Bringer-of-Darkness Technique

The user casts an illusion of darkness upon an opponent to take away their sight. As such, this allows the user to attack an opponent unseen. Although it negates sight, the opponent can still rely on their other senses.

Trivia

 * In the anime, Tobirama Senju was the one to use this technique. However, in the manga, the technique was cast by Hashirama Senju. In the video game Naruto: Ultimate Ninja 3, both are capable of performing the technique.
 * In the manga and anime, this technique is called by its full name, . The databook entry for this technique drops the "Genjutsu" part.