Implemented Kaya's Wrath

Mage.Sets/src/mage/cards/k/KayasWrath.java

@@ -0,0 +1,69 @@
+package mage.cards.k;
+
+import mage.abilities.Ability;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.GainLifeEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class KayasWrath extends CardImpl {
+
+    public KayasWrath(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{W}{W}{B}{B}");
+
+        // Destroy all creatures. You gain life equal to the number of creatures you controlled that were destroyed this way.
+        this.getSpellAbility().addEffect(new KayasWrathEffect());
+    }
+
+    private KayasWrath(final KayasWrath card) {
+        super(card);
+    }
+
+    @Override
+    public KayasWrath copy() {
+        return new KayasWrath(this);
+    }
+}
+
+class KayasWrathEffect extends OneShotEffect {
+
+    KayasWrathEffect() {
+        super(Outcome.Benefit);
+        staticText = "Destroy all creatures. You gain life equal to the number of " +
+                "creatures you controlled that were destroyed this way.";
+    }
+
+    private KayasWrathEffect(final KayasWrathEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public KayasWrathEffect copy() {
+        return new KayasWrathEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        int counter = 0;
+        for (Permanent permanent : game.getBattlefield().getActivePermanents(
+                StaticFilters.FILTER_PERMANENT_CREATURE,
+                source.getControllerId(), source.getSourceId(), game
+        )) {
+            boolean isMine = permanent != null && permanent.getControllerId().equals(source.getControllerId());
+            if (permanent.destroy(source.getSourceId(), game, false) && isMine) {
+                counter++;
+            }
+        }
+        return new GainLifeEffect(counter).apply(game, source);
+    }
+}

Mage.Sets/src/mage/sets/RavnicaAllegiance.java

@@ -82,6 +82,7 @@ public final class RavnicaAllegiance extends ExpansionSet {
         cards.add(new SetCardInfo("Imperious Oligarch", 184, Rarity.COMMON, mage.cards.i.ImperiousOligarch.class));
         cards.add(new SetCardInfo("Incubation // Incongruity", 226, Rarity.UNCOMMON, mage.cards.i.IncubationIncongruity.class));
         cards.add(new SetCardInfo("Judith, the Scourge Diva", 185, Rarity.RARE, mage.cards.j.JudithTheScourgeDiva.class));
+        cards.add(new SetCardInfo("Kaya's Wrath", 187, Rarity.RARE, mage.cards.k.KayasWrath.class));
         cards.add(new SetCardInfo("Kaya, Orzhov Usurper", 186, Rarity.MYTHIC, mage.cards.k.KayaOrzhovUsurper.class));
         cards.add(new SetCardInfo("Lavinia, Azorius Renegade", 189, Rarity.RARE, mage.cards.l.LaviniaAzoriusRenegade.class));
         cards.add(new SetCardInfo("Light Up the Stage", 107, Rarity.UNCOMMON, mage.cards.l.LightUpTheStage.class));