Urabrask's Terror

Compleated {p/r} (You may pay 2 life instead of {r} for {p/r}, for each {p/r} paid with 2 life, this creature enters the battlefield with a -1/-1 counter on it)
Flying, Haste
Bloodlust— Whenever Urabrask's Terror attacks, if an opponent was dealt damage by a source you control this turn, it gets +2/+0 until end of turn.