Fervent Champion is a rare Creature — Human Knight card from Throne of Eldraine Promos (PELD), collector number 124p. Current market price: $0.30 (foil $2.00), TCGplayer market prices via Scryfall.
First strike, haste Whenever this creature attacks, another target attacking Knight you control gets +1/+0 until end of turn. Equip abilities you activate that target this creature cost {3} less to activate.