Implemented Serpent of Yawning Depths

Mage.Sets/src/mage/cards/s/SerpentOfYawningDepths.java

@@ -0,0 +1,84 @@
+package mage.cards.s;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.RestrictionEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SerpentOfYawningDepths extends CardImpl {
+
+    public SerpentOfYawningDepths(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT, CardType.CREATURE}, "{4}{U}{U}");
+
+        this.subtype.add(SubType.SERPENT);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(6);
+
+        // Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.
+        this.addAbility(new SimpleStaticAbility(new SerpentOfYawningDepthsEffect()));
+    }
+
+    private SerpentOfYawningDepths(final SerpentOfYawningDepths card) {
+        super(card);
+    }
+
+    @Override
+    public SerpentOfYawningDepths copy() {
+        return new SerpentOfYawningDepths(this);
+    }
+}
+
+class SerpentOfYawningDepthsEffect extends RestrictionEffect {
+
+    private static final FilterPermanent filter = new FilterCreaturePermanent();
+
+    static {
+        filter.add(Predicates.or(
+                new SubtypePredicate(SubType.KRAKEN),
+                new SubtypePredicate(SubType.LEVIATHAN),
+                new SubtypePredicate(SubType.OCTOPUS),
+                new SubtypePredicate(SubType.SERPENT)
+        ));
+    }
+
+    SerpentOfYawningDepthsEffect() {
+        super(Duration.WhileOnBattlefield);
+        this.staticText = "Krakens, Leviathans, Octopuses, and Serpents you control " +
+                "can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.";
+    }
+
+    private SerpentOfYawningDepthsEffect(SerpentOfYawningDepthsEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public SerpentOfYawningDepthsEffect copy() {
+        return new SerpentOfYawningDepthsEffect(this);
+    }
+
+    @Override
+    public boolean canBeBlocked(Permanent attacker, Permanent blocker, Ability source, Game game, boolean canUseChooseDialogs) {
+        return filter.match(blocker, game);
+    }
+
+    @Override
+    public boolean applies(Permanent permanent, Ability source, Game game) {
+        return permanent.isControlledBy(source.getControllerId()) && filter.match(permanent, game);
+    }
+}

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

@@ -48,6 +48,7 @@ public final class TherosBeyondDeath extends ExpansionSet {
         cards.add(new SetCardInfo("Nyxborn Courser", 29, Rarity.COMMON, mage.cards.n.NyxbornCourser.class));
         cards.add(new SetCardInfo("Plains", 250, Rarity.LAND, mage.cards.basiclands.Plains.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("Revoke Existence", 34, Rarity.COMMON, mage.cards.r.RevokeExistence.class));
+        cards.add(new SetCardInfo("Serpent of Yawning Depths", 291, Rarity.RARE, mage.cards.s.SerpentOfYawningDepths.class));
         cards.add(new SetCardInfo("Setessan Champion", 198, Rarity.RARE, mage.cards.s.SetessanChampion.class));
         cards.add(new SetCardInfo("Sphinx Mindbreaker", 290, Rarity.RARE, mage.cards.s.SphinxMindbreaker.class));
         cards.add(new SetCardInfo("Staggering Insight", 228, Rarity.UNCOMMON, mage.cards.s.StaggeringInsight.class));