diff --git a/Mage.Sets/src/mage/cards/a/AcidicDagger.java b/Mage.Sets/src/mage/cards/a/AcidicDagger.java
new file mode 100644
index 00000000000..a33f2c051fe
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/a/AcidicDagger.java
@@ -0,0 +1,152 @@
+package mage.cards.a;
+
+import mage.abilities.Ability;
+import mage.abilities.DelayedTriggeredAbility;
+import mage.abilities.condition.common.BeforeBlockersAreDeclaredCondition;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.costs.mana.GenericManaCost;
+import mage.abilities.decorator.ConditionalActivatedAbility;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.CreateDelayedTriggeredAbilityEffect;
+import mage.abilities.effects.common.DestroyTargetEffect;
+import mage.abilities.effects.common.SacrificeSourceEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.Predicates;
+import mage.game.Game;
+import mage.game.events.DamagedEvent;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetCreaturePermanent;
+import mage.target.targetpointer.FixedTarget;
+
+import java.util.UUID;
+
+/**
+ * @author Cguy7777
+ */
+public final class AcidicDagger extends CardImpl {
+
+    public AcidicDagger(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT}, "{4}");
+
+        // {4}, {tap}: Whenever target creature deals combat damage to a non-Wall creature this turn,
+        // destroy that non-Wall creature. When the targeted creature leaves the battlefield this turn,
+        // sacrifice Acidic Dagger. Activate this ability only before blockers are declared.
+        Ability ability = new ConditionalActivatedAbility(
+                new CreateDelayedTriggeredAbilityEffect(new AcidicDaggerDestroyNonWallAbility()),
+                new GenericManaCost(4),
+                BeforeBlockersAreDeclaredCondition.instance);
+        ability.addCost(new TapSourceCost());
+        ability.addTarget(new TargetCreaturePermanent());
+        ability.addEffect(new CreateDelayedTriggeredAbilityEffect(new AcidicDaggerSacrificeSourceAbility()));
+
+        this.addAbility(ability);
+    }
+
+    private AcidicDagger(final AcidicDagger card) {
+        super(card);
+    }
+
+    @Override
+    public AcidicDagger copy() {
+        return new AcidicDagger(this);
+    }
+}
+
+class AcidicDaggerDestroyNonWallAbility extends DelayedTriggeredAbility {
+
+    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("non-Wall creature");
+
+    static {
+        filter.add(Predicates.not(SubType.WALL.getPredicate()));
+    }
+
+    AcidicDaggerDestroyNonWallAbility() {
+        super(new DestroyTargetEffect(), Duration.EndOfTurn, false);
+    }
+
+    protected AcidicDaggerDestroyNonWallAbility(AcidicDaggerDestroyNonWallAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.DAMAGED_PERMANENT;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        Permanent damagedPermanent = game.getPermanent(event.getTargetId());
+        Permanent attackingPermanent = game.getPermanent(event.getSourceId());
+        Permanent targetedPermanent = game.getPermanent(this.getTargets().getFirstTarget());
+
+        if (damagedPermanent == null
+                || attackingPermanent == null
+                || targetedPermanent == null
+                || !filter.match(damagedPermanent, game)
+                || !((DamagedEvent) event).isCombatDamage()
+                || !attackingPermanent.getId().equals(targetedPermanent.getId())) {
+            return false;
+        }
+
+        this.getTargets().clear(); // else ability fizzles if target creature died
+        for (Effect effect : this.getEffects()) {
+            effect.setTargetPointer(new FixedTarget(damagedPermanent, game));
+        }
+        return true;
+    }
+
+    @Override
+    public AcidicDaggerDestroyNonWallAbility copy() {
+        return new AcidicDaggerDestroyNonWallAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever target creature deals combat damage to a non-Wall creature this turn, destroy that non-Wall creature.";
+    }
+}
+
+// Based on HeartWolfDelayedTriggeredAbility
+class AcidicDaggerSacrificeSourceAbility extends DelayedTriggeredAbility {
+
+    AcidicDaggerSacrificeSourceAbility() {
+        super(new SacrificeSourceEffect(), Duration.EndOfTurn, false);
+    }
+
+    protected AcidicDaggerSacrificeSourceAbility(AcidicDaggerSacrificeSourceAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ZONE_CHANGE;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
+        if (zEvent.getFromZone() == Zone.BATTLEFIELD && zEvent.getTarget() != null && zEvent.getTargetId().equals(getTargets().getFirstTarget())) {
+            this.getTargets().clear(); // else ability fizzles because target creature died
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public AcidicDaggerSacrificeSourceAbility copy() {
+        return new AcidicDaggerSacrificeSourceAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "When the targeted creature leaves the battlefield this turn, sacrifice {this}.";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/Mirage.java b/Mage.Sets/src/mage/sets/Mirage.java
index 5b3f59aafee..a80735ac120 100644
--- a/Mage.Sets/src/mage/sets/Mirage.java
+++ b/Mage.Sets/src/mage/sets/Mirage.java
@@ -26,6 +26,7 @@ public final class Mirage extends ExpansionSet {
         this.ratioBoosterMythic = 0;
 
         cards.add(new SetCardInfo("Abyssal Hunter", 103, Rarity.RARE, mage.cards.a.AbyssalHunter.class));
+        cards.add(new SetCardInfo("Acidic Dagger", 291, Rarity.RARE, mage.cards.a.AcidicDagger.class));
         cards.add(new SetCardInfo("Afiya Grove", 205, Rarity.RARE, mage.cards.a.AfiyaGrove.class));
         cards.add(new SetCardInfo("Afterlife", 1, Rarity.UNCOMMON, mage.cards.a.Afterlife.class));
         cards.add(new SetCardInfo("Agility", 154, Rarity.COMMON, mage.cards.a.Agility.class));