Alluring Succubus

Flying
Enslave {b}{b}{b} ({b}{b}{b}: Gain control of target creature with toughness less than or equal to this creature's power. You lose life equal to that creature's converted mana cost.)
Whenever you gain control of a creature with Alluring Succubus's Enslave ability, sacrifice it at the beginning of your next end step.
"...But you got what you wanted, didn't you?"