Elixir for the Thirstless

{b}, {t}, sacrifice Elixir for the Thirstless:
exile target creature. If it was a black
creature, it's controller puts a 4/4 white
Angel creature token with flying onto the
battlefield. If it was not a black creature,
it's controller puts a 2/2 black Zombie
creature token into the battlefield.
...will you drink the lifeblood of the dead?