Genