Bygone Bishop is a rare Creature — Spirit Cleric card from Shadows over Innistrad Promos (PSOI), collector number 8s. Current market price: — (foil $3.22), TCGplayer market prices via Scryfall.
Flying Whenever you cast a creature spell with mana value 3 or less, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")