Radiant Solar is a rare Creature — Angel card from Forgotten Realms Commander (AFC), collector number 9. Current market price: $6.86, TCGplayer market prices via Scryfall.
Flying, lifelink Whenever this creature or another nontoken creature you control enters, venture into the dungeon. (Enter the first room or advance to the next room.) {W}, Discard this card: Venture into the dungeon and you gain 3 life.