Jabberwocky

Flying
Jabberwocky enters the battlefield with two
+1/+1 counters on it.
Sacrifice a creature: Put a +1/+1 counter on Jabberwocky.
Remove two +1/+1 counters from Jabberwocky: Destroy target creature.
"Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!"