Sylvia Brightspear is a rare Legendary Creature — Human Knight card from Battlebond (BBD), collector number 10. Current market price: $1.91 (foil $8.17), TCGplayer market prices via Scryfall.
Partner with Khorvath Brightflame (When this creature enters, target player may put Khorvath into their hand from their library, then shuffle.) Double strike Dragons your team controls have double strike.