Produced at the end of the Calamity War era, Grimgerde is one of the MS that adapted Valkyrie Frame, which is a frame that is easy to operate compared to other MS in the same era. The design is very simple and allows it to be the main MS in battle. But in its development in the same era as the Gundam Frame, not many people knew about this frame. Gjallarhorm used this frame as a basis for developing Graze variants.
