|Base | True (Anime)|
|Tusbaki Mode Change: Uncanny Sword|
Mōdo Tsubaki no Mōdo Henkō "Yōtō"
Enchanted Sword Mode
Mode: Uncanny Sword (モード「妖刀」, Mōdo "Yōtō")
This technique, allowing for the Uncanny Sword transformation, transform the weapon into a katana with a black blade and a bandage-wrapped hilt. Possessing this transformation also allow for a Multi-Form weapon the power to control shadows in such a form as well as other weapon transformations.
In the anime, the Uncanny Sword's true form is expressed.