Hailstorm Valkyrie is a uncommon Snow Creature — Angel Wizard card from Kaldheim (KHM), collector number 97. Current market price: $0.26 (foil $0.33), TCGplayer market prices via Scryfall.
Flying, trample {S}{S}: This creature gets +2/+2 until end of turn. ({S} can be paid with one mana from a snow source.)