An Unearthly Child is a rare Enchantment — Saga card from Doctor Who (WHO), collector number 640. Current market price: — (foil $3.55), TCGplayer market prices via Scryfall.
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II, III — Reveal cards from the top of your library until you reveal a Doctor card, a card with doctor's companion, or a Vehicle card. Put that card into your hand and the rest on the bottom of your library in a random order.