What is the technique of Sasuke?

The Chidori (千鳥, lit. "One Thousand Birds") is a high-level Lightning Release technique developed by Kakashi Hatake. It channels a large amount of chakra to the user's hand, forming a blade-like extension of lightning chakra that can pierce through most substances with relative ease. The Chidori is said to be as sharp as the legendary Sword of Kusanagi, and it can even cut through steel.

There are two main variations of the Chidori:

- The first variation is the standard Chidori, which is performed by gathering lightning chakra in the user's hand and then thrusting it forward in a stabbing motion. This technique can be used to pierce through an opponent's body, causing massive damage.

- The second variation of the Chidori is the Chidori Sharp Spear (千鳥鋭槍, Chidori Eiryū), which is a more powerful version of the standard Chidori. To perform this technique, the user gathers lightning chakra in their hand and then forms it into a spear-like shape. The Chidori Sharp Spear can pierce through even thicker substances than the standard Chidori, and it can also be used to create explosions.

The Chidori is a very powerful technique, but it also has some drawbacks. The most notable drawback is that it requires a great deal of chakra to use. This means that only ninjas with a large chakra reserve can use the Chidori effectively. Additionally, the Chidori is a very close-range technique, so the user must be able to get close to their opponent in order to use it effectively.

Despite its drawbacks, the Chidori is a devastating technique that can be used to defeat even the most powerful opponents. It is a signature move of Kakashi Hatake, and it has been used by several other ninjas in the Naruto series, including Sasuke Uchiha, Naruto Uzumaki, and Sakura Haruno.