Durgack, Deathrite Elite

Cumulative upkeep - Exile target card from
a graveyard. (At the beginning of your upkeep,
if this permanent is on the battlefield, put an age counter on this permanent. Then you may exile
a card from a graveyard for each age counter on
it. If you don’t, sacrifice it.)
During each of your turns, you may cast up
to three permanents exiled with Durgack, Deathrite Elite.