306 A Chaotic Battle

Sky Fortress.

That was just a name that Joshua and his friends gave it out of convenience. To be more accurate, it should be called the 'Purging Core Airborne Unit'. They were basically the World Harmonic Circles that was tainted by the Evil God and remolded into the form of terrifying fortresses that floated in the sky, used to eliminate lives in all the worlds.

It appeared in a regular hexagonal shape. There were six runes engraved on its base which had the ability to 'absorb', 'charge', 'convert', 'unleash', 'enhance' and many more others. Under the operation of those runes, the sky fortress could endlessly utilize all sorts of horrible spells, where the magic energy was infinite, to bombard their enemies until they were completely annihilated.