Captain America, Liberator is a rare Legendary Creature — Human Soldier Hero card from Marvel Super Heroes Commander (MSC), collector number 587. Current market price: $0.71 (foil $3.10), TCGplayer market prices via Scryfall.
When Captain America enters, you may search your library for an Equipment card with mana value 3 or less, put it onto the battlefield, then shuffle. Whenever Captain America attacks, for each Equipment attached to him, create a 1/1 white Soldier creature token.