Sword of Kusanagi: Chidori Katana


 * Debut (Anime): Shippūden Episode 52
 * Debut (Manga): Chapter 308

Sasuke flows his Chidori Current through a katana in a manner similar to the Flying Swallow technique. The radiating and chirping blade can easily cut through steel. Furthermore, the body of the person cut by the sword goes numb, taking away their freedom of movement.