Abundant Countryside is a rare Land card from Lorwyn Eclipsed Commander (ECC), collector number 22. Current market price: $3.51, TCGplayer market prices via Scryfall.
{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell. {6}, {T}: Create a 1/1 colorless Shapeshifter creature token with changeling. (It's every creature type.)