Test for Copied Gilded Drake reverting control when killed (#9198)

Mage.Sets/src/mage/cards/g/GildedDrake.java

@@ -72,24 +72,23 @@ class GildedDrakeEffect extends OneShotEffect {
 
     @Override
     public boolean apply(Game game, Ability source) {
-
         Player controller = game.getPlayer(source.getControllerId());
-        if (controller != null) {
+        if (controller == null) {
+            return false;
+        }
         Permanent sourceObject = game.getPermanent(source.getSourceId());
-            if (sourceObject != null) {
+        if (sourceObject == null) {
-                if (targetPointer.getFirst(game, source) != null) {
+            return false;
-                    Permanent targetPermanent = game.getPermanent(targetPointer.getFirst(game, source));
+        }
-                    if (targetPermanent != null) {
+
+        if (targetPointer.getFirst(game, source) == null || game.getPermanent(targetPointer.getFirst(game, source)) == null) {
+            sourceObject.sacrifice(source, game);
+            return true;
+        }
+
         ContinuousEffect effect = new ExchangeControlTargetEffect(Duration.EndOfGame, "", true);
         effect.setTargetPointer(targetPointer);
         game.addEffect(effect, source);
         return true;
     }
 }
-                sourceObject.sacrifice(source, game);
-            }
-            return true;
-        }
-        return false;
-    }
-}

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

@@ -84,18 +84,14 @@ class KikiJikiMirrorBreakerEffect extends OneShotEffect {
     @Override
     public boolean apply(Game game, Ability source) {
         Permanent permanent = getTargetPointer().getFirstTargetPermanentOrLKI(game, source);
-        if (permanent != null) {
+        if (permanent == null) {
+            return false;
+        }
+
         CreateTokenCopyTargetEffect effect = new CreateTokenCopyTargetEffect(source.getControllerId(), null, true);
         effect.setTargetPointer(new FixedTarget(permanent, game));
         effect.apply(game, source);
-            for (Permanent addedToken : effect.getAddedPermanents()) {
+        effect.sacrificeTokensCreatedAtNextEndStep(game, source);
-                SacrificeTargetEffect sacrificeEffect = new SacrificeTargetEffect("Sacrifice the token at the beginning of the next end step", source.getControllerId());
-                sacrificeEffect.setTargetPointer(new FixedTarget(addedToken.getId()));
-                game.addDelayedTriggeredAbility(new AtTheBeginOfNextEndStepDelayedTriggeredAbility(sacrificeEffect), source);
-            }
         return true;
     }
-
-        return false;
-    }
 }

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

@@ -18,6 +18,7 @@ import mage.filter.common.FilterControlledCreaturePermanent;
 import mage.filter.predicate.Predicates;
 import mage.filter.predicate.mageobject.AnotherPredicate;
 import mage.game.Game;
+import mage.game.permanent.Permanent;
 import mage.target.TargetPermanent;
 import mage.target.targetpointer.FixedTarget;
 
@@ -82,6 +83,11 @@ class ReflectionOfKikiJikiEffect extends OneShotEffect {
 
     @Override
     public boolean apply(Game game, Ability source) {
+        Permanent permanent = getTargetPointer().getFirstTargetPermanentOrLKI(game, source);
+        if (permanent == null) {
+            return false;
+        }
+
         CreateTokenCopyTargetEffect effect = new CreateTokenCopyTargetEffect(null, null, true);
         effect.setTargetPointer(new FixedTarget(source.getFirstTarget(), game));
         effect.apply(game, source);

Mage.Tests/src/test/java/org/mage/test/cards/control/ExchangeControlTest.java

@@ -5,6 +5,7 @@ import mage.constants.PhaseStep;
 import mage.constants.Zone;
 import mage.game.permanent.Permanent;
 import org.junit.Assert;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.mage.test.serverside.base.CardTestPlayerBase;
 
@@ -277,6 +278,56 @@ public class ExchangeControlTest extends CardTestPlayerBase {
         assertGraveyardCount(playerB, "Lightning Bolt", 1);
         assertGraveyardCount(playerB, "Silvercoat Lion", 1);
         assertGraveyardCount(playerA, "Gilded Drake", 1);
+    }
 
