Captain Mar-Vell, Space-Born is a uncommon Legendary Creature — Kree Soldier Hero card from Marvel Super Heroes (MSH), collector number 12. Current market price: $0.14 (foil $0.25), TCGplayer market prices via Scryfall.
Flying, vigilance Cosmic Awareness — As long as an opponent has cast a spell this turn, you may cast spells as though they had flash.