When this Case enters the battlefield, destroy up to one target creature that was dealt damage this turn. To solve — Three or more creature cards were put into graveyards from anywhere this turn. (If unsolved, solve at the beginning of your end step.) Solved — This Case is a 4/4 Gorgon creature with deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) and lifelink (Damage dealt by the creature also causes its controller to gain that much life.) in addition to its other types.