Pinkie Pie is so proud of Marble for ascending to alicornhood. Unlike Twilight, who has Celestia’s body shape, Marble has a body shape similar to that of Cadence. Marble has also gained changeling abilities, so that she can shift her form and change into anypony of her choosing. She is the second of the mane six’s siblings to have kids. She is the first pony to be married to a changeling.