Mallow, Woodland Spirit

Creature tokens you control have vigilance.
At the beginning of your upkeep, populate.
{w}{w},{t}: Create a 2/2 white Elk creature token.
{u}{w},{t}: Create a 1/1 white and blue Bird
creature token with flying.
{u}{u},{t}: Create a 1/1 blue Otter creature token
with hexproof.