sets/src/mage/cards/c/Curfew.java

@@ -46,6 +46,10 @@ class CurfewEffect extends OneShotEffect {
         staticText = "Each player returns a creature they control to its owner's hand";
     }
 
+    private CurfewEffect(final CurfewEffect effect) {
+        super(effect);
+    }
+
     @Override
     public boolean apply(Game game, Ability source) {
         game.informPlayers("Each player returns a creature they control to its owner's hand");
@@ -64,7 +68,7 @@ class CurfewEffect extends OneShotEffect {
     }
 
     @Override
-    public Effect copy() {
-        return new CurfewEffect();
+    public CurfewEffect copy() {
+        return new CurfewEffect(this);
     }
 }

Mage.Sets/src/mage/cards/d/DemonicAppetite.java

@@ -51,17 +51,3 @@ public final class DemonicAppetite extends CardImpl {
         return new DemonicAppetite(this);
     }
 }
-
-class DemonicAppetiteEffect extends SacrificeTargetEffect {
-
-    DemonicAppetiteEffect() {
-        super();
-        staticText = "sacrifice a creature";
-    }
-
-    @Override
-    public DemonicAppetiteEffect copy() {
-        return new DemonicAppetiteEffect();
-    }
-
-}

Mage.Sets/src/mage/cards/d/DyingWish.java

@@ -78,7 +78,7 @@ class DyingWishAttachedPermanentPowerCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public DyingWishAttachedPermanentPowerCount copy() {
         return new DyingWishAttachedPermanentPowerCount();
     }
 

Mage.Sets/src/mage/cards/e/ElvishHouseParty.java

@@ -62,7 +62,7 @@ class CurrentHourCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public CurrentHourCount copy() {
         return new CurrentHourCount();
     }
 

Mage.Sets/src/mage/cards/e/EmissaryOfDespair.java

@@ -58,7 +58,7 @@ class EmissaryOfDespairCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public EmissaryOfDespairCount copy() {
         return new EmissaryOfDespairCount();
     }
 

Mage.Sets/src/mage/cards/e/EndlessRanksOfTheDead.java

@@ -57,7 +57,7 @@ class HalfZombiesCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public HalfZombiesCount copy() {
         return new HalfZombiesCount();
     }
 

Mage.Sets/src/mage/cards/e/EnterTheInfinite.java

@@ -62,7 +62,7 @@ class CardsInControllerLibraryCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public CardsInControllerLibraryCount copy() {
         return new CardsInControllerLibraryCount();
     }
 

Mage.Sets/src/mage/cards/k/KarplusanMinotaur.java

@@ -134,6 +134,10 @@ class KarplusanMinotaurCost extends CostImpl {
         this.text = "Flip a coin";
     }
 
+    private KarplusanMinotaurCost(final KarplusanMinotaurCost cost) {
+        super(cost);
+    }
+
     @Override
     public boolean pay(Ability ability, Game game, Ability source, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
@@ -158,7 +162,7 @@ class KarplusanMinotaurCost extends CostImpl {
 
     @Override
     public KarplusanMinotaurCost copy() {
-        return new KarplusanMinotaurCost();
+        return new KarplusanMinotaurCost(this);
     }
 }
 

Mage.Sets/src/mage/cards/k/KinsbaileBorderguard.java

@@ -73,7 +73,7 @@ class AllCountersCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public AllCountersCount copy() {
         return new AllCountersCount();
     }
 

Mage.Sets/src/mage/cards/l/Leveler.java

@@ -50,9 +50,8 @@ class LevelerExileLibraryEffect extends OneShotEffect {
         staticText = "exile all cards from your library";
     }
 
-    @Override
-    public LevelerExileLibraryEffect copy() {
-        return new LevelerExileLibraryEffect();
+    private LevelerExileLibraryEffect(final LevelerExileLibraryEffect effect) {
+        super(effect);
     }
 
