Spellseeker is a rare Creature — Human Wizard card from Battlebond (BBD), collector number 41. Current market price: $16.93 (foil $24.47), TCGplayer market prices via Scryfall.
When this creature enters, you may search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle.