Implemented Thieving Amalgam

Mage.Sets/src/mage/cards/t/ThievingAmalgam.java

@@ -0,0 +1,142 @@
+package mage.cards.t;
+
+import mage.MageInt;
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.common.BeginningOfUpkeepTriggeredAbility;
+import mage.abilities.common.DiesCreatureTriggeredAbility;
+import mage.abilities.costs.mana.ManaCosts;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.GainLifeEffect;
+import mage.abilities.effects.common.continuous.BecomesFaceDownCreatureEffect;
+import mage.cards.Card;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledCreaturePermanent;
+import mage.filter.predicate.other.OwnerPredicate;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ThievingAmalgam extends CardImpl {
+
+    private static final FilterPermanent filter
+            = new FilterControlledCreaturePermanent("a creature you control but don't own");
+
+    static {
+        filter.add(new OwnerPredicate(TargetController.NOT_YOU));
+    }
+
+    public ThievingAmalgam(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{B}{B}");
+
+        this.subtype.add(SubType.APE);
+        this.subtype.add(SubType.SNAKE);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(7);
+
+        // At the beginning of each opponent's upkeep, you manifest the top card of that player's library.
+        this.addAbility(new BeginningOfUpkeepTriggeredAbility(
+                new ThievingAmalgamManifestEffect(), TargetController.OPPONENT, false
+        ));
+
+        // Whenever a creature you control but don't own dies, its owner loses 2 life and you gain 2 life.
+        this.addAbility(new DiesCreatureTriggeredAbility(
+                new ThievingAmalgamLifeLossEffect(), false, filter, true
+        ));
+    }
+
+    private ThievingAmalgam(final ThievingAmalgam card) {
+        super(card);
+    }
+
+    @Override
+    public ThievingAmalgam copy() {
+        return new ThievingAmalgam(this);
+    }
+}
+
+class ThievingAmalgamManifestEffect extends OneShotEffect {
+
+    ThievingAmalgamManifestEffect() {
+        super(Outcome.Benefit);
+        staticText = "you manifest the top card of that player's library";
+    }
+
+    private ThievingAmalgamManifestEffect(final ThievingAmalgamManifestEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ThievingAmalgamManifestEffect copy() {
+        return new ThievingAmalgamManifestEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        Player active = game.getPlayer(game.getActivePlayerId());
+        if (controller == null || active == null) {
+            return false;
+        }
+        Ability newSource = source.copy();
+        newSource.setWorksFaceDown(true);
+        Set<Card> cards = active.getLibrary().getTopCards(game, 1);
+        cards.stream().forEach(card -> {
+            ManaCosts manaCosts = null;
+            if (card.isCreature()) {
+                manaCosts = card.getSpellAbility() != null ? card.getSpellAbility().getManaCosts() : null;
+                if (manaCosts == null) {
+                    manaCosts = new ManaCostsImpl("{0}");
+                }
+            }
+            MageObjectReference objectReference = new MageObjectReference(card.getId(), card.getZoneChangeCounter(game) + 1, game);
+            game.addEffect(new BecomesFaceDownCreatureEffect(manaCosts, objectReference, Duration.Custom, BecomesFaceDownCreatureEffect.FaceDownType.MANIFESTED), newSource);
+        });
+        controller.moveCards(cards, Zone.BATTLEFIELD, source, game, false, true, false, null);
+        cards.stream()
+                .map(Card::getId)
+                .map(game::getPermanent)
+                .filter(permanent -> permanent != null)
+                .forEach(permanent -> permanent.setManifested(true));
+        return true;
+    }
+}
+
+class ThievingAmalgamLifeLossEffect extends OneShotEffect {
+
+    private static final Effect effect = new GainLifeEffect(2);
+
+    ThievingAmalgamLifeLossEffect() {
+        super(Outcome.Benefit);
+        staticText = "its owner loses 2 life and you gain 2 life";
+    }
+
+    private ThievingAmalgamLifeLossEffect(final ThievingAmalgamLifeLossEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ThievingAmalgamLifeLossEffect copy() {
+        return new ThievingAmalgamLifeLossEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(game.getOwnerId(targetPointer.getFirst(game, source)));
+        if (player == null) {
+            return false;
+        }
+        player.loseLife(2, game, false);
+        return effect.apply(game, source);
+    }
+}

Mage.Sets/src/mage/sets/Commander2019Edition.java

@@ -275,6 +275,7 @@ public final class Commander2019Edition extends ExpansionSet {
         cards.add(new SetCardInfo("The Eldest Reborn", 131, Rarity.UNCOMMON, mage.cards.t.TheEldestReborn.class));
         cards.add(new SetCardInfo("Thelonite Hermit", 184, Rarity.RARE, mage.cards.t.TheloniteHermit.class));
         cards.add(new SetCardInfo("Thespian's Stage", 282, Rarity.RARE, mage.cards.t.ThespiansStage.class));
+        cards.add(new SetCardInfo("Thieving Amalgam", 21, Rarity.RARE, mage.cards.t.ThievingAmalgam.class));
         cards.add(new SetCardInfo("Think Twice", 99, Rarity.COMMON, mage.cards.t.ThinkTwice.class));
         cards.add(new SetCardInfo("Thornwood Falls", 283, Rarity.COMMON, mage.cards.t.ThornwoodFalls.class));
         cards.add(new SetCardInfo("Thought Sponge", 12, Rarity.RARE, mage.cards.t.ThoughtSponge.class));