Unit Name: Grave Ark Phantom
Model Number: Unknown
Height: Unknown
Weight: Unknown
Pilot: Berkt
Weapons: Grave Rifle, Scale Boomerang, Split Guided Missiles, Energy Shape, Phantom, and Buster Blade.

It's the result of Grave Ark purging its armor, allowing it to have an increase in attack power and mobility. It's capable of creating dummies to confuse its enemies by using its Phantom attack.

Grave Ark Phantom details