From 9563714dcb0cbd8ebcc516141fdb56fa6e6cf5f2 Mon Sep 17 00:00:00 2001
From: theelk801 <theelk801@gmail.com>
Date: Mon, 8 Dec 2025 10:18:54 -0500
Subject: [PATCH] [DSK] Implement Ghostly Keybearer

---
 .../src/mage/cards/g/GhostlyKeybearer.java    | 91 +++++++++++++++++++
 .../src/mage/sets/DuskmournHouseOfHorror.java |  1 +
 2 files changed, 92 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/g/GhostlyKeybearer.java

diff --git a/Mage.Sets/src/mage/cards/g/GhostlyKeybearer.java b/Mage.Sets/src/mage/cards/g/GhostlyKeybearer.java
new file mode 100644
index 00000000000..c387627e364
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/g/GhostlyKeybearer.java
@@ -0,0 +1,91 @@
+package mage.cards.g;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.DealsCombatDamageToAPlayerTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.keyword.FlyingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledPermanent;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class GhostlyKeybearer extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterControlledPermanent(SubType.ROOM);
+
+    public GhostlyKeybearer(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{U}");
+
+        this.subtype.add(SubType.SPIRIT);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Whenever this creature deals combat damage to a player, unlock a locked door of up to one target Room you control.
+        Ability ability = new DealsCombatDamageToAPlayerTriggeredAbility(new GhostlyKeybearerEffect());
+        ability.addTarget(new TargetPermanent(0, 1, filter));
+        this.addAbility(ability);
+    }
+
+    private GhostlyKeybearer(final GhostlyKeybearer card) {
+        super(card);
+    }
+
+    @Override
+    public GhostlyKeybearer copy() {
+        return new GhostlyKeybearer(this);
+    }
+}
+
+class GhostlyKeybearerEffect extends OneShotEffect {
+
+    GhostlyKeybearerEffect() {
+        super(Outcome.Benefit);
+        staticText = "unlock a locked door of up to one target Room you control";
+    }
+
+    private GhostlyKeybearerEffect(final GhostlyKeybearerEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public GhostlyKeybearerEffect copy() {
+        return new GhostlyKeybearerEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Permanent permanent = game.getPermanent(getTargetPointer().getFirst(game, source));
+        if (player == null || permanent == null || !permanent.isLeftDoorUnlocked() && !permanent.isRightDoorUnlocked()) {
+            return false;
+        }
+        boolean unlockLeft;
+        if (!permanent.isLeftDoorUnlocked() && permanent.isRightDoorUnlocked()) {
+            unlockLeft = true;
+        } else if (permanent.isLeftDoorUnlocked() && !permanent.isRightDoorUnlocked()) {
+            unlockLeft = false;
+        } else {
+            unlockLeft = player.chooseUse(
+                    Outcome.Neutral, "Unlock the left door or the right door?",
+                    null, "Left", "Right", source, game
+            );
+        }
+        return permanent.unlockDoor(game, source, unlockLeft);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
index f221b78c050..03d1e984f3d 100644
--- a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
+++ b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
@@ -153,6 +153,7 @@ public final class DuskmournHouseOfHorror extends ExpansionSet {
         cards.add(new SetCardInfo("Ghost Vacuum", 326, Rarity.RARE, mage.cards.g.GhostVacuum.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Ghostly Dancers", 13, Rarity.RARE, mage.cards.g.GhostlyDancers.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Ghostly Dancers", 302, Rarity.RARE, mage.cards.g.GhostlyDancers.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Ghostly Keybearer", 61, Rarity.UNCOMMON, mage.cards.g.GhostlyKeybearer.class));
         cards.add(new SetCardInfo("Give In to Violence", 101, Rarity.COMMON, mage.cards.g.GiveInToViolence.class));
         cards.add(new SetCardInfo("Glassworks // Shattered Yard", 137, Rarity.COMMON, mage.cards.g.GlassworksShatteredYard.class));
         cards.add(new SetCardInfo("Glimmer Seeker", 14, Rarity.UNCOMMON, mage.cards.g.GlimmerSeeker.class));