Anithrian the Unborn Plague

Other zombies you control get +1/+1
{3}{p/b}{p/b}{t}, Sacrifice a creature: Create a Crest of
Blood Legendary Enchantment token.
{3}{p/r}{p/r}{t}, Sacrifice a creature: Create a Crest of
Flame Legendary Enchantment token.
If Anithrian would go into the graveyard,
exile him instead.