Aurelia, the Law Above is a rare Legendary Creature — Angel card from Murders at Karlov Manor (MKM), collector number 188. Current market price: $2.63 (foil $2.66), TCGplayer market prices via Scryfall.
Flying, vigilance, haste Whenever a player attacks with three or more creatures, you draw a card. Whenever a player attacks with five or more creatures, Aurelia deals 3 damage to each of your opponents and you gain 3 life.