Battle at the Helvault [Commander Masters]

(As this Saga enters and after your drawe step, add a lore counter Sacrifice after III.)

I - II | For each player, exile up to one target non-Saga, nonland permanent that player controls until Battle at the Helvault leaves the battlefield.

III | Create Avacyn, a legendary 8/8 white Angel creature token with flying, vigilance, and indestructible.