Ama no Hoko

The is a massive tower like structure concealed beneath

Description
A massive, three segmented, black tower, the Ama no Hoko can collapse onto itself to be conceale$$d beneath the ground. When active, channels across its surface glow bright red with its energy. Panels of its middle section move out on beams, revealing a solid red core and a shaft of red light is emitted from its top. It is controlled by sound patterns produced by the Saezuri.

History
Hidden for many years beneath, the village's militia was tasked with protecting its activation device. While the was seemingly the only one aware of the full details of his village's "treasure", when attacked, he dispersed the metal bars which produced the notes for controlling the Ama no Hoko amongst the rest of the militia, ordering them to be disposed of. This clearly displays that he, at least, was aware of the danger posed by the weapon.

Effects
An ancient super weapon of some kind, the tower's purpose is unknown. From what was shown, it could release massive amounts of energy, that caused adverse weather effects. When empowered by this energy, the was warped and transformed into a massive Kurama and Orochi-like hybrid creature with immense powers. The tower's energy output could be controlled by the sound patterns produced by the Saezuri.

Trivia

 * The name Ama no Hoko is most likely a reference to the, a naginata wielded by the god Izanagi in which he used it to churned the seas and raised a large amount of earth that formed the very first island that would later become their home.