[KHM] Implemented Goldspan Dragon (#7348)

* [KHM] Implemented Goldspan Dragon

* [KHM] Goldspan Dragon - Fixed triggered ability

Mage.Sets/src/mage/cards/g/GoldspanDragon.java

@@ -0,0 +1,112 @@
+package mage.cards.g;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
+import mage.abilities.costs.common.SacrificeSourceCost;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.continuous.GainAbilityControlledEffect;
+import mage.abilities.effects.mana.AddManaOfAnyColorEffect;
+import mage.abilities.mana.SimpleManaAbility;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.abilities.keyword.FlyingAbility;
+import mage.abilities.keyword.HasteAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Zone;
+import mage.filter.FilterPermanent;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.token.TreasureToken;
+import mage.game.stack.Spell;
+import mage.game.stack.StackObject;
+
+/**
+ *
+ * @author weirddan455
+ */
+public final class GoldspanDragon extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterPermanent(SubType.TREASURE, "Treasure");
+
+    public GoldspanDragon(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{R}{R}");
+
+        this.subtype.add(SubType.DRAGON);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(4);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Haste
+        this.addAbility(HasteAbility.getInstance());
+
+        // Whenever Goldspan Dragon attacks or becomes the target of a spell, create a Treasure token.
+        this.addAbility(new GoldspanDragonTriggeredAbility());
+
+        // Treasures you control have "{T}, Sacrifice this artifact: Add two mana of any one color."
+        Ability ability = new SimpleManaAbility(Zone.BATTLEFIELD, new AddManaOfAnyColorEffect(2), new TapSourceCost());
+        Cost cost = new SacrificeSourceCost();
+        cost.setText("sacrifice this artifact");
+        ability.addCost(cost);
+        this.addAbility(new SimpleStaticAbility(new GainAbilityControlledEffect(ability, Duration.WhileOnBattlefield, filter)));
+    }
+
+    private GoldspanDragon(final GoldspanDragon card) {
+        super(card);
+    }
+
+    @Override
+    public GoldspanDragon copy() {
+        return new GoldspanDragon(this);
+    }
+}
+
+class GoldspanDragonTriggeredAbility extends TriggeredAbilityImpl {
+
+    GoldspanDragonTriggeredAbility() {
+        super(Zone.BATTLEFIELD, new CreateTokenEffect(new TreasureToken()));
+    }
+
+    private GoldspanDragonTriggeredAbility(final GoldspanDragonTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.DECLARED_ATTACKERS
+                || event.getType() == GameEvent.EventType.TARGETED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        switch (event.getType()) {
+            case DECLARED_ATTACKERS:
+                return game.getCombat().getAttackers().contains(this.getSourceId());
+            case TARGETED:
+                if (event.getTargetId().equals(getSourceId())) {
+                    StackObject sourceObject = game.getStack().getStackObject(event.getSourceId());
+                    return sourceObject instanceof Spell;
+                }
+            default:
+                return false;
+        }
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever {this} attacks or becomes the target of a spell, " + super.getRule();
+    }
+
+    @Override
+    public GoldspanDragonTriggeredAbility copy() {
+        return new GoldspanDragonTriggeredAbility(this);
+    }
+}

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

@@ -62,6 +62,7 @@ public final class Kaldheim extends ExpansionSet {
         cards.add(new SetCardInfo("Gilded Assault Cart", 390, Rarity.UNCOMMON, mage.cards.g.GildedAssaultCart.class));
         cards.add(new SetCardInfo("Glacial Floodplain", 257, Rarity.COMMON, mage.cards.g.GlacialFloodplain.class));
         cards.add(new SetCardInfo("Gladewalker Ritualist", 392, Rarity.UNCOMMON, mage.cards.g.GladewalkerRitualist.class));
+        cards.add(new SetCardInfo("Goldspan Dragon", 139, Rarity.MYTHIC, mage.cards.g.GoldspanDragon.class));
         cards.add(new SetCardInfo("Halvar, God of Battle", 15, Rarity.MYTHIC, mage.cards.h.HalvarGodOfBattle.class));
         cards.add(new SetCardInfo("Hengegate Pathway", 260, Rarity.RARE, mage.cards.h.HengegatePathway.class));
         cards.add(new SetCardInfo("Highland Forest", 261, Rarity.COMMON, mage.cards.h.HighlandForest.class));