Damocles

The Damocles, also called The Sword of Akasha is a large and mysterious hovering temple-like structure built by Hokarou Hyuga and was locked away due to its immense power. It has been said that its purpose was to unite the world but Hokarou died before his plan coming to fruition. Its design resembles a combination of ancient Roman and Celtic architecture. However, this is revealed to be only the platform. The Sword of Akasha is actually a large megastructure resembling a Dyson Sphere that encompasses the temple. The system is located in the World of C. It is commonly depicted as floating in billowing clouds with no land or sky in sight. It also seems unusually close to a planet-like object. This is revealed to be merely an illusion that hides the actual structure itself.

It is also rendered nigh indestructible due to the Blaze Luminous that encompasses the entire fortress. It does however create a small opening whenever it launches a warhead. As part of Seireitou's "plans", he intends to accelerate Damocles 300km above the Lost Land's Western Ocean and simultaneously launch the F.L.E.I.J.A. warheads at specified targets around the world, forcing them into submission to his will. However his plan was thwarted and the Damocles sent to the sun to be destroyed.