Alpine Moon is a rare Enchantment card from Core Set 2019 Promos (PM19), collector number 128s. Current market price: — (foil $1.44), TCGplayer market prices via Scryfall.
As this enchantment enters, choose a nonbasic land card name. Lands your opponents control with the chosen name lose all land types and abilities, and they gain "{T}: Add one mana of any color."