* Fixed check of dies attched triggered abilities not always triggering if attachment and attached object went to graveyard at the same time.

Mage.Tests/src/test/java/org/mage/test/cards/enchantments/SkullclampTest.java

@@ -0,0 +1,88 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package org.mage.test.cards.enchantments;
+
+import mage.constants.PhaseStep;
+import mage.constants.Zone;
+import org.junit.Test;
+import org.mage.test.serverside.base.CardTestPlayerBase;
+
+/**
+ *
+ * @author LevelX2
+ */
+public class SkullclampTest extends CardTestPlayerBase {
+
+    /**
+     * Skullclamp and the creature it's attached to are destroyed by same
+     * Pernicious Deed activation. AFAIK Skullclamp should trigger, but it
+     * doesn't.
+     *
+     * 400.7e Abilities of Auras that trigger when the enchanted permanent
+     * leaves the battlefield can find the new object that Aura became in its
+     * owners graveyard if it was put into that graveyard at the same time the
+     * enchanted permanent left the battlefield. It can also find the new object
+     * that Aura became in its owners graveyard as a result of being put there
+     * as a state-based action for not being attached to a permanent. (See rule
+     * 704.5n.)
+     *
+     */
+    @Test
+    public void testPerniciousDeed() {
+        // Equipped creature gets +1/-1.
+        // Whenever equipped creature dies, draw two cards.
+        // Equip {1}
+        addCard(Zone.BATTLEFIELD, playerA, "Skullclamp", 1);
+        addCard(Zone.BATTLEFIELD, playerA, "Silvercoat Lion", 1);
+        addCard(Zone.BATTLEFIELD, playerA, "Pillarfield Ox", 1);
+
+        addCard(Zone.BATTLEFIELD, playerA, "Island", 1);
+
+        addCard(Zone.BATTLEFIELD, playerB, "Swamp", 2);
+        // {X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with converted mana cost X or less.
+        addCard(Zone.BATTLEFIELD, playerB, "Pernicious Deed"); // Enchantment
+
+        activateAbility(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Equip", "Silvercoat Lion");
+
+        activateAbility(1, PhaseStep.POSTCOMBAT_MAIN, playerB, "{X},Sacrifice");
+        setChoice(playerB, "X=2");
+
+        setStopAt(1, PhaseStep.END_TURN);
+        execute();
+
+        assertGraveyardCount(playerA, "Skullclamp", 1);
+        assertGraveyardCount(playerA, "Silvercoat Lion", 1);
+
+        assertGraveyardCount(playerB, "Pernicious Deed", 1);
+
+        assertPermanentCount(playerA, "Pillarfield Ox", 1);
+
+        assertHandCount(playerA, 2);
+    }
+
+}

Mage/src/mage/abilities/common/DiesAttachedTriggeredAbility.java

@@ -1,14 +1,16 @@
 package mage.abilities.common;
 
-import mage.constants.Zone;
 import mage.abilities.TriggeredAbilityImpl;
 import mage.abilities.effects.Effect;
+import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.events.GameEvent;
 import mage.game.events.ZoneChangeEvent;
+import mage.game.permanent.Permanent;
 
 /**
  * "When enchanted/equipped creature dies" triggered ability
+ *
  * @author Loki
  */
 public class DiesAttachedTriggeredAbility extends TriggeredAbilityImpl {
@@ -30,7 +32,6 @@ public class DiesAttachedTriggeredAbility extends TriggeredAbilityImpl {
         this.diesRuleText = diesRuleText;
     }
 
-
     public DiesAttachedTriggeredAbility(final DiesAttachedTriggeredAbility ability) {
         super(ability);
         this.attachedDescription = ability.attachedDescription;
@@ -51,7 +52,19 @@ public class DiesAttachedTriggeredAbility extends TriggeredAbilityImpl {
     public boolean checkTrigger(GameEvent event, Game game) {
         if (((ZoneChangeEvent) event).isDiesEvent()) {
             ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
+            boolean triggered = false;
             if (zEvent.getTarget().getAttachments().contains(this.getSourceId())) {
+                triggered = true;
+            } else {
+                // If both (attachment and attached went to graveyard at the same time, the attachemnets can be already removed from the attached object.)
+                // So check here with the LKI of the enchantment
+                Permanent attachment = game.getPermanentOrLKIBattlefield(getSourceId());
+                if (attachment != null && attachment.getAttachedTo().equals(zEvent.getTargetId())
+                        && attachment.getAttachedToZoneChangeCounter() == zEvent.getTarget().getZoneChangeCounter(game)) {
+                    triggered = true;
+                }
+            }
+            if (triggered) {
                 for (Effect effect : getEffects()) {
                     effect.setValue("attachedTo", zEvent.getTarget());
                 }

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

@@ -109,6 +109,8 @@ public interface Permanent extends Card, Controllable {
 
     UUID getAttachedTo();
 
+    int getAttachedToZoneChangeCounter();
+
     void attachTo(UUID permanentId, Game game);
 
     boolean addAttachment(UUID permanentId, Game game);

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

@@ -115,6 +115,7 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
     protected Map<String, List<UUID>> connectedCards = new HashMap<>();
     protected HashSet<MageObjectReference> dealtDamageByThisTurn;
     protected UUID attachedTo;
+    protected int attachedToZoneChangeCounter;
     protected UUID pairedCard;
     protected Counters counters;
     protected List<Counter> markedDamage;
@@ -172,6 +173,7 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
         }
         this.counters = permanent.counters.copy();
         this.attachedTo = permanent.attachedTo;
+        this.attachedToZoneChangeCounter = permanent.attachedToZoneChangeCounter;
         this.minBlockedBy = permanent.minBlockedBy;
         this.maxBlockedBy = permanent.maxBlockedBy;
         this.transformed = permanent.transformed;
@@ -676,6 +678,11 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
         return attachedTo;
     }
 
+    @Override
+    public int getAttachedToZoneChangeCounter() {
+        return attachedToZoneChangeCounter;
+    }
+
     @Override
     public void addConnectedCard(String key, UUID connectedCard) {
         if (this.connectedCards.containsKey(key)) {
@@ -712,6 +719,7 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
             }
         }
         this.attachedTo = permanentId;
+        this.attachedToZoneChangeCounter = game.getState().getZoneChangeCounter(permanentId);
         for (Ability ability : this.getAbilities()) {
             for (Iterator<Effect> ite = ability.getEffects(game, EffectType.CONTINUOUS).iterator(); ite.hasNext();) {
                 ContinuousEffect effect = (ContinuousEffect) ite.next();