[MOC] Implement Wand of the Worldsoul with adapted code from #10061

Mage.Sets/src/mage/cards/w/WandOfTheWorldsoul.java

@@ -0,0 +1,139 @@
+package mage.cards.w;
+
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTappedAbility;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.abilities.keyword.ConvokeAbility;
+import mage.abilities.mana.WhiteManaAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.stack.Spell;
+import mage.game.stack.StackObject;
+import mage.players.Player;
+import mage.util.CardUtil;
+import mage.watchers.Watcher;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * @author PurpleCrowbar
+ */
+public final class WandOfTheWorldsoul extends CardImpl {
+
+    public WandOfTheWorldsoul(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT}, "{2}{W}");
+
+        // Wand of the Worldsoul enters the battlefield tapped.
+        this.addAbility(new EntersBattlefieldTappedAbility());
+
+        // {T}: Add {W}.
+        this.addAbility(new WhiteManaAbility());
+
+        // {T}: The next spell you cast this turn has convoke.
+        this.addAbility(new SimpleActivatedAbility(Zone.BATTLEFIELD, new WandOfTheWorldsoulEffect(), new TapSourceCost()),
+                new WandOfTheWorldsoulWatcher());
+    }
+
+    private WandOfTheWorldsoul(final WandOfTheWorldsoul card) {
+        super(card);
+    }
+
+    @Override
+    public WandOfTheWorldsoul copy() {
+        return new WandOfTheWorldsoul(this);
+    }
+}
+class WandOfTheWorldsoulEffect extends ContinuousEffectImpl {
+
+    private int spellsCast;
+    private final Ability convokeAbility = new ConvokeAbility();
+
+    WandOfTheWorldsoulEffect() {
+        super(Duration.EndOfTurn, Layer.AbilityAddingRemovingEffects_6, SubLayer.NA, Outcome.AddAbility);
+        staticText = "the next spell you cast this turn has convoke";
+    }
+
+    private WandOfTheWorldsoulEffect(final WandOfTheWorldsoulEffect effect) {
+        super(effect);
+        this.spellsCast = effect.spellsCast;
+    }
+
+    @Override
+    public void init(Ability source, Game game) {
+        super.init(source, game);
+        WandOfTheWorldsoulWatcher watcher = game.getState().getWatcher(WandOfTheWorldsoulWatcher.class);
+        if (watcher != null) {
+            spellsCast = watcher.getCount(source.getControllerId());
+        }
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        WandOfTheWorldsoulWatcher watcher = game.getState().getWatcher(WandOfTheWorldsoulWatcher.class);
+        if (watcher == null) {
+            return false;
+        }
+
+        //check if a spell was cast before
+        if (watcher.getCount(source.getControllerId()) > spellsCast) {
+            discard(); // only one use
+            return false;
+        }
+
+        //check cast for spell and add convoke
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null) {
+            for (StackObject stackObject : game.getStack()) {
+                if ((stackObject instanceof Spell) && !stackObject.isCopy() && stackObject.isControlledBy(source.getControllerId())) {
+                    Spell spell = (Spell) stackObject;
+                    game.getState().addOtherAbility(spell.getCard(), convokeAbility);
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public WandOfTheWorldsoulEffect copy() {
+        return new WandOfTheWorldsoulEffect(this);
+    }
+}
+
+class WandOfTheWorldsoulWatcher extends Watcher {
+
+    private final Map<UUID, Integer> playerMap = new HashMap<>();
+
+    WandOfTheWorldsoulWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() != GameEvent.EventType.SPELL_CAST) {
+            return;
+        }
+        Spell spell = game.getSpell(event.getSourceId());
+        if (spell != null) {
+            playerMap.compute(event.getPlayerId(), CardUtil::setOrIncrementValue);
+        }
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        playerMap.clear();
+    }
+
+    int getCount(UUID playerId) {
+        return playerMap.getOrDefault(playerId, 0);
+    }
+}

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

@@ -332,6 +332,8 @@ public final class MarchOfTheMachineCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Vodalian Wave-Knight", 43, Rarity.RARE, mage.cards.v.VodalianWaveKnight.class));
         cards.add(new SetCardInfo("Vona, Butcher of Magan", 342, Rarity.MYTHIC, mage.cards.v.VonaButcherOfMagan.class));
         cards.add(new SetCardInfo("Vulpine Harvester", 19, Rarity.RARE, mage.cards.v.VulpineHarvester.class));
+        cards.add(new SetCardInfo("Wand of the Worldsoul", 20, Rarity.RARE, mage.cards.w.WandOfTheWorldsoul.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Wand of the Worldsoul", 107, Rarity.RARE, mage.cards.w.WandOfTheWorldsoul.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Wayfarer's Bauble", 389, Rarity.COMMON, mage.cards.w.WayfarersBauble.class));
         cards.add(new SetCardInfo("Wear // Tear", 343, Rarity.UNCOMMON, mage.cards.w.WearTear.class));
         cards.add(new SetCardInfo("Weirding Wood", 315, Rarity.UNCOMMON, mage.cards.w.WeirdingWood.class));