Malk Unbound, Pheroslaver

{b}{b}{b}, {ut} : Put a slave counter onto target
creature you control.
Whenever Malk Unbound, Pheroslaver would
die or be exiled from the battlefield, you may sacrifice a creature with a slave counter on it.
If you do, return Malk Unbound, Pheroslaver
onto the battlefield.
"Obedience is expected ; loyalty must be induced."