Mythezia, Pestilence Priest

Deathtouch
Whenever you sacrifice a creature, put a
pestilence token onto target nonland permanent.
When a nonland permant with a pestilence
counter on it gets sent to the graveyard, exile it
instead draw a card and make a 1/1 Pest
creature token copy of it with "When this
creature dies, you gain 1 life." .