Thorn-Tail Hunter

Enrage - Whenever Thorn-Tail Hunter is dealt damage, flip 2 coins. If both come up heads, put a +1/+1 counter on Thorn-Tail Hunter. if both come up tails, each opponent loses 2 life.
Whenever A creature enters the battlefield, Thorn-Tail Hunter deals 1 damage to that creature. That creature gains haste until end of turn.

"It doesn't back much, but it always fights."