From 82c5edae2b476280f38695ac042bd5c220a9b9b0 Mon Sep 17 00:00:00 2001
From: theelk801 <theelk801@gmail.com>
Date: Mon, 22 Dec 2025 17:00:59 -0500
Subject: [PATCH] [DSC] Implement Secret Arcade // Dusty Parlor

---
 .../mage/cards/s/SecretArcadeDustyParlor.java | 120 ++++++++++++++++++
 .../sets/DuskmournHouseOfHorrorCommander.java |   1 +
 2 files changed, 121 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/s/SecretArcadeDustyParlor.java

diff --git a/Mage.Sets/src/mage/cards/s/SecretArcadeDustyParlor.java b/Mage.Sets/src/mage/cards/s/SecretArcadeDustyParlor.java
new file mode 100644
index 00000000000..d44b691db08
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/s/SecretArcadeDustyParlor.java
@@ -0,0 +1,120 @@
+package mage.cards.s;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.common.SpellCastControllerTriggeredAbility;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.counter.AddCountersTargetEffect;
+import mage.cards.CardSetInfo;
+import mage.cards.RoomCard;
+import mage.constants.*;
+import mage.counters.CounterType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.game.stack.StackObject;
+import mage.target.common.TargetCreaturePermanent;
+
+import java.util.Optional;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SecretArcadeDustyParlor extends RoomCard {
+
+    public SecretArcadeDustyParlor(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, "{4}{W}", "{2}{W}");
+
+        // Secret Arcade
+        // Nonland permanents you control and permanent spells you control are enchantments in addition to their other types.
+        this.getLeftHalfCard().addAbility(new SimpleStaticAbility(new SecretArcadeEffect()));
+
+        // Dusty Parlor
+        // Whenever you cast an enchantment spell, put a number of +1/+1 counters equal to that spell's mana value on up to one target creature.
+        Ability ability = new SpellCastControllerTriggeredAbility(
+                new AddCountersTargetEffect(CounterType.P1P1.createInstance(), DustyParlorValue.instance)
+                        .setText("put a number of +1/+1 counters equal to that spell's mana value on up to one target creature"),
+                StaticFilters.FILTER_SPELL_AN_ENCHANTMENT, false
+        );
+        ability.addTarget(new TargetCreaturePermanent(0, 1));
+        this.getRightHalfCard().addAbility(ability);
+    }
+
+    private SecretArcadeDustyParlor(final SecretArcadeDustyParlor card) {
+        super(card);
+    }
+
+    @Override
+    public SecretArcadeDustyParlor copy() {
+        return new SecretArcadeDustyParlor(this);
+    }
+}
+
+class SecretArcadeEffect extends ContinuousEffectImpl {
+
+    SecretArcadeEffect() {
+        super(Duration.WhileOnBattlefield, Layer.TypeChangingEffects_4, SubLayer.NA, Outcome.Benefit);
+        this.dependencyTypes.add(DependencyType.EnchantmentAddingRemoving);
+        this.dependencyTypes.add(DependencyType.AuraAddingRemoving);
+        staticText = "nonland permanents you control and permanent spells you control " +
+                "are enchantments in addition to their other types";
+    }
+
+    private SecretArcadeEffect(final SecretArcadeEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public SecretArcadeEffect copy() {
+        return new SecretArcadeEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        for (Permanent permanent : game.getBattlefield().getActivePermanents(
+                StaticFilters.FILTER_CONTROLLED_PERMANENT_NON_LAND, source.getControllerId(), source, game
+        )) {
+            permanent.addCardType(game, CardType.ENCHANTMENT);
+        }
+        for (StackObject stackObject : game.getStack()) {
+            if (stackObject instanceof Spell
+                    && stackObject.isPermanent(game)
+                    && stackObject.isControlledBy(source.getControllerId())) {
+                stackObject.addCardType(game, CardType.ENCHANTMENT);
+            }
+        }
+        return true;
+    }
+}
+
+enum DustyParlorValue implements DynamicValue {
+    instance;
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return Optional
+                .ofNullable(effect.getValue("spellCast"))
+                .map(Spell.class::cast)
+                .map(Spell::getManaValue)
+                .orElse(0);
+    }
+
+    @Override
+    public DustyParlorValue copy() {
+        return this;
+    }
+
+    @Override
+    public String getMessage() {
+        return "";
+    }
+
+    @Override
+    public String toString() {
+        return "1";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java
index ad542444fdd..1dad64f44fb 100644
--- a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java
+++ b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java
@@ -252,6 +252,7 @@ public final class DuskmournHouseOfHorrorCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Scute Swarm", 197, Rarity.RARE, mage.cards.s.ScuteSwarm.class));
         cards.add(new SetCardInfo("Seance Board", 40, Rarity.RARE, mage.cards.s.SeanceBoard.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Seance Board", 67, Rarity.RARE, mage.cards.s.SeanceBoard.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Secret Arcade // Dusty Parlor", 10, Rarity.RARE, mage.cards.s.SecretArcadeDustyParlor.class));
         cards.add(new SetCardInfo("Shadowblood Ridge", 296, Rarity.RARE, mage.cards.s.ShadowbloodRidge.class));
         cards.add(new SetCardInfo("Shark Typhoon", 127, Rarity.RARE, mage.cards.s.SharkTyphoon.class));
         cards.add(new SetCardInfo("Shigeki, Jukai Visionary", 198, Rarity.RARE, mage.cards.s.ShigekiJukaiVisionary.class));