Battershield Warrior is a uncommon Creature — Human Warrior card from Kaldheim (KHM), collector number 2. Current market price: $0.14 (foil $0.21), TCGplayer market prices via Scryfall.
Boast — {1}{W}: Creatures you control get +1/+1 until end of turn. (Activate only if this creature attacked this turn and only once each turn.)