Implemented Extinction Event

Mage.Sets/src/mage/cards/e/ExtinctionEvent.java

@@ -0,0 +1,81 @@
+package mage.cards.e;
+
+import mage.abilities.Ability;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.ConvertedManaCostParityPredicate;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public final class ExtinctionEvent extends CardImpl {
+
+    public ExtinctionEvent(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{3}{B}");
+
+        // Choose odd or even. Exile each creature with a converted mana cost of the chosen value.
+        this.getSpellAbility().addEffect(new ExtinctionEventEffect());
+    }
+
+    private ExtinctionEvent(final ExtinctionEvent card) {
+        super(card);
+    }
+
+    @Override
+    public ExtinctionEvent copy() {
+        return new ExtinctionEvent(this);
+    }
+}
+
+class ExtinctionEventEffect extends OneShotEffect {
+
+    private static final FilterPermanent evenFilter = new FilterCreaturePermanent();
+    private static final FilterPermanent oddFilter = new FilterCreaturePermanent();
+
+    static {
+        evenFilter.add(ConvertedManaCostParityPredicate.EVEN);
+        oddFilter.add(ConvertedManaCostParityPredicate.ODD);
+    }
+
+    ExtinctionEventEffect() {
+        super(Outcome.Benefit);
+        staticText = "Choose odd or even. Exile each creature with a converted mana cost of the chosen value.";
+    }
+
+    private ExtinctionEventEffect(final ExtinctionEventEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ExtinctionEventEffect copy() {
+        return new ExtinctionEventEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        FilterPermanent filter = player.chooseUse(
+                outcome, "Odd or even?", null,
+                "Odd", "Even", source, game
+        ) ? oddFilter : evenFilter;
+        return player.moveCards(
+                game.getBattlefield().getActivePermanents(
+                        filter, source.getSourceId(), game
+                ).stream().collect(Collectors.toSet()), Zone.EXILED, source, game
+        );
+    }
+}

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

@@ -86,6 +86,7 @@ public final class IkoriaLairOfBehemoths extends ExpansionSet {
         cards.add(new SetCardInfo("Dreamtail Heron", 47, Rarity.COMMON, mage.cards.d.DreamtailHeron.class));
         cards.add(new SetCardInfo("Essence Scatter", 49, Rarity.COMMON, mage.cards.e.EssenceScatter.class));
         cards.add(new SetCardInfo("Everquill Phoenix", 114, Rarity.RARE, mage.cards.e.EverquillPhoenix.class));
+        cards.add(new SetCardInfo("Extinction Event", 88, Rarity.RARE, mage.cards.e.ExtinctionEvent.class));
         cards.add(new SetCardInfo("Exuberant Wolfbear", 151, Rarity.UNCOMMON, mage.cards.e.ExuberantWolfbear.class));
         cards.add(new SetCardInfo("Farfinder", 2, Rarity.COMMON, mage.cards.f.Farfinder.class));
         cards.add(new SetCardInfo("Fertilid", 152, Rarity.COMMON, mage.cards.f.Fertilid.class));

Mage/src/main/java/mage/filter/predicate/mageobject/ConvertedManaCostParityPredicate.java

@@ -0,0 +1,27 @@
+package mage.filter.predicate.mageobject;
+
+import mage.MageObject;
+import mage.filter.predicate.Predicate;
+import mage.game.Game;
+
+/**
+ * @author TheElk801
+ */
+public enum ConvertedManaCostParityPredicate implements Predicate<MageObject> {
+    EVEN(0),
+    ODD(1);
+    private final int parity;
+
+    ConvertedManaCostParityPredicate(int parity) {
+        this.parity = parity;
+    }
+
+    @Override
+    public boolean apply(MageObject input, Game game) {
+        return input.getConvertedManaCost() % 2 == parity;
+    }
+
+    @Override
+    public String toString() {
+        return "ConvertedManaCostParity" + super.toString();
+    }}