From 193b9a79862d7d398c8624ecd5a232cefba0906c Mon Sep 17 00:00:00 2001
From: theelk801 <theelk801@gmail.com>
Date: Thu, 25 Jan 2024 10:53:59 -0500
Subject: [PATCH] [MKM] Implement Leyline of the Guildpact

---
 .../mage/cards/l/LeylineOfTheGuildpact.java   | 74 +++++++++++++++++++
 .../src/mage/sets/MurdersAtKarlovManor.java   |  1 +
 2 files changed, 75 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/l/LeylineOfTheGuildpact.java

diff --git a/Mage.Sets/src/mage/cards/l/LeylineOfTheGuildpact.java b/Mage.Sets/src/mage/cards/l/LeylineOfTheGuildpact.java
new file mode 100644
index 00000000000..df4416bb366
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/l/LeylineOfTheGuildpact.java
@@ -0,0 +1,74 @@
+package mage.cards.l;
+
+import mage.ObjectColor;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.abilities.effects.common.continuous.BecomesAllBasicsControlledEffect;
+import mage.abilities.keyword.LeylineAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class LeylineOfTheGuildpact extends CardImpl {
+
+    public LeylineOfTheGuildpact(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{G/W}{G/U}{B/G}{R/G}");
+
+        // If Leyline of the Guildpact is in your opening hand, you may begin the game with it on the battlefield.
+        this.addAbility(LeylineAbility.getInstance());
+
+        // Each nonland permanent you control is all colors.
+        this.addAbility(new SimpleStaticAbility(new LeylineOfTheGuildpactEffect()));
+
+        // Lands you control are every basic land type in addition to their other types.
+        this.addAbility(new SimpleStaticAbility(new BecomesAllBasicsControlledEffect()));
+    }
+
+    private LeylineOfTheGuildpact(final LeylineOfTheGuildpact card) {
+        super(card);
+    }
+
+    @Override
+    public LeylineOfTheGuildpact copy() {
+        return new LeylineOfTheGuildpact(this);
+    }
+}
+
+class LeylineOfTheGuildpactEffect extends ContinuousEffectImpl {
+
+    private static final ObjectColor allColors = new ObjectColor("WUBRG");
+
+    LeylineOfTheGuildpactEffect() {
+        super(Duration.WhileOnBattlefield, Layer.ColorChangingEffects_5, SubLayer.NA, Outcome.Benefit);
+        staticText = "each nonland permanent you control is all colors";
+    }
+
+    private LeylineOfTheGuildpactEffect(final LeylineOfTheGuildpactEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public LeylineOfTheGuildpactEffect copy() {
+        return new LeylineOfTheGuildpactEffect(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.getColor(game).addColor(allColors);
+        }
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java b/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java
index 767b02f70ed..440ea6293b6 100644
--- a/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java
+++ b/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java
@@ -83,6 +83,7 @@ public final class MurdersAtKarlovManor extends ExpansionSet {
         cards.add(new SetCardInfo("Krenko, Baron of Tin Street", 135, Rarity.RARE, mage.cards.k.KrenkoBaronOfTinStreet.class));
         cards.add(new SetCardInfo("Kylox, Visionary Inventor", 214, Rarity.RARE, mage.cards.k.KyloxVisionaryInventor.class));
         cards.add(new SetCardInfo("Lead Pipe", 90, Rarity.UNCOMMON, mage.cards.l.LeadPipe.class));
+        cards.add(new SetCardInfo("Leyline of the Guildpact", 217, Rarity.RARE, mage.cards.l.LeylineOfTheGuildpact.class));
         cards.add(new SetCardInfo("Lightning Helix", 218, Rarity.UNCOMMON, mage.cards.l.LightningHelix.class));
         cards.add(new SetCardInfo("Long Goodbye", 92, Rarity.UNCOMMON, mage.cards.l.LongGoodbye.class));
         cards.add(new SetCardInfo("Loxodon Eavesdropper", 168, Rarity.COMMON, mage.cards.l.LoxodonEavesdropper.class));