Secret Identity is a uncommon Instant card from Marvel's Spider-Man (SPM), collector number 43. Current market price: $0.25 (foil $0.27), TCGplayer market prices via Scryfall.
Choose one — • Conceal — Until end of turn, target creature you control becomes a Citizen with base power and toughness 1/1 and gains hexproof. • Reveal — Until end of turn, target creature you control becomes a Hero with base power and toughness 3/4 and gains flying and vigilance.