+    /**
+     * 1. Kiki-Jiki copied Gilded Drake.
+     * 2. Gilded Drake copy is exchanged for another creature.
+     * 3. After the exchange occurs, Gilded Drake is killed by any means.
+     * 4. Exchange creature is returned to previous controller (possible owner) during the next phase.
+     * <p>
+     * See https://github.com/magefree/mage/issues/8742
+     */
+    @Ignore
+    @Test
+    public void testGildedDrakeCopyExchange() {
+        addCard(Zone.BATTLEFIELD, playerA, "Kiki-Jiki, Mirror Breaker");
+        addCard(Zone.HAND, playerA, "Gilded Drake");
+        addCard(Zone.BATTLEFIELD, playerA, "Mountain", 2);
+        addCard(Zone.BATTLEFIELD, playerA, "Island", 2);
+
+        addCard(Zone.HAND, playerA, "Lightning Bolt", 2);
+
+        addCard(Zone.BATTLEFIELD, playerB, "Dwarven Trader"); // Exchange target
+        addCard(Zone.BATTLEFIELD, playerB, "Silvercoat Lion"); // Exchange target
+
+        setStrictChooseMode(true);
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Gilded Drake");
+        addTarget(playerA, "Dwarven Trader"); // Target for Gilded Drake
+        waitStackResolved(1, PhaseStep.PRECOMBAT_MAIN, true); // Skip the cast and grab the ETB
+
+        // Copy the drake
+        activateAbility(1, PhaseStep.PRECOMBAT_MAIN, playerA, "{T}", "Gilded Drake", "When {this}");
+        addTarget(playerA, "Silvercoat Lion"); // Target for Gilded Drake
+
+        waitStackResolved(1, PhaseStep.PRECOMBAT_MAIN);
+
+        // Destroy both of the Drakes
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Lightning Bolt");
+        addTarget(playerA, "Gilded Drake");
+        waitStackResolved(1, PhaseStep.PRECOMBAT_MAIN);
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Lightning Bolt");
+        addTarget(playerA, "Gilded Drake");
+
+        setStopAt(1, PhaseStep.END_TURN);
+        execute();
+        assertAllCommandsUsed();
+
+        assertPermanentCount(playerA, "Kiki-Jiki, Mirror Breaker", 1);
+        assertPermanentCount(playerA, "Dwarven Trader", 1);  // Original's exhange target
+        assertPermanentCount(playerA, "Silvercoat Lion", 1); // Copy's exchange target
+
+        assertPermanentCount(playerA, "Gilded Drake", 0);
+        assertPermanentCount(playerB, "Gilded Drake", 0);
     }
 }

Mage/src/main/java/mage/abilities/effects/common/continuous/ExchangeControlTargetEffect.java

@@ -28,7 +28,7 @@ public class ExchangeControlTargetEffect extends ContinuousEffectImpl {
     private boolean withSecondTarget;
     private boolean destroyAttachedAuras;
     private Map<UUID, Integer> zoneChangeCounter = new HashMap<>();
-    private Map<UUID, UUID> lockedControllers = new HashMap<>();
+    private Map<UUID, UUID> lockedControllers = new HashMap<>();  // Controllers for each permanent that is enforced by this effect
 
     public ExchangeControlTargetEffect(Duration duration, String rule) {
         this(duration, rule, false);
@@ -102,9 +102,11 @@ public class ExchangeControlTargetEffect extends ContinuousEffectImpl {
                 discard();
                 return;
             }
+            // Meant to be swapped since this enforced the
             this.lockedControllers.put(permanent1.getId(), permanent2.getControllerId());
-            this.zoneChangeCounter.put(permanent1.getId(), permanent1.getZoneChangeCounter(game));
             this.lockedControllers.put(permanent2.getId(), permanent1.getControllerId());
+
+            this.zoneChangeCounter.put(permanent1.getId(), permanent1.getZoneChangeCounter(game));
             this.zoneChangeCounter.put(permanent2.getId(), permanent2.getZoneChangeCounter(game));
         } else {
             // discard if there are less than 2 permanents
@@ -118,7 +120,7 @@ public class ExchangeControlTargetEffect extends ContinuousEffectImpl {
         for (Map.Entry<UUID, Integer> entry : zoneChangeCounter.entrySet()) {
             Permanent permanent = game.getPermanent(entry.getKey());
             if (permanent == null || permanent.getZoneChangeCounter(game) != entry.getValue()) {
-                // controll effect cease if the same permanent is no longer on the battlefield
+                // Control effect cease if the same permanent is no longer on the battlefield
                 toDelete.add(entry.getKey());
                 continue;
             }
@@ -138,6 +140,7 @@ public class ExchangeControlTargetEffect extends ContinuousEffectImpl {
         if (!toDelete.isEmpty()) {
             for (UUID uuid : toDelete) {
                 zoneChangeCounter.remove(uuid);
+                lockedControllers.remove(uuid);
             }
             if (zoneChangeCounter.isEmpty()) {
                 discard();