Sith's Assurer

Whenever another creature dies, put a soul
counter on Sith's Assurer.
{t}, Remove X soul counters from Sith's Assurer: Target player loses X life. If you control a
Demigod or God, return target creature card with
converted mana cost X from a graveyard to the battlefield tapped under your control instead.
"Your obedience is the only constant."