     @Override
@@ -66,4 +65,9 @@ class LevelerExileLibraryEffect extends OneShotEffect {
         }
         return false;
     }
+
+    @Override
+    public LevelerExileLibraryEffect copy() {
+        return new LevelerExileLibraryEffect(this);
+    }
 }

Mage.Sets/src/mage/cards/l/LordOfExtinction.java

@@ -59,7 +59,7 @@ class LordOfExtinctionDynamicCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public LordOfExtinctionDynamicCount copy() {
         return new LordOfExtinctionDynamicCount();
     }
 

Mage.Sets/src/mage/cards/l/LostOrderOfJarkeld.java

@@ -69,7 +69,7 @@ class CreaturesControlledByChosenPlayer implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public CreaturesControlledByChosenPlayer copy() {
         return new CreaturesControlledByChosenPlayer();
     }
 

Mage.Sets/src/mage/cards/m/ManaCache.java

@@ -66,9 +66,13 @@ class ManaCacheEffect extends OneShotEffect {
         this.staticText = "put a charge counter on {this} for each untapped land that player controls";
     }
 
+    private ManaCacheEffect(final ManaCacheEffect effect) {
+        super(effect);
+    }
+
     @Override
-    public Effect copy() {
-        return new ManaCacheEffect();
+    public ManaCacheEffect copy() {
+        return new ManaCacheEffect(this);
     }
 
     @Override

Mage.Sets/src/mage/cards/m/MercadiasDownfall.java

@@ -44,12 +44,11 @@ public final class MercadiasDownfall extends CardImpl {
         return new MercadiasDownfall(this);
     }
 
-    class DefendersNonBasicLandCount implements DynamicValue {
-
-        UUID defenderId;
+    static class DefendersNonBasicLandCount implements DynamicValue {
         
         @Override
         public int calculate(Game game, Ability sourceAbility, Effect effect) {
+            UUID defenderId;
             for (CombatGroup group : game.getCombat().getGroups()) {
                 defenderId = group.getDefenderId();
                 if (group.isDefenderIsPlaneswalker()) {
@@ -67,7 +66,7 @@ public final class MercadiasDownfall extends CardImpl {
         }
 
         @Override
-        public DynamicValue copy() {
+        public DefendersNonBasicLandCount copy() {
             return new DefendersNonBasicLandCount();
         }
 

Mage.Sets/src/mage/cards/m/Monsoon.java

@@ -56,8 +56,8 @@ class MonsoonEffect extends OneShotEffect {
         this.staticText = "tap all untapped Islands that player controls and {this} deals X damage to the player, where X is the number of Islands tapped this way";
     }
 
-    public MonsoonEffect(Outcome outcome) {
-        super(outcome);
+    private MonsoonEffect(final MonsoonEffect effect) {
+        super(effect);
     }
 
     @Override
@@ -76,7 +76,7 @@ class MonsoonEffect extends OneShotEffect {
     }
 
     @Override
-    public Effect copy() {
-        return new MonsoonEffect();
+    public MonsoonEffect copy() {
+        return new MonsoonEffect(this);
     }
 }

Mage.Sets/src/mage/cards/m/MurderInvestigation.java

@@ -72,7 +72,7 @@ class AttachedPermanentPowerCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public AttachedPermanentPowerCount copy() {
         return new AttachedPermanentPowerCount();
     }
 

Mage.Sets/src/mage/cards/n/Nyxathid.java

@@ -68,7 +68,7 @@ class CardsInChosenPlayerHandCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public CardsInChosenPlayerHandCount copy() {
         return new CardsInChosenPlayerHandCount();
     }
 

Mage.Sets/src/mage/cards/p/Pallimud.java

@@ -70,7 +70,7 @@ class AnathemancerCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public AnathemancerCount copy() {
         return new AnathemancerCount();
     }
 

Mage.Sets/src/mage/cards/p/ParadigmShift.java

@@ -25,7 +25,7 @@ public final class ParadigmShift extends CardImpl {
         super(ownerId,setInfo,new CardType[]{CardType.SORCERY},"{1}{U}");
 
