Vulpikeet is a common Creature — Fox Bird card from Magic Online Promos (PRM), collector number 80973.
Mutate {2}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Flying Whenever this creature mutates, put a +1/+1 counter on it.