Mutable Pupa is a uncommon Creature — Insect card from Alchemy: Edge of Eternities (YEOE), collector number 20.
Evolve Whenever another creature you control enters, this creature perpetually gains flying if that creature has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.