         // Exile all cards from your library. Then shuffle your graveyard into your library.
-        this.getSpellAbility().addEffect(new ExileLibraryEffect());
+        this.getSpellAbility().addEffect(new ParadigmShiftExileLibraryEffect());
     }
 
     private ParadigmShift(final ParadigmShift card) {
@@ -38,16 +38,20 @@ public final class ParadigmShift extends CardImpl {
     }
 }
 
-class ExileLibraryEffect extends OneShotEffect {
+class ParadigmShiftExileLibraryEffect extends OneShotEffect {
 
-    public ExileLibraryEffect() {
+    public ParadigmShiftExileLibraryEffect() {
         super(Outcome.Exile);
         staticText = "Exile all cards from your library. Then shuffle your graveyard into your library";
     }
 
+    private ParadigmShiftExileLibraryEffect(final ParadigmShiftExileLibraryEffect effect) {
+        super(effect);
+    }
+
     @Override
-    public ExileLibraryEffect copy() {
-        return new ExileLibraryEffect();
+    public ParadigmShiftExileLibraryEffect copy() {
+        return new ParadigmShiftExileLibraryEffect(this);
     }
 
     @Override

Mage.Sets/src/mage/cards/p/PredatorsRapport.java

@@ -53,7 +53,7 @@ class TargetPermanentPowerPlusToughnessCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public TargetPermanentPowerPlusToughnessCount copy() {
         return new TargetPermanentPowerPlusToughnessCount();
     }
 

Mage.Sets/src/mage/cards/p/PrimeSpeakerZegana.java

@@ -68,7 +68,7 @@ class GreatestPowerCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public GreatestPowerCount copy() {
         return new GreatestPowerCount();
     }
 

Mage.Sets/src/mage/cards/p/PsychicVortex.java

@@ -1,4 +1,3 @@
-
 package mage.cards.p;
 
 import java.util.UUID;
@@ -58,6 +57,10 @@ class PsychicVortexCost extends CostImpl {
         this.text = "Draw a card";
     }
 
+    private PsychicVortexCost(final PsychicVortexCost cost) {
+        super(cost);
+    }
+
     @Override
     public boolean pay(Ability ability, Game game, Ability source, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
@@ -77,6 +80,6 @@ class PsychicVortexCost extends CostImpl {
     
     @Override
     public PsychicVortexCost copy() {
-        return new PsychicVortexCost();
+        return new PsychicVortexCost(this);
     }
 }

Mage.Sets/src/mage/cards/r/RighteousAuthority.java

@@ -59,6 +59,7 @@ public final class RighteousAuthority extends CardImpl {
 
 
 class CardsInEnchantedControllerHandCount implements DynamicValue {
+
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
         if (sourceAbility != null) {
@@ -77,7 +78,7 @@ class CardsInEnchantedControllerHandCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public CardsInEnchantedControllerHandCount copy() {
         return new CardsInEnchantedControllerHandCount();
     }
 

Mage.Sets/src/mage/cards/r/RuneflareTrap.java

@@ -61,7 +61,7 @@ class TargetPlayerCardsInHandCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public TargetPlayerCardsInHandCount copy() {
         return new TargetPlayerCardsInHandCount();
     }
 

Mage.Sets/src/mage/cards/s/SaprazzanBailiff.java

@@ -64,9 +64,13 @@ class SaprazzanBailiffEffect extends OneShotEffect {
         staticText = "exile all artifact and enchantment cards from all graveyards";
     }
 
+    private SaprazzanBailiffEffect(final SaprazzanBailiffEffect effect) {
+        super(effect);
+    }
+
     @Override
     public SaprazzanBailiffEffect copy() {
-        return new SaprazzanBailiffEffect();
+        return new SaprazzanBailiffEffect(this);
     }
 
     @Override

Mage.Sets/src/mage/cards/s/SewerNemesis.java

@@ -72,7 +72,7 @@ class CardsInTargetOpponentsGraveyardCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public CardsInTargetOpponentsGraveyardCount copy() {
         return new CardsInTargetOpponentsGraveyardCount();
     }
 

