Wojek Investigator is a rare Creature — Angel Detective card from Murders at Karlov Manor (MKM), collector number 340. Current market price: $0.29 (foil $0.37), TCGplayer market prices via Scryfall.
Flying, vigilance At the beginning of your upkeep, investigate once for each opponent who has more cards in hand than you. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")