Fiction:Overmaster Grell

Overmaster Grell is the supreme overlord of the powerful Omega Hive that was once a normal Grox until his mortal body became nothing, so instead of his mind joining his body in death, his consciousness transferred into a powerful robot named the Obliterax. Grell was part of the Omega Fleet until it lost contact with the main grox empire. He was who formed the Omega Pact, he is who made the alliance with the powerful Ascenders. He is who led them to salvation.