Mysterio, Master of Illusion is a rare Legendary Creature — Human Villain card from Marvel's Spider-Man Promos (PSPM), collector number 37s. Current market price: — (foil $0.95), TCGplayer market prices via Scryfall.
When Mysterio enters, create a 3/3 blue Illusion Villain creature token for each nontoken Villain you control. Exile those tokens when Mysterio leaves the battlefield.