Gamma Grotesque

Creature — Gamma Horror Villain — {2}{G}

Vigilance (Attacking doesn't cause this creature to tap.) Power-up — {4}{G}{G}: Put three +1/+1 counters on this creature. Then draw a card for each creature you control with a counter on it. (Activate each power-up ability only once. Reduce the cost by its mana cost if it entered this turn.)