Yellowjacket, Heartless Marauder is a uncommon Legendary Creature — Human Rogue Villain card from Marvel Super Heroes (MSH), collector number 123. Current market price: $0.19 (foil $0.26), TCGplayer market prices via Scryfall.
Flying Whenever another Villain you control enters, Yellowjacket gets +1/+0 and gains lifelink until end of turn.