This is the PGA-02 Undine, a prototype frontal combat and multi-role GA created by Sky Duciel to combat the need for a GA for use in the vanguard. But it's its multi-role capabilities that really set it apart. It is the most versatile of any unit. It is completely capable of aquatic function as well as terrestrial and aerial. It can manipulate every weapon designed for a GA in the Lyatnian military, making this the best unit to pit against any challenge any time, anywhere, with anything.