Fight as One is a uncommon Instant card from Ikoria: Lair of Behemoths (IKO), collector number 12. Current market price: $0.15 (foil $0.32), TCGplayer market prices via Scryfall.
Choose one or both — • Target Human creature you control gets +1/+1 and gains indestructible until end of turn. • Target non-Human creature you control gets +1/+1 and gains indestructible until end of turn.