Artifact Creature — Golem Construct - (uncommon)
Megasunburst (This enters the battlefield with two +1/+1 counters on it for each color of mana spent to cast it)
Remove three +1/+1 counters from Sawtooth Avenger: Sawtooth Avenger gains your choice of deathtouch, lifelink, or menace until end of turn.
