[TOKEN] Auspicious Starrix

Mutate {5}{g} (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.)
—
Whenever this creature mutates, exile cards from
the top of your library until you exile X
permanent cards, where X is the number of times
this creature has mutated. Put those permanent
cards onto the battlefield.