Nethroi, Apex of Death - 163 M DMC

Mutate {4}{G/W}{B}{B} (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.)
Deathtouch, lifelink
Whenever this creature mutates, return any number of target creature cards with total power 10 or less from your graveyard to the battlefield.

mythic
Legendary Creature — Cat Nightmare Beast
From the Magic: The Gathering set Dominaria United Commander.