Deathtouch

Whenever Wonir, Astral Saboteur deals combat damage to a player, you may exile Wonir. If you do, return it to the battlefield under its owner's control at the start of your next turn.

{2}{B}, Exile Wonir, then return it to the battlefield tapped under its owner's control: Target creature gets -X/-X until end of turn, where X is the number of cards in its controller's hand.