Syr Faren, the Hengehammer is a uncommon Legendary Creature — Human Knight card from Throne of Eldraine (ELD), collector number 177. Current market price: $0.25 (foil $0.29), TCGplayer market prices via Scryfall.
Whenever Syr Faren attacks, another target attacking creature gets +X/+X until end of turn, where X is Syr Faren's power.