Hire a Crew is a common Instant card from Marvel Super Heroes (MSH), collector number 134. Current market price: $0.07 (foil $0.18), TCGplayer market prices via Scryfall.
Create a 2/1 black Villain creature token with menace, then creatures you control get +1/+0 until end of turn. (A creature with menace can't be blocked except by two or more creatures.)