Avalanche Caller is a uncommon Snow Creature — Human Wizard card from Jumpstart 2022 (J22), collector number 274. Current market price: $0.29, TCGplayer market prices via Scryfall.
{2}: Target snow land you control becomes a 4/4 Elemental creature with hexproof and haste until end of turn. It's still a land. (A creature with hexproof can't be the target of spells or abilities your opponents control.)