implement [LCI] Out of Air

Mage.Sets/src/mage/cards/o/OutOfAir.java

@@ -0,0 +1,73 @@
+package mage.cards.o;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.effects.common.CounterTargetEffect;
+import mage.abilities.effects.common.cost.SpellCostReductionSourceEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.stack.StackObject;
+import mage.target.Target;
+import mage.target.TargetSpell;
+
+import java.util.Collection;
+import java.util.UUID;
+
+/**
+ * @author xenohedron
+ */
+public final class OutOfAir extends CardImpl {
+
+    public OutOfAir(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{2}{U}{U}");
+
+        // This spell costs {2} less to cast if it targets a creature spell.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.ALL, new SpellCostReductionSourceEffect(2, OutOfAirCondition.instance).setCanWorksOnStackOnly(true)
+        ).setRuleAtTheTop(true));
+
+        // Counter target spell.
+        this.getSpellAbility().addEffect(new CounterTargetEffect());
+        this.getSpellAbility().addTarget(new TargetSpell());
+
+    }
+
+    private OutOfAir(final OutOfAir card) {
+        super(card);
+    }
+
+    @Override
+    public OutOfAir copy() {
+        return new OutOfAir(this);
+    }
+}
+
+enum OutOfAirCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        StackObject sourceSpell = game.getStack().getStackObject(source.getSourceId());
+        if (sourceSpell == null) {
+            return false;
+        }
+        return sourceSpell
+                .getStackAbility()
+                .getTargets()
+                .stream()
+                .map(Target::getTargets)
+                .flatMap(Collection::stream)
+                .map(game::getSpell)
+                .anyMatch(spell -> spell != null && spell.isCreature(game));
+    }
+
+    @Override
+    public String toString() {
+        return "it targets a creature spell";
+    }
+
+}

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

@@ -167,6 +167,7 @@ public final class TheLostCavernsOfIxalan extends ExpansionSet {
         cards.add(new SetCardInfo("Oltec Archaeologists", 27, Rarity.COMMON, mage.cards.o.OltecArchaeologists.class));
         cards.add(new SetCardInfo("Oltec Cloud Guard", 28, Rarity.COMMON, mage.cards.o.OltecCloudGuard.class));
         cards.add(new SetCardInfo("Orazca Puzzle-Door", 68, Rarity.COMMON, mage.cards.o.OrazcaPuzzleDoor.class));
+        cards.add(new SetCardInfo("Out of Air", 69, Rarity.COMMON, mage.cards.o.OutOfAir.class));
         cards.add(new SetCardInfo("Palani's Hatcher", 237, Rarity.RARE, mage.cards.p.PalanisHatcher.class));
         cards.add(new SetCardInfo("Panicked Altisaur", 159, Rarity.COMMON, mage.cards.p.PanickedAltisaur.class));
         cards.add(new SetCardInfo("Pathfinding Axejaw", 206, Rarity.COMMON, mage.cards.p.PathfindingAxejaw.class));