Salim'Rotner, The Savior

(Salim'Rotner, The Savior, is Blue, Black & Green.)
Flying, Deathtouch, Ward - sacrifice a creature.
Create Undead, Mass — Whenever a nonetoken creature dies, you may eternalize it. (Creatures you eternalize this way are both under your control & ownership & have no cost to eternalize.)
Salim'Rotner's power and toughness is equal to
the number of creatures in all graveyard and in
exile.
(Archmagi Sup. Salim'Rotner)