The Seiji Katana

The Seiji Katana (政治刀 Seiji Katana) is a sword crafted by Seiji Tenmyoji (天名字政治). It is magically conductive allowing the user to conduct their powers into the sword. Because of this, the sword has infinite appearances. Seiji also enchanted the sword so that only a person with "the blood of a Tenmyoji" can touch and/or use the sword.

Users
The current user of the sword is Takeru Tenmyoji. With his abilities, he can change the shape, design, and abilities of the sword, allowing him to be able to defeat almost anyone. But of course, the form of the sword can only be changed with enough kiden, and while the sword is not in its original form, it will keep absorbing kiden until it is back to its original state. While it is in its original state, the sword is easily defeated and destroyed, but the sword is still ultimately sharp. The previous user of the sword was Seiji Tenmyoji. With his abilities, he can lift his enemies and split their bodies with a twist of the sword. Again, limited by amount of kiden.