Heroic Champion - Gandiva (UTR) (Ultimate Rare) - Abyss Rising Unlimited

2 Level 4 Warrior-Type monsters

Once per turn, when a Level 4 or lower monster(s) is Special Summoned to your opponent's side of the field (except during the Damage Step). You can detach 1 Xyz Material from this card; destroy that Special Summoned monster(s).