Captain America, Team Leader is a mythic Legendary Creature — Human Soldier Hero card from Marvel Super Heroes Commander (MSC), collector number 5. Current market price: $2.78 (foil $0.66), TCGplayer market prices via Scryfall.
Whenever another Hero you control enters, it gains vigilance and haste until end of turn. Put a +1/+1 counter on that Hero and a +1/+1 counter on Captain America.