Implement Aetherplasm

Mage.Sets/src/mage/cards/a/Aetherplasm.java

@@ -0,0 +1,98 @@
+package mage.cards.a;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.common.BlocksTriggeredAbility;
+import mage.abilities.costs.common.ReturnToHandFromBattlefieldSourceCost;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.DoIfCostPaid;
+import mage.abilities.effects.common.PutCardFromHandOntoBattlefieldEffect;
+import mage.abilities.effects.common.ReturnToHandSourceEffect;
+import mage.cards.Card;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Zone;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.combat.CombatGroup;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.common.TargetCardInHand;
+
+/**
+ *
+ * @author noahg
+ */
+public final class Aetherplasm extends CardImpl {
+
+    public Aetherplasm(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{U}{U}");
+        
+        this.subtype.add(SubType.ILLUSION);
+        this.power = new MageInt(1);
+        this.toughness = new MageInt(1);
+
+        // Whenever Aetherplasm blocks a creature, you may return Aetherplasm to its owner's hand. If you do, you may put a creature card from your hand onto the battlefield blocking that creature.
+        this.addAbility(new BlocksTriggeredAbility
+                (new DoIfCostPaid(new AetherplasmEffect(), new ReturnToHandFromBattlefieldSourceCost()), false, true));
+    }
+
+    public Aetherplasm(final Aetherplasm card) {
+        super(card);
+    }
+
+    @Override
+    public Aetherplasm copy() {
+        return new Aetherplasm(this);
+    }
+}
+
+class AetherplasmEffect extends OneShotEffect {
+
+    public AetherplasmEffect() {
+        super(Outcome.PutCardInPlay);
+        this.staticText = "you may put a creature card from your hand onto the battlefield blocking that creature";
+    }
+
+    public AetherplasmEffect(AetherplasmEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Permanent blockedCreature = game.getPermanent(getTargetPointer().getFirst(game, source));
+        if (player == null) {
+            return false;
+        }
+        if (player.chooseUse(Outcome.PutCardInPlay, "Put a creature card from your hand onto the battlefield?", source, game)) {
+            TargetCardInHand target = new TargetCardInHand(StaticFilters.FILTER_CARD_CREATURE_A);
+            if (player.choose(Outcome.PutCardInPlay, target, source.getSourceId(), game)) {
+                Card card = game.getCard(target.getFirstTarget());
+                if (card != null) {
+                    if(player.moveCards(card, Zone.BATTLEFIELD, source, game, false, false, false, null)
+                            && game.getCombat() != null && blockedCreature != null){
+                        CombatGroup attacker = game.getCombat().findGroup(blockedCreature.getId());
+                        Permanent putIntoPlay = game.getPermanent(target.getFirstTarget());
+                        if (putIntoPlay != null && putIntoPlay.isCreature() &&attacker != null) {
+                            game.getCombat().findGroup(blockedCreature.getId()).addBlocker(putIntoPlay.getId(), source.getControllerId(), game);
+                            return true;
+                        }
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public AetherplasmEffect copy() {
+        return new AetherplasmEffect(this);
+    }
+}

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

@@ -29,6 +29,7 @@ public final class Guildpact extends ExpansionSet {
         this.ratioBoosterMythic = 0;
         cards.add(new SetCardInfo("Absolver Thrull", 1, Rarity.COMMON, mage.cards.a.AbsolverThrull.class));
         cards.add(new SetCardInfo("Abyssal Nocturnus", 43, Rarity.RARE, mage.cards.a.AbyssalNocturnus.class));
+        cards.add(new SetCardInfo("Aetherplasm", 22, Rarity.UNCOMMON, mage.cards.a.Aetherplasm.class));
         cards.add(new SetCardInfo("Agent of Masks", 100, Rarity.UNCOMMON, mage.cards.a.AgentOfMasks.class));
         cards.add(new SetCardInfo("Angel of Despair", 101, Rarity.RARE, mage.cards.a.AngelOfDespair.class));
         cards.add(new SetCardInfo("Battering Wurm", 79, Rarity.UNCOMMON, mage.cards.b.BatteringWurm.class));

Mage/src/main/java/mage/abilities/effects/common/DoIfCostPaid.java

@@ -141,6 +141,7 @@ public class DoIfCostPaid extends OneShotEffect {
         String costText = cost.getText();
         if (costText != null
                 && !costText.toLowerCase(Locale.ENGLISH).startsWith("put")
+                && !costText.toLowerCase(Locale.ENGLISH).startsWith("return")
                 && !costText.toLowerCase(Locale.ENGLISH).startsWith("exile")
                 && !costText.toLowerCase(Locale.ENGLISH).startsWith("discard")
                 && !costText.toLowerCase(Locale.ENGLISH).startsWith("sacrifice")