Bruce, the Chunky

{t}: Tap target Human. Put a +1/+1 counter on
Bruce.
If Bruce hasn't had a +1/+1 counter put on it
for the past three turns, then Bruce becomes a Legendary 6/6 Black and Red Creature named "Brucifer" with "Whenever Brucifer attacks,
meow loudly until the opponent decides
not to block."
"Njamajnan aanejaajaan jamamnan"
-Bruce (when hungry)