Rashel, Fist of Torm is a rare Legendary Creature — Human Knight card from Secret Lair Drop (SLD), collector number 1237. Current market price: $17.26 (foil $21.08), TCGplayer market prices via Scryfall.
Double strike Auras you control have exalted. (Whenever a creature you control attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents you control.)