Is Abundant Countryside legal in Standard, Modern, and Commander?

Abundant Countryside is legal in: Legacy, Vintage, Commander.

What type of card is Abundant Countryside?

Abundant Countryside is a Land. Its oracle text reads: "{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.)"