Super Strength is a common Enchantment — Aura card from Marvel Super Heroes (MSH), collector number 189. Current market price: $0.15 (foil $0.20), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +4/+4 and has trample and ward {1}. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)