Glittering Frost is a common Snow Enchantment — Aura card from Kaldheim (KHM), collector number 171. Current market price: $0.26 (foil $0.25), TCGplayer market prices via Scryfall.
Enchant land Enchanted land is snow. Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.