[TDC] Implement Neriv, Crackling Vanguard

Mage.Sets/src/mage/cards/n/NerivCracklingVanguard.java

@@ -0,0 +1,180 @@
+package mage.cards.n;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.AttacksTriggeredAbility;
+import mage.abilities.common.EntersBattlefieldAbility;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalAsThoughEffect;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.asthought.PlayFromNotOwnHandZoneTargetEffect;
+import mage.cards.Card;
+import mage.cards.Cards;
+import mage.constants.*;
+import mage.abilities.keyword.FlyingAbility;
+import mage.abilities.keyword.DeathtouchAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.game.Game;
+import mage.game.permanent.PermanentToken;
+import mage.game.permanent.token.GoblinToken;
+import mage.players.Player;
+import mage.target.targetpointer.FixedTargets;
+import mage.util.CardUtil;
+import mage.watchers.common.AttackedThisTurnWatcher;
+
+/**
+ *
+ * @author Jmlundeen
+ */
+public final class NerivCracklingVanguard extends CardImpl {
+
+    public NerivCracklingVanguard(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{R}{W}{B}");
+        
+        this.supertype.add(SuperType.LEGENDARY);
+        this.subtype.add(SubType.SPIRIT);
+        this.subtype.add(SubType.DRAGON);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(4);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Deathtouch
+        this.addAbility(DeathtouchAbility.getInstance());
+
+        // When Neriv enters, create two 1/1 red Goblin creature tokens.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new CreateTokenEffect(new GoblinToken(false), 2)));
+
+        // Whenever Neriv attacks, exile a number of cards from the top of your library equal to the number of differently named tokens you control. During any turn you attacked with a commander, you may play those cards.
+        this.addAbility(new AttacksTriggeredAbility(new NerivCracklingVanguardEffect()));
+    }
+
+    private NerivCracklingVanguard(final NerivCracklingVanguard card) {
+        super(card);
+    }
+
+    @Override
+    public NerivCracklingVanguard copy() {
+        return new NerivCracklingVanguard(this);
+    }
+}
+
+class NerivCracklingVanguardEffect extends OneShotEffect {
+
+    NerivCracklingVanguardEffect() {
+        super(Outcome.Benefit);
+        staticText = "exile a number of cards from the top of your library equal to the number of " +
+                "differently named tokens you control. During any turn you attacked with a commander, you may play those cards.";
+    }
+
+    private NerivCracklingVanguardEffect(final NerivCracklingVanguardEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public NerivCracklingVanguardEffect copy() {
+        return new NerivCracklingVanguardEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        int tokenNameCount = NerivDynamicValue.instance.calculate(game, source, this);
+        if (controller == null || tokenNameCount == 0) {
+            return false;
+        }
+        Set<Card> cards = controller.getLibrary().getTopCards(game, tokenNameCount);
+        if (cards.isEmpty()) {
+            return false;
+        }
+        controller.moveCardsToExile(cards, source, game, true, CardUtil.getExileZoneId(game, source), CardUtil.getSourceName(game, source));
+        // copy ability in case Neriv leaves the battlefield. Card should be playable any turn you've attacked with a commander.
+        Ability copiedAbility = source.copy();
+        copiedAbility.newId();
+        copiedAbility.setControllerId(source.getControllerId());
+        PlayFromNotOwnHandZoneTargetEffect playFromExile = new PlayFromNotOwnHandZoneTargetEffect(Zone.EXILED, Duration.EndOfGame);
+        playFromExile.setTargetPointer(new FixedTargets(cards, game));
+        ConditionalAsThoughEffect playOnlyIfAttackedWithCommander = new ConditionalAsThoughEffect(playFromExile, new CommanderAttackedThisTurnCondition(copiedAbility));
+        playOnlyIfAttackedWithCommander.setTargetPointer(new FixedTargets(cards, game));
+        game.addEffect(playOnlyIfAttackedWithCommander, copiedAbility);
+        return true;
+    }
+}
+
+enum NerivDynamicValue implements DynamicValue {
+    instance;
+
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return (int) game.getBattlefield().getAllActivePermanents(sourceAbility.getControllerId()).stream()
+                .filter(permanent -> permanent instanceof PermanentToken)
+                .map(MageObject::getName)
+                .distinct()
+                .count();
+    }
+
+    @Override
+    public DynamicValue copy() {
+        return instance;
+    }
+
+    @Override
+    public String getMessage() {
+        return "X";
+    }
+}
+
+class CommanderAttackedThisTurnCondition implements Condition {
+
+    private Ability ability;
+
+    CommanderAttackedThisTurnCondition(Ability source) {
+        this.ability = source;
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        // in case Neriv leaves the battlefield, the ability must be referenced for controller information
+        if (ability == null) {
+            ability = source;
+        }
+        // your turn
+        if (!ability.isControlledBy(game.getActivePlayerId())) {
+            return false;
+        }
+        Player controller = game.getPlayer(ability.getControllerId());
+        if (controller == null) {
+            return false;
+        }
+        // attacked with Commander
+        // note that the MOR object doesn't work well with LKI call when checking for the subtype, thus we check the LKI permanent in the battlefield
+        Set<UUID> commanderIds = game.getPlayerList()
+                .stream()
+                .map(game::getPlayer)
+                .filter(Objects::nonNull)
+                .map(player -> game.getCommandersIds(player, CommanderCardType.COMMANDER_OR_OATHBREAKER, true))
+                .flatMap(Collection::stream)
+                .collect(Collectors.toSet());
+        AttackedThisTurnWatcher watcher = game.getState().getWatcher(AttackedThisTurnWatcher.class);
+        return watcher != null && watcher.getAttackedThisTurnCreaturesPermanentLKI()
+                .stream()
+                .filter(Objects::nonNull)
+                .anyMatch(permanent -> commanderIds.contains(permanent.getId()));
+    }
+
+    @Override
+    public String toString() {
+        return "During that turn you attacked with a Commander";
+    }
+}

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

@@ -225,6 +225,7 @@ public final class TarkirDragonstormCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Narset's Reversal", 92, Rarity.RARE, mage.cards.n.NarsetsReversal.class));
         cards.add(new SetCardInfo("Necromantic Selection", 189, Rarity.RARE, mage.cards.n.NecromanticSelection.class));
         cards.add(new SetCardInfo("Necropolis Fiend", 190, Rarity.RARE, mage.cards.n.NecropolisFiend.class));
+        cards.add(new SetCardInfo("Neriv, Crackling Vanguard", 6, Rarity.MYTHIC, mage.cards.n.NerivCracklingVanguard.class));
         cards.add(new SetCardInfo("Nesting Dragon", 225, Rarity.RARE, mage.cards.n.NestingDragon.class));
         cards.add(new SetCardInfo("Nogi, Draco-Zealot", 226, Rarity.MYTHIC, mage.cards.n.NogiDracoZealot.class));
         cards.add(new SetCardInfo("Noxious Gearhulk", 191, Rarity.MYTHIC, mage.cards.n.NoxiousGearhulk.class));