[indeed Levi, it is a Decagon]
Levi stood in awe, his mouth wide open as the shadow casted by the Decagon began to envelope him.
[Perhaps you could give it a superior title to emphasize its size difference, but it is a Decagon still]
The Decagon wasn't done with its metamorphosis, its metal plates were still shifting and realigning themselves with precision. The sound of interlocking gears and mechanical integration stung the air, symphonizing with the screams of the Westerners and the flickering of flames around them.
Levi couldn't help but notice that the intricate details of the craft was what was forming the Decagon itself. The brown shelling of the craft was what took the main protective covering of its muscular armour, protecting the inner mechanism beneath.
