Colossal Chiroptera

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two
+1/+1 counters on it.)
Flying, Swoop(When Colossal Chiroptera blocks, remove all +1/+1 counters from it. It deals damage equal the number of counters removed this way to target attacking creature.)
Whenever another creature dies, put a +1/+1 counter on Colossal Chiroptera.