Restless Prairie is a rare Land card from The Lost Caverns of Ixalan (LCI), collector number 281. Current market price: $0.35 (foil $0.40), TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {G} or {W}. {2}{G}{W}: This land becomes a 3/3 green and white Llama creature until end of turn. It's still a land. Whenever this land attacks, other creatures you control get +1/+1 until end of turn.