Mage.Sets/src/mage/cards/s/ShelteringAncient.java

@@ -62,6 +62,10 @@ class ShelteringAncientCost extends CostImpl {
         this.text = "Put a +1/+1 counter on a creature an opponent controls";
     }
 
+    private ShelteringAncientCost(final ShelteringAncientCost cost) {
+        super(cost);
+    }
+
     @Override
     public boolean pay(Ability ability, Game game, Ability source, UUID controllerId, boolean noMana, Cost costToPay) {
         Player controller = game.getPlayer(controllerId);
@@ -86,6 +90,6 @@ class ShelteringAncientCost extends CostImpl {
 
     @Override
     public ShelteringAncientCost copy() {
-        return new ShelteringAncientCost();
+        return new ShelteringAncientCost(this);
     }
 }

Mage.Sets/src/mage/cards/s/SoullessOne.java

@@ -67,7 +67,7 @@ class SoullessOneDynamicCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public SoullessOneDynamicCount copy() {
         return new SoullessOneDynamicCount();
     }
     

Mage.Sets/src/mage/cards/s/SpellRupture.java

@@ -102,7 +102,7 @@ class GreatestPowerCountCreatureYouControl implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public GreatestPowerCountCreatureYouControl copy() {
         return new GreatestPowerCountCreatureYouControl();
     }
 

Mage.Sets/src/mage/cards/s/StormEntity.java

@@ -62,7 +62,7 @@ class OtherSpellsCastThisTurnCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public OtherSpellsCastThisTurnCount copy() {
         return new OtherSpellsCastThisTurnCount();
     }
 

Mage.Sets/src/mage/cards/s/SupremeLeaderSnoke.java

@@ -104,7 +104,7 @@ class OpponentNoncombatLostLifeCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public OpponentNoncombatLostLifeCount copy() {
         return new OpponentNoncombatLostLifeCount();
     }
 

Mage.Sets/src/mage/cards/t/TamiyoTheMoonSage.java

@@ -77,7 +77,7 @@ class TappedCreaturesControlledByTargetCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public TappedCreaturesControlledByTargetCount copy() {
         return new TappedCreaturesControlledByTargetCount();
     }
 

Mage.Sets/src/mage/cards/t/TerraRavager.java

@@ -68,7 +68,7 @@ class TerraRavagerLandCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public TerraRavagerLandCount copy() {
         return new TerraRavagerLandCount();
     }
 

Mage.Sets/src/mage/cards/u/UmbraStalker.java

@@ -66,7 +66,7 @@ class ChromaUmbraStalkerCount implements DynamicValue {
     }
 
     @Override
-    public DynamicValue copy() {
+    public ChromaUmbraStalkerCount copy() {
         return new ChromaUmbraStalkerCount();
     }
 

Mage.Sets/src/mage/cards/u/UrborgJustice.java

@@ -44,6 +44,15 @@ public final class UrborgJustice extends CardImpl {
 
 class UrborgJusticeDynamicValue implements DynamicValue {
 
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        CreaturesDiedWatcher watcher = game.getState().getWatcher(CreaturesDiedWatcher.class);
+        if (watcher != null) {
+            return watcher.getAmountOfCreaturesDiedThisTurnByOwner(sourceAbility.getControllerId());
+        }
+        return 0;
+    }
+
     @Override
     public UrborgJusticeDynamicValue copy() {
         return new UrborgJusticeDynamicValue();
@@ -58,13 +67,4 @@ class UrborgJusticeDynamicValue implements DynamicValue {
     public String getMessage() {
         return "creature put into your graveyard from the battlefield this turn";
     }
-
-    @Override
-    public int calculate(Game game, Ability sourceAbility, Effect effect) {
-        CreaturesDiedWatcher watcher = game.getState().getWatcher(CreaturesDiedWatcher.class);
-        if (watcher != null) {
-            return watcher.getAmountOfCreaturesDiedThisTurnByOwner(sourceAbility.getControllerId());
-        }
-        return 0;
-    }
 }

Mage.Sets/src/mage/cards/w/WolfOfDevilsBreach.java

@@ -1,4 +1,3 @@
-
 package mage.cards.w;
 
 import java.util.UUID;
@@ -40,7 +39,7 @@ public final class WolfOfDevilsBreach extends CardImpl {
         Costs toPay = new CostsImpl<>();
         toPay.add(new ManaCostsImpl<>("{1}{R}"));
         toPay.add(new DiscardCardCost());
-        Ability ability = new AttacksTriggeredAbility(new DoIfCostPaid(new DamageTargetEffect(new WolfOfDevilsBreachDiscardCostCardConvertedMana()), toPay,
+        Ability ability = new AttacksTriggeredAbility(new DoIfCostPaid(new DamageTargetEffect(new WolfOfDevilsBreachDiscardCostCardConvertedManaCount()), toPay,
                 "Pay {1}{R} and discard a card to let {this} do damage to target creature or planeswalker equal to the discarded card's mana value?", true), false,
                 "Whenever {this} attacks, you may pay {1}{R} and discard a card. If you do, {this} deals damage to target creature or planeswalker "
                 + "equal to the discarded card's mana value.");
@@ -58,7 +57,7 @@ public final class WolfOfDevilsBreach extends CardImpl {
     }
 }
 
-class WolfOfDevilsBreachDiscardCostCardConvertedMana implements DynamicValue {
+class WolfOfDevilsBreachDiscardCostCardConvertedManaCount implements DynamicValue {
 
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
@@ -84,8 +83,8 @@ class WolfOfDevilsBreachDiscardCostCardConvertedMana implements DynamicValue {
     }
 
     @Override
-    public WolfOfDevilsBreachDiscardCostCardConvertedMana copy() {
-        return new WolfOfDevilsBreachDiscardCostCardConvertedMana();
+    public WolfOfDevilsBreachDiscardCostCardConvertedManaCount copy() {
+        return new WolfOfDevilsBreachDiscardCostCardConvertedManaCount();
     }
 
     @Override

Mage.Tests/src/test/java/org/mage/test/serverside/base/impl/CardTestPlayerAPIImpl.java

@@ -687,7 +687,7 @@ public abstract class CardTestPlayerAPIImpl extends MageTestPlayerBase implement
                 CardInfo cardInfo = CardRepository.instance.findCard(cardName);
                 Card card = cardInfo != null ? cardInfo.getCard() : null;
                 if (card == null) {
-                    throw new AssertionError("Couldn't find a card: " + cardName);
+                    throw new AssertionError("Couldn't find a card in db: " + cardName);
                 }
                 cards.add(card);
 

Mage/src/main/java/mage/abilities/costs/Cost.java

@@ -3,11 +3,12 @@ package mage.abilities.costs;
 import mage.abilities.Ability;
 import mage.game.Game;
 import mage.target.Targets;
+import mage.util.Copyable;
 
 import java.io.Serializable;
 import java.util.UUID;
 
-public interface Cost extends Serializable {
+public interface Cost extends Serializable, Copyable<Cost> {
 
     UUID getId();
 

Mage/src/main/java/mage/abilities/costs/CostImpl.java

@@ -1,4 +1,3 @@
-
 package mage.abilities.costs;
 
 import java.util.UUID;
@@ -72,5 +71,4 @@ public abstract class CostImpl implements Cost {
     public UUID getId() {
         return this.id;
     }
-
 }

Mage/src/main/java/mage/abilities/costs/OptionalAdditionalCost.java

@@ -5,7 +5,7 @@ import mage.util.Copyable;
 /**
  * @author LevelX2
  */
-public interface OptionalAdditionalCost extends Cost, Copyable<OptionalAdditionalCost> {
+public interface OptionalAdditionalCost extends Cost {
 
     String getName();
 
@@ -77,4 +77,6 @@ public interface OptionalAdditionalCost extends Cost, Copyable<OptionalAdditiona
      */
     int getActivateCount();
 
