Svella, Ice Shaper is a uncommon Legendary Snow Creature — Troll Warrior card from Kaldheim (KHM), collector number 331. Current market price: $0.23 (foil $0.29), TCGplayer market prices via Scryfall.
{3}, {T}: Create a colorless snow artifact token named Icy Manalith with "{T}: Add one mana of any color." {6}{R}{G}, {T}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.