Gnottvold Slumbermound is a uncommon Land card from Kaldheim (KHM), collector number 258. Current market price: $0.22 (foil $0.23), TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {R}. {3}{R}{G}{G}, {T}, Sacrifice this land: Destroy target land. Create a 4/4 green Troll Warrior creature token with trample.