{4}{S}{S}: Monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous. {S} can be paid with one mana from a snow permanent.)
As long as Chillerpillar is monstrous, it has flying.
From its cocoon, a flurry takes flight.
Artist(s): Suzanne Helmigh