Scourge of the Black Woods

Hounds you control have undying (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
Whenever Scourge of the Black Woods or another Hound enters the battlefield under your control, that creature fights target creature an opponent controls.
You'd better hope it kills you the first time.