Lightning Rapier

The Lightning Rapier is Arashi's signature technique, and has become the technique by which most shinobi identify him. It was developed as a stronger variant of the Lightning Flash Beheading, and now forms the basis for what Arashi dubs "Ninkenjutsu". The technique channels a tremendous amount of chakra into a kunai, which is then formed into a long, rapier-like blade using Shape Transformation. The lightning is very concentrated, as evidenced by its deep blue color. As such, it possesses very great cutting power, even being able to slice ordinary swords in half.

Trivia
Like many of Arashi's techniques, this technique has an English name given kanji that somewhat fit the pronunciation. Normally, the kanji for this technique would be pronounced Reibiya.