Implemented Hateful Eidolon

Mage.Sets/src/mage/cards/h/HatefulEidolon.java

@@ -0,0 +1,104 @@
+package mage.cards.h;
+
+import mage.MageInt;
+import mage.MageItem;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.abilities.keyword.LifelinkAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.permanent.EnchantedPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class HatefulEidolon extends CardImpl {
+
+    public HatefulEidolon(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT, CardType.CREATURE}, "{B}");
+
+        this.subtype.add(SubType.SPIRIT);
+        this.power = new MageInt(1);
+        this.toughness = new MageInt(2);
+
+        // Lifelink
+        this.addAbility(LifelinkAbility.getInstance());
+
+        // Whenever an enchanted creature dies, draw a card for each Aura you controlled that was attached to it.
+        this.addAbility(new HatefulEidolonTriggeredAbility());
+    }
+
+    private HatefulEidolon(final HatefulEidolon card) {
+        super(card);
+    }
+
+    @Override
+    public HatefulEidolon copy() {
+        return new HatefulEidolon(this);
+    }
+}
+
+class HatefulEidolonTriggeredAbility extends TriggeredAbilityImpl {
+
+    private static final FilterPermanent filter = new FilterCreaturePermanent();
+
+    static {
+        filter.add(EnchantedPredicate.instance);
+    }
+
+    HatefulEidolonTriggeredAbility() {
+        super(Zone.BATTLEFIELD, null, false);
+    }
+
+    private HatefulEidolonTriggeredAbility(final HatefulEidolonTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public HatefulEidolonTriggeredAbility copy() {
+        return new HatefulEidolonTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ZONE_CHANGE;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
+        if (!zEvent.isDiesEvent() || !filter.match(zEvent.getTarget(), game)) {
+            return false;
+        }
+        int auraCount = zEvent
+                .getTarget()
+                .getAttachments()
+                .stream()
+                .map(game::getPermanentOrLKIBattlefield)
+                .filter(Objects::nonNull)
+                .filter(permanent -> permanent.hasSubtype(SubType.AURA, game))
+                .map(MageItem::getId)
+                .filter(this.getControllerId()::equals)
+                .mapToInt(x -> 1)
+                .sum();
+        this.getEffects().clear();
+        this.addEffect(new DrawCardSourceControllerEffect(auraCount));
+        return true;
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever an enchanted creature dies, draw a card for each Aura you controlled that was attached to it.";
+    }
+}

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

@@ -86,6 +86,7 @@ public final class TherosBeyondDeath extends ExpansionSet {
         cards.add(new SetCardInfo("Grasping Giant", 288, Rarity.RARE, mage.cards.g.GraspingGiant.class));
         cards.add(new SetCardInfo("Gray Merchant of Asphodel", 99, Rarity.UNCOMMON, mage.cards.g.GrayMerchantOfAsphodel.class));
         cards.add(new SetCardInfo("Haktos the Unscarred", 218, Rarity.RARE, mage.cards.h.HaktosTheUnscarred.class));
+        cards.add(new SetCardInfo("Hateful Eidolon", 101, Rarity.UNCOMMON, mage.cards.h.HatefulEidolon.class));
         cards.add(new SetCardInfo("Heliod's Intervention", 19, Rarity.RARE, mage.cards.h.HeliodsIntervention.class));
         cards.add(new SetCardInfo("Heliod's Pilgrim", 20, Rarity.COMMON, mage.cards.h.HeliodsPilgrim.class));
         cards.add(new SetCardInfo("Heliod, Sun-Crowned", 18, Rarity.MYTHIC, mage.cards.h.HeliodSunCrowned.class));