Gunko is officially a celestial dragon from the Manmayer family in One Piece, as revealed by Oda sensei in Volume 112.

With the God Knights, there's no way Scopper can hold back, especially since they have his son kidnapped. Scopper will undoubtedly go all out against these foes and give One Piece fans a fight ...

The God Knights directly serve the upper management of the World Government. Thus, they could have easily aided Loki in his self-proclaimed quest to destroy the world.