From df6ba9fdb1220367d6872dc6ede7e4ebd48989be Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Tue, 28 May 2019 18:38:26 -0400
Subject: [PATCH] Implemented On Thin Ice

---
 Mage.Sets/src/mage/cards/o/OnThinIce.java   | 63 +++++++++++++++++++++
 Mage.Sets/src/mage/sets/ModernHorizons.java |  1 +
 2 files changed, 64 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/o/OnThinIce.java

diff --git a/Mage.Sets/src/mage/cards/o/OnThinIce.java b/Mage.Sets/src/mage/cards/o/OnThinIce.java
new file mode 100644
index 00000000000..93572c4d42f
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/o/OnThinIce.java
@@ -0,0 +1,63 @@
+package mage.cards.o;
+
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.delayed.OnLeaveReturnExiledToBattlefieldAbility;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.CreateDelayedTriggeredAbilityEffect;
+import mage.abilities.effects.common.ExileUntilSourceLeavesEffect;
+import mage.abilities.keyword.EnchantAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.constants.SuperType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledLandPermanent;
+import mage.filter.predicate.mageobject.SupertypePredicate;
+import mage.target.TargetPermanent;
+import mage.target.common.TargetOpponentsCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class OnThinIce extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterControlledLandPermanent("snow land you control");
+
+    static {
+        filter.add(new SupertypePredicate(SuperType.SNOW));
+    }
+
+    public OnThinIce(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{W}");
+
+        this.addSuperType(SuperType.SNOW);
+        this.subtype.add(SubType.AURA);
+
+        // Enchant snow land you control
+        TargetPermanent auraTarget = new TargetPermanent(filter);
+        this.getSpellAbility().addTarget(auraTarget);
+        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
+        Ability ability = new EnchantAbility(auraTarget.getTargetName());
+        this.addAbility(ability);
+
+        // When On Thin Ice enters the battlefield, exile target creature an opponent controls until On Thin Ice leaves the battlefield.
+        ability = new EntersBattlefieldTriggeredAbility(new ExileUntilSourceLeavesEffect("creature"));
+        ability.addTarget(new TargetOpponentsCreaturePermanent());
+        ability.addEffect(new CreateDelayedTriggeredAbilityEffect(new OnLeaveReturnExiledToBattlefieldAbility()));
+        this.addAbility(ability);
+    }
+
+    private OnThinIce(final OnThinIce card) {
+        super(card);
+    }
+
+    @Override
+    public OnThinIce copy() {
+        return new OnThinIce(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/ModernHorizons.java b/Mage.Sets/src/mage/sets/ModernHorizons.java
index 2b436873f3f..aa12580223d 100644
--- a/Mage.Sets/src/mage/sets/ModernHorizons.java
+++ b/Mage.Sets/src/mage/sets/ModernHorizons.java
@@ -106,6 +106,7 @@ public final class ModernHorizons extends ExpansionSet {
         cards.add(new SetCardInfo("Nether Spirit", 98, Rarity.RARE, mage.cards.n.NetherSpirit.class));
         cards.add(new SetCardInfo("Nimble Mongoose", 174, Rarity.COMMON, mage.cards.n.NimbleMongoose.class));
         cards.add(new SetCardInfo("Nurturing Peatland", 243, Rarity.RARE, mage.cards.n.NurturingPeatland.class));
+        cards.add(new SetCardInfo("On Thin Ice", 20, Rarity.RARE, mage.cards.o.OnThinIce.class));
         cards.add(new SetCardInfo("Orcish Hellraiser", 136, Rarity.COMMON, mage.cards.o.OrcishHellraiser.class));
         cards.add(new SetCardInfo("Pillage", 139, Rarity.UNCOMMON, mage.cards.p.Pillage.class));
         cards.add(new SetCardInfo("Plague Engineer", 100, Rarity.RARE, mage.cards.p.PlagueEngineer.class));