Astrid Peth is a rare Legendary Creature — Human card from Doctor Who (WHO), collector number 925. Current market price: — (foil $12.94), TCGplayer market prices via Scryfall.
Whenever Astrid Peth enters or attacks, create a Food token. Brand-new Sky — Whenever you sacrifice a Clue or Food, Astrid Peth explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)