http://www.furaffinity.net/view/2473551/
Dona's personal Crystal Beast.

Despite its name, this machine is actually smaller than many of the Crystal Beasts of the Winter Lord's Army. Standing at 15m, the Big Dona is more of a power armor directly attached to Dona's nervous system making it a maneuverable unit for making precision strikes. Its main armament are its resonance sabers which use vibrations to tear trough armor as well as the "shrieker" sonic cannons mounted on its forearms.