From 512965c9f58f7a0e96500ed4e6fcaaad386222b4 Mon Sep 17 00:00:00 2001
From: matoro <12038583+matoro@users.noreply.github.com>
Date: Tue, 20 Jan 2026 16:26:06 -0500
Subject: [PATCH] [DSC] Implement Zimone's Hypothesis (#14296)

---
 .../src/mage/cards/z/ZimonesHypothesis.java   | 112 ++++++++++++++++++
 .../sets/DuskmournHouseOfHorrorCommander.java |   1 +
 .../mageobject/PowerParityPredicate.java      |  29 +++++
 3 files changed, 142 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/z/ZimonesHypothesis.java
 create mode 100644 Mage/src/main/java/mage/filter/predicate/mageobject/PowerParityPredicate.java

diff --git a/Mage.Sets/src/mage/cards/z/ZimonesHypothesis.java b/Mage.Sets/src/mage/cards/z/ZimonesHypothesis.java
new file mode 100644
index 00000000000..6e9187e8299
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/z/ZimonesHypothesis.java
@@ -0,0 +1,112 @@
+package mage.cards.z;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.common.StaticValue;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.ReturnToHandFromBattlefieldAllEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.counters.CounterType;
+import mage.filter.FilterPermanent;
+import mage.filter.StaticFilters;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.PowerParityPredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.common.TargetCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author matoro
+ * Based on initial version by werhsdnas
+ */
+public final class ZimonesHypothesis extends CardImpl {
+
+    public ZimonesHypothesis(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{3}{U}{U}");
+
+        // You may put a +1/+1 counter on a creature.
+        this.getSpellAbility().addEffect(new ZimonesHypothesisCounterEffect());
+
+        //Then choose odd or even. Return each creature with power of the chosen quality to its owner’s hand.
+        this.getSpellAbility().addEffect(new ZimonesHypothesisBounceEffect());
+    }
+
+    private ZimonesHypothesis(final ZimonesHypothesis card) {
+        super(card);
+    }
+
+    @Override
+    public ZimonesHypothesis copy() {
+        return new ZimonesHypothesis(this);
+    }
+}
+
+class ZimonesHypothesisCounterEffect extends OneShotEffect {
+
+    ZimonesHypothesisCounterEffect() {
+        super(Outcome.BoostCreature);
+        this.staticText = "You may put a +1/+1 counter on a creature.";
+    }
+
+    private ZimonesHypothesisCounterEffect(final ZimonesHypothesisCounterEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ZimonesHypothesisCounterEffect copy() {
+        return new ZimonesHypothesisCounterEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        final Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        final Target target = new TargetCreaturePermanent(0, 1).withNotTarget(true);
+        player.choose(this.outcome, target, source, game);
+        final Permanent permanent = game.getPermanent(target.getFirstTarget());
+        return permanent != null && permanent.addCounters(CounterType.P1P1.createInstance(), source, game);
+    }
+}
+
+class ZimonesHypothesisBounceEffect extends OneShotEffect {
+
+    private static final FilterPermanent evenFilter = new FilterCreaturePermanent();
+    private static final FilterPermanent oddFilter = new FilterCreaturePermanent();
+
+    static {
+        evenFilter.add(PowerParityPredicate.EVEN);
+        oddFilter.add(PowerParityPredicate.ODD);
+    }
+
+    ZimonesHypothesisBounceEffect() {
+        super(Outcome.ReturnToHand);
+        this.staticText = "<br>Then choose odd or even. Return each creature with power of the chosen quality to its owner's hand. <i>(Zero is even.)</i>";
+    }
+
+    private ZimonesHypothesisBounceEffect(final ZimonesHypothesisBounceEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ZimonesHypothesisBounceEffect copy() {
+        return new ZimonesHypothesisBounceEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        final Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        final FilterPermanent filter = player.chooseUse(this.outcome, "Odd or even?", null, "Odd", "Even", source, game) ? oddFilter : evenFilter;
+        return new ReturnToHandFromBattlefieldAllEffect(filter).apply(game, source);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java
index 1dad64f44fb..f6525a8f68e 100644
--- a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java
+++ b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorrorCommander.java
@@ -348,5 +348,6 @@ public final class DuskmournHouseOfHorrorCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Yavimaya Elder", 208, Rarity.COMMON, mage.cards.y.YavimayaElder.class));
         cards.add(new SetCardInfo("Yedora, Grave Gardener", 209, Rarity.UNCOMMON, mage.cards.y.YedoraGraveGardener.class));
         cards.add(new SetCardInfo("Zimone, Mystery Unraveler", 8, Rarity.MYTHIC, mage.cards.z.ZimoneMysteryUnraveler.class));
+        cards.add(new SetCardInfo("Zimone's Hypothesis", 15, Rarity.RARE, mage.cards.z.ZimonesHypothesis.class));
     }
 }
diff --git a/Mage/src/main/java/mage/filter/predicate/mageobject/PowerParityPredicate.java b/Mage/src/main/java/mage/filter/predicate/mageobject/PowerParityPredicate.java
new file mode 100644
index 00000000000..36ac73b5184
--- /dev/null
+++ b/Mage/src/main/java/mage/filter/predicate/mageobject/PowerParityPredicate.java
@@ -0,0 +1,29 @@
+package mage.filter.predicate.mageobject;
+
+import mage.MageObject;
+import mage.filter.predicate.Predicate;
+import mage.game.Game;
+
+/**
+ * @author matoro
+ * Based on initial version by werhsdnas
+ */
+public enum PowerParityPredicate implements Predicate<MageObject> {
+    EVEN(0),
+    ODD(1);
+    private final int parity;
+
+    PowerParityPredicate(int parity) {
+        this.parity = parity;
+    }
+
+    @Override
+    public boolean apply(MageObject input, Game game) {
+        return input.getPower().getValue() % 2 == parity;
+    }
+
+    @Override
+    public String toString() {
+        return "PowerParity" + super.toString();
+    }
+}