This spell can't be countered. Choose a nonland card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles.
When Slaughter Specialist enters the battlefield, each opponent creates a 1/1 white Human creature token. Whenever a creature an opponent controls dies, put a +1/+1 counter on Slaughter Specialist.
Whenever you sacrifice a permanent, Slaughter-Priest of Mogis gets +2/+0 until end of turn. {2}, Sacrifice another creature or an enchantment: Slaughter-Priest of Mogis gains first strike until end of turn.
"Mogis is pleased by this offering. Bring him more!"