Model number: unknown
Code name: ArcGain
Unit type: W-series android
Manufacturer: Shadow Mirror
Operator(s): Formido Hiem; Einst
First deployment: unknown
Dimensions: head height ~3 meters
Armor materials: unknown material with organic properties
Equipment and design features: AI unit for independent action; teleportation system; self-regenerating armor
Fixed armaments: 2 x arm blade, mounted on forearms; 2 x leg cannon, mounted in soles of feet
Optional hand armaments: none
A W-series machine built by the Shadow Mirrors, the ArcGain was a miniaturized version of Axel Almer’s EG-X Soulgain. Unlike the rest of the W-series, the ArcGain was not built to resemble a human. Like the Soulgain, the ArcGain had two blades on its arms, and it fought using martial arts. It also had cannons in each foot, making its kicks more powerful. It could teleport independently, and was programmed to serve W00, Haken Browning.
The ArcGain was on board the battleship Neverland that was used to test the dimensional teleportation device, System XN. The half of the ship containing the ArcGain crashed on the world of Formido Heim, where the ArcGain was reprogrammed. The ArcGain, along with the Weissritter Abend and the Alteisen Nacht, accompanied Formido Heim’s king, Stahl Deib, through a sealed Cross Gate into the world of the Einst. Deib and the three machines eventually returned; however, they had been corrupted by the Einst. The three machines received an increase in combat ability, along with self-regenerating armor. Deib began the Ten Year War against the world of Elfetale shortly afterward, and the ArcGain caused much devastation during the war. Realizing his king had changed, Ezel Granada, leader of Formido Heim’s elite Orchestral Army, revolted. Ezel managed to kill the Einst Deib, but the Orchestral Army was almost completely wiped out. The Ten Year War ended, and the ArcGain, Abend, and Nacht disappeared.
Three years later, the ArcGain showed itself again with unknown motives. Haken Browning, now a bounty hunter, encountered the ArcGain on two separate occasions. The Einst managed to keep the ArcGain under control by using copies of Haken, whom the ArcGain was programmed to obey. After being defeated during the second encounter, the ArcGain self-destructed.
First appearance: Super Robot Wars OG Saga: Endless Frontier
Original mechanical designer: Kazue Saito