Necromantic Ritual

Kicker - {b}{b}, Sacrifice a creature.
As an additional cost to cast Necromantic Ritual, sacrifice a creature.
Create a token that's a copy of the sacrificed creature, except it's a 4/4 white Zombie creature. Then, if Necromantic Ritual was kicked, create a token that's a copy of the creature sacrificed to pay the kicker cost, except
it's a 6/6 black Demon creature with flying.