Aryel, Knight of Windgrace is a rare Legendary Creature — Human Knight card from Dominaria (DOM), collector number 192. Current market price: $0.32 (foil $0.68), TCGplayer market prices via Scryfall.
Vigilance {2}{W}, {T}: Create a 2/2 white Knight creature token with vigilance. {B}, {T}, Tap X untapped Knights you control: Destroy target creature with power X or less.