Goblin Dentist

{2}{r}, {t}: Put a -1/-1 counter on target creature and a Tooth counter on Goblin Dentist.
Remove three Tooth counters from Goblin Dentist: Put two +1/+1 counters on Goblin Dentist, and Goblin Dentist gains menace until end of turn.
Most people don't know goblins have dentists. It's because only the crazy goblins want to become dentists, and the other goblins are afraid of good dental hygiene.