Demonic Consultation is a rare Instant card from Secret Lair Countdown (SLC), collector number 4. Current market price: $7.94 (foil $11.85), TCGplayer market prices via Scryfall.
Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.