Zenmirukazannōdō

Zenmirukazannōdō (全見る火山能動, All-Seeing Volcanism)is a l easily the most appealing of all seventeen blades with its four pearly eyes, it appears as a cross between cooling magma and a very large cleaver. Like the other weapons, it is of the sentient, living variety and possesses 360 degree vision alongside control over magma. It is also called the "Volcanic Sword" (火山刀, Kazantō).

Appearance
Zenmirukazannōdō is a large cleaver blade around four foot five inches in length. The handle and blade of the weapon appear to be crafted from extremely dense rock. Above the handle is stationary molten magma. The sword possesses a that's pearly white in appearance.

Abilities
Each of its four eyes grants it 360 degree vision while allowing it to track the movement of fast moving objects and giving the user penetrative sight that extends out to about 250 feet. This range and extend depending on the relationship between the weapon and wielder. It can share it's expanded field of vision, 360 degree view, and types of vision with its wielder. It can emit slashes composed of magma or superheated energy. Part of the weapons body resembles molten rock and lava, while its blade and handle appear as natural rock. The sword shows completely immunity to heat and states that it is physically empowered by it. The larger eyes can see visible light and the trajectory of objects based off minute factors while the smaller eyes can see heat signatures and the kinetic energy of objects. Being that both sets of eyes possess penetrative sight and can track high speed objects, combined with their positions on the sword, the sword itself and the user by extension are granted visual tracking prowess far surpassive that of the, as the user takes in details from multiple points of view. Wielding the sword also grants the user the mental capabilities needed to process such information all at once without overwhelming them. This becomes second nature the more they use the sword. The sword is also able to take the heat out of objects adjacent to it. Through the manipulation of magma, the user can create obsidian or ash for use in techniques. The magma-like back side of the blade can be used to forcefully melt though other weapons and objects.