冰寒毛虫 (Chillerpillar) (zhs)
Snow Creature - Insect
| Power/Toughness:
3 / 3
(CMC 4)
: Monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous. can be paid with one mana from a snow source.)
As long as Chillerpillar is monstrous, it has flying.