Shackle Slinger [Outlaws of Thunder Junction] – Near Mint

Whenever you cast your second spell each turn, choose target creature an opponent controls. If it’s tapped, put a stun counter on it. Otherwise, tap it. (If a permanent with a stun counter would become untapped, remove one from it instead.) Even when he missed the wrists, a pair of thundercuffs to the head got the job done.