T'vienat Bloodthorn

Flying, haste
Bloodthirst 1 (If an opponent was dealt damage
this turn, this creature enters the battlefield with a
+1/+1 counter on it.)
At the beginning of your end step, create a 1/0
red Insect creature token with bloodthirst 1 for
each +1/+1 counter on T'vienat Bloodthorn.