The Eleventh Hour (646) [Doctor Who]

(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 {1} less to cast." III — Create a token that's a copy of target creature, except it's a legendary Alien named Prisoner Zero.