Implemented Gyruda, Doom of Depths

Mage.Sets/src/mage/cards/g/GyrudaDoomOfDepths.java

@@ -0,0 +1,125 @@
+package mage.cards.g;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.keyword.CompanionAbility;
+import mage.abilities.keyword.CompanionCondition;
+import mage.cards.*;
+import mage.constants.*;
+import mage.filter.FilterCard;
+import mage.filter.common.FilterCreatureCard;
+import mage.filter.predicate.mageobject.ConvertedManaCostParityPredicate;
+import mage.game.Game;
+import mage.players.Player;
+import mage.target.TargetCard;
+import mage.target.common.TargetCardInGraveyard;
+
+import java.util.Collection;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class GyrudaDoomOfDepths extends CardImpl {
+
+    public GyrudaDoomOfDepths(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{4}{U/B}{U/B}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.DEMON);
+        this.subtype.add(SubType.KRAKEN);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(6);
+
+        // Companion — Your starting deck contains only cards with even converted mana costs.
+        this.addAbility(new CompanionAbility(OboshThePreypiercerCompanionCondition.instance));
+
+        // When Gyruda, Doom of Depths enters the battlefield, each player puts the top four cards of the library into their graveyard. Put a creature card with an even converted mana cost from among those cards onto the battlefield under your control.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new GyrudaDoomOfDepthsEffect()));
+    }
+
+    private GyrudaDoomOfDepths(final GyrudaDoomOfDepths card) {
+        super(card);
+    }
+
+    @Override
+    public GyrudaDoomOfDepths copy() {
+        return new GyrudaDoomOfDepths(this);
+    }
+}
+
+enum OboshThePreypiercerCompanionCondition implements CompanionCondition {
+    instance;
+
+    @Override
+    public String getRule() {
+        return "Your starting deck contains only cards with odd converted mana costs and land cards.";
+    }
+
+    @Override
+    public boolean isLegal(Set<Card> deck) {
+        return deck
+                .stream()
+                .filter(card -> !card.isLand())
+                .mapToInt(MageObject::getConvertedManaCost)
+                .map(i -> i % 2)
+                .allMatch(i -> i == 0);
+    }
+}
+
+class GyrudaDoomOfDepthsEffect extends OneShotEffect {
+
+    private static final FilterCard filter
+            = new FilterCreatureCard("creature card with an even converted mana cost");
+
+    static {
+        filter.add(ConvertedManaCostParityPredicate.EVEN);
+    }
+
+    GyrudaDoomOfDepthsEffect() {
+        super(Outcome.Benefit);
+        staticText = "each player puts the top four cards of the library into their graveyard. " +
+                "Put a creature card with an even converted mana cost from among those cards " +
+                "onto the battlefield under your control.";
+    }
+
+    private GyrudaDoomOfDepthsEffect(final GyrudaDoomOfDepthsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public GyrudaDoomOfDepthsEffect copy() {
+        return new GyrudaDoomOfDepthsEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            return false;
+        }
+        Cards cards = new CardsImpl();
+        game.getState()
+                .getPlayersInRange(source.getControllerId(), game)
+                .stream()
+                .map(game::getPlayer)
+                .map(Player::getLibrary)
+                .map(library -> library.getTopCards(game, 4))
+                .flatMap(Collection::stream)
+                .forEach(cards::add);
+        controller.moveCards(cards, Zone.GRAVEYARD, source, game);
+        cards.removeIf(cardId -> game.getState().getZone(cardId) != Zone.GRAVEYARD);
+        if (cards.isEmpty()) {
+            return true;
+        }
+        TargetCard targetCard = new TargetCardInGraveyard(0, 1, filter);
+        targetCard.setNotTarget(true);
+        controller.choose(outcome, cards, targetCard, game);
+        Card card = game.getCard(targetCard.getFirstTarget());
+        return card != null && controller.moveCards(card, Zone.BATTLEFIELD, source, game);
+    }
+}

Mage.Sets/src/mage/cards/o/OboshThePreypiercer.java

@@ -63,7 +63,7 @@ enum OboshThePreypiercerCompanionCondition implements CompanionCondition {
                 .stream()
                 .filter(card -> !card.isLand())
                 .mapToInt(MageObject::getConvertedManaCost)
-                .map(i -> i & 1)
+                .map(i -> i % 2)
                 .allMatch(i -> i == 1);
     }
 }

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

@@ -160,6 +160,7 @@ public final class IkoriaLairOfBehemoths extends ExpansionSet {
         cards.add(new SetCardInfo("Greater Sandwurm", 157, Rarity.COMMON, mage.cards.g.GreaterSandwurm.class));
         cards.add(new SetCardInfo("Grimdancer", 90, Rarity.UNCOMMON, mage.cards.g.Grimdancer.class));
         cards.add(new SetCardInfo("Gust of Wind", 54, Rarity.COMMON, mage.cards.g.GustOfWind.class));
+        cards.add(new SetCardInfo("Gyruda, Doom of Depths", 221, Rarity.RARE, mage.cards.g.GyrudaDoomOfDepths.class));
         cards.add(new SetCardInfo("Hampering Snare", 55, Rarity.COMMON, mage.cards.h.HamperingSnare.class));
         cards.add(new SetCardInfo("Heartless Act", 91, Rarity.UNCOMMON, mage.cards.h.HeartlessAct.class));
         cards.add(new SetCardInfo("Heightened Reflexes", 123, Rarity.COMMON, mage.cards.h.HeightenedReflexes.class));