Tymaret Calls the Dead - Theros Beyond Death

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

I, II — Mill three cards. Then you may exile a creature or enchantment card from your graveyard. If you do, create a 2/2 black Zombie creature token.

III — You gain X life and scry X, where X is the number of Zombies you control.