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

I - Search your library for a Doctor card, reveal it, put it into your hand, then shuffle.

II - Create a Food token and a 1/1 white Human creature token with "Doctor spells you cast cost less to cast."

III - Create a token that's a copy of target creature, except it's a legendary Alien named Prisoner Zero.