+    @Override
+    OptionalAdditionalCost copy();
 }

Mage/src/main/java/mage/abilities/dynamicvalue/DynamicValue.java

@@ -3,11 +3,19 @@ package mage.abilities.dynamicvalue;
 import mage.abilities.Ability;
 import mage.abilities.effects.Effect;
 import mage.game.Game;
+import mage.util.Copyable;
 
 import java.io.Serializable;
 
-public interface DynamicValue extends Serializable {
+/**
+ * Dynamic value can be called multiple times from different places, so don't use inner/changeable fields. If you
+ * use it then think x100 times and override Copy method with copy constructor.
+ */
+public interface DynamicValue extends Serializable, Copyable<DynamicValue> {
+
     int calculate(Game game, Ability sourceAbility, Effect effect);
+
     DynamicValue copy();
+
     String getMessage();
 }

Mage/src/main/java/mage/abilities/dynamicvalue/common/TargetPermanenToughnessValue.java

@@ -1,57 +0,0 @@
-
-
-package mage.abilities.dynamicvalue.common;
-
-import mage.abilities.Ability;
-import mage.abilities.dynamicvalue.DynamicValue;
-import mage.abilities.effects.Effect;
-import mage.constants.Zone;
-import mage.game.Game;
-import mage.game.permanent.Permanent;
-
-import java.io.ObjectStreamException;
-
-/**
- *
- * @author LevelX2
- */
-
-public class TargetPermanenToughnessValue implements DynamicValue {
-    
-    private static final TargetPermanenToughnessValue instance =  new TargetPermanenToughnessValue();
-    
-    private Object readResolve() throws ObjectStreamException {
-        return instance;
-    }   
-    
-    public static TargetPermanenToughnessValue getInstance() {
-        return instance;
-    }
-    
-    @Override
-    public int calculate(Game game, Ability sourceAbility, Effect effect) {
-        Permanent sourcePermanent = game.getPermanent(sourceAbility.getFirstTarget());
-        if (sourcePermanent == null) {
-            sourcePermanent = (Permanent) game.getLastKnownInformation(sourceAbility.getFirstTarget(), Zone.BATTLEFIELD);
-        }
-        if (sourcePermanent != null) {
-            return sourcePermanent.getToughness().getValue();
-        }
-        return 0;
-    }
-
-    @Override
-    public TargetPermanenToughnessValue copy() {
-        return new TargetPermanenToughnessValue();
-    }
-
-    @Override
-    public String toString() {
-        return "X";
-    }
-
-    @Override
-    public String getMessage() {
-        return "target creature's toughness";
-    }
-}

Mage/src/main/java/mage/abilities/effects/Effect.java

@@ -6,6 +6,7 @@ import mage.constants.EffectType;
 import mage.constants.Outcome;
 import mage.game.Game;
 import mage.target.targetpointer.TargetPointer;
+import mage.util.Copyable;
 
 import java.io.Serializable;
 import java.util.UUID;
@@ -13,7 +14,7 @@ import java.util.UUID;
 /**
  * @author BetaSteward_at_googlemail.com
  */
-public interface Effect extends Serializable {
+public interface Effect extends Serializable, Copyable<Effect> {
 
     UUID getId();
 

Mage/src/main/java/mage/abilities/effects/OneShotEffect.java

@@ -19,5 +19,4 @@ public abstract class OneShotEffect extends EffectImpl {
     public OneShotEffect(final OneShotEffect effect) {
         super(effect);
     }
-
 }

Mage/src/main/java/mage/abilities/effects/common/ExileGraveyardAllTargetPlayerEffect.java

@@ -1,5 +1,3 @@
-
-
 package mage.abilities.effects.common;
 
 import mage.abilities.Ability;
@@ -21,9 +19,13 @@ public class ExileGraveyardAllTargetPlayerEffect extends OneShotEffect {
         staticText = "exile all cards from target player's graveyard";
     }
 
+    private ExileGraveyardAllTargetPlayerEffect(final ExileGraveyardAllTargetPlayerEffect effect) {
+        super(effect);
+    }
+
     @Override
     public ExileGraveyardAllTargetPlayerEffect copy() {
-        return new ExileGraveyardAllTargetPlayerEffect();
+        return new ExileGraveyardAllTargetPlayerEffect(this);
     }
 
     @Override

Mage/src/main/java/mage/abilities/effects/common/ExileSpellEffect.java

@@ -24,7 +24,7 @@ public class ExileSpellEffect extends OneShotEffect {
 
     @Override
     public ExileSpellEffect copy() {
-        return new ExileSpellEffect();
+        return new ExileSpellEffect(this);
     }
 
     @Override

Mage/src/main/java/mage/abilities/effects/common/SkipNextCombatEffect.java

@@ -1,42 +0,0 @@
-package mage.abilities.effects.common;
-
-import mage.abilities.Ability;
-import mage.abilities.effects.OneShotEffect;
-import mage.constants.Outcome;
-import mage.constants.TurnPhase;
-import mage.game.Game;
-import mage.game.turn.TurnMod;
-import mage.players.Player;
-
-/**
- *
- * @author escplan9 (Derek Monturo - dmontur1 at gmail dot com)
- */
-public class SkipNextCombatEffect extends OneShotEffect {
-    
-    public SkipNextCombatEffect() {
-        super(Outcome.Detriment);
-        staticText = "target opponent skips their next combat phase";
-    }
-
-    public SkipNextCombatEffect(SkipNextCombatEffect effect) {
-        super(effect);
-    }
-
-    @Override
-    public boolean apply(Game game, Ability source) {
-        if (targetPointer != null) {
-            Player player = game.getPlayer(targetPointer.getFirst(game, source));
-            if (player != null) {
-                game.getState().getTurnMods().add(new TurnMod(player.getId(), TurnPhase.COMBAT, null, true));
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public SkipNextCombatEffect copy() {
-        return new SkipNextCombatEffect();
-    }
-}

Mage/src/main/java/mage/abilities/effects/common/turn/ControlTargetPlayerNextTurnEffect.java

@@ -1,13 +1,13 @@
-
 package mage.abilities.effects.common.turn;
 
-import java.util.UUID;
 import mage.abilities.Ability;
 import mage.abilities.effects.OneShotEffect;
 import mage.constants.Outcome;
 import mage.game.Game;
 import mage.game.turn.TurnMod;
 
+import java.util.UUID;
+
 /**
  * @author nantuko
  */
@@ -35,6 +35,6 @@ public class ControlTargetPlayerNextTurnEffect extends OneShotEffect {
 
     @Override
     public ControlTargetPlayerNextTurnEffect copy() {
-        return new ControlTargetPlayerNextTurnEffect();
+        return new ControlTargetPlayerNextTurnEffect(this);
     }
 }

Mage/src/main/java/mage/abilities/keyword/MeleeAbility.java

@@ -1,4 +1,3 @@
-
 package mage.abilities.keyword;
 
 import java.util.*;
@@ -71,9 +70,19 @@ class MeleeWatcher extends Watcher {
 
 class MeleeDynamicValue implements DynamicValue {
 
-    private boolean valueChecked = false;
+    private boolean valueChecked;
     private int lockedInValue;
 
+    public MeleeDynamicValue() {
+        super();
+    }
+
+    protected MeleeDynamicValue(final MeleeDynamicValue dynamicValue) {
+        super();
+        valueChecked = dynamicValue.valueChecked;
+        lockedInValue = dynamicValue.lockedInValue;
+    }
+
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
         MeleeWatcher watcher = game.getState().getWatcher(MeleeWatcher.class);
@@ -89,7 +98,7 @@ class MeleeDynamicValue implements DynamicValue {
 
     @Override
     public MeleeDynamicValue copy() {
-        return new MeleeDynamicValue();
+        return new MeleeDynamicValue(this);
     }
 
     @Override