From ee5fea71161a315a2afec45aeee8e7317e6c546d Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Fri, 28 May 2021 08:00:15 -0400
Subject: [PATCH] [MH2] Implemented Obsidian Charmaw

---
 .../src/mage/cards/o/ObsidianCharmaw.java     | 106 ++++++++++++++++++
 Mage.Sets/src/mage/sets/ModernHorizons2.java  |   1 +
 2 files changed, 107 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/o/ObsidianCharmaw.java

diff --git a/Mage.Sets/src/mage/cards/o/ObsidianCharmaw.java b/Mage.Sets/src/mage/cards/o/ObsidianCharmaw.java
new file mode 100644
index 00000000000..f38091b1d23
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/o/ObsidianCharmaw.java
@@ -0,0 +1,106 @@
+package mage.cards.o;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.DestroyTargetEffect;
+import mage.abilities.effects.common.cost.SpellCostReductionForEachSourceEffect;
+import mage.abilities.hint.Hint;
+import mage.abilities.hint.ValueHint;
+import mage.abilities.keyword.FlyingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterPermanent;
+import mage.filter.StaticFilters;
+import mage.filter.common.FilterLandPermanent;
+import mage.filter.predicate.Predicates;
+import mage.game.Game;
+import mage.target.TargetPermanent;
+
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ObsidianCharmaw extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterLandPermanent("nonbasic land an opponent controls");
+
+    static {
+        filter.add(Predicates.not(SuperType.BASIC.getPredicate()));
+        filter.add(TargetController.OPPONENT.getControllerPredicate());
+    }
+
+    private static final Hint hint = new ValueHint(
+            "Lands your opponents control that could produce {C}", ObsidianCharmawValue.instance
+    );
+
+    public ObsidianCharmaw(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{R}{R}");
+
+        this.subtype.add(SubType.DRAGON);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(4);
+
+        // This spell costs {1} less to cast for each land your opponents control that could produce {C}.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.ALL, new SpellCostReductionForEachSourceEffect(1, ObsidianCharmawValue.instance)
+        ).addHint(hint));
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // When Obsidian Charmaw enters the battlefield, destroy target nonbasic land an opponent controls
+        Ability ability = new EntersBattlefieldTriggeredAbility(new DestroyTargetEffect());
+        ability.addTarget(new TargetPermanent(filter));
+        this.addAbility(ability);
+    }
+
+    private ObsidianCharmaw(final ObsidianCharmaw card) {
+        super(card);
+    }
+
+    @Override
+    public ObsidianCharmaw copy() {
+        return new ObsidianCharmaw(this);
+    }
+}
+
+enum ObsidianCharmawValue implements DynamicValue {
+    instance;
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return game
+                .getBattlefield()
+                .getActivePermanents(
+                        StaticFilters.FILTER_OPPONENTS_PERMANENT,
+                        sourceAbility.getControllerId(), sourceAbility.getSourceId(), game
+                ).stream()
+                .filter(Objects::nonNull)
+                .filter(MageObject::isLand)
+                .filter(permanent -> permanent
+                        .getAbilities()
+                        .getActivatedManaAbilities(Zone.BATTLEFIELD)
+                        .stream()
+                        .anyMatch(ability -> ability.getProducableManaTypes(game).contains(ManaType.COLORLESS)))
+                .mapToInt(x -> 1)
+                .sum();
+    }
+
+    @Override
+    public ObsidianCharmawValue copy() {
+        return instance;
+    }
+
+    @Override
+    public String getMessage() {
+        return "land your opponents control that could produce {C}";
+    }
+}
\ No newline at end of file
diff --git a/Mage.Sets/src/mage/sets/ModernHorizons2.java b/Mage.Sets/src/mage/sets/ModernHorizons2.java
index 1314991ddc1..e63d02b7143 100644
--- a/Mage.Sets/src/mage/sets/ModernHorizons2.java
+++ b/Mage.Sets/src/mage/sets/ModernHorizons2.java
@@ -86,6 +86,7 @@ public final class ModernHorizons2 extends ExpansionSet {
         cards.add(new SetCardInfo("Mystic Redaction", 53, Rarity.UNCOMMON, mage.cards.m.MysticRedaction.class));
         cards.add(new SetCardInfo("Necromancer's Familiar", 94, Rarity.UNCOMMON, mage.cards.n.NecromancersFamiliar.class));
         cards.add(new SetCardInfo("Nevinyrral's Disk", 298, Rarity.RARE, mage.cards.n.NevinyrralsDisk.class));
+        cards.add(new SetCardInfo("Obsidian Charmaw", 137, Rarity.RARE, mage.cards.o.ObsidianCharmaw.class));
         cards.add(new SetCardInfo("Orchard Strider", 169, Rarity.COMMON, mage.cards.o.OrchardStrider.class));
         cards.add(new SetCardInfo("Patriarch's Bidding", 275, Rarity.RARE, mage.cards.p.PatriarchsBidding.class));
         cards.add(new SetCardInfo("Phantasmal Dreadmaw", 55, Rarity.COMMON, mage.cards.p.PhantasmalDreadmaw.class));