Lumbering Falls is a rare Land card from Commander 2021 (C21), collector number 299. Current market price: $0.27, TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {G} or {U}. {2}{G}{U}: Until end of turn, this land becomes a 3/3 green and blue Elemental creature with hexproof. It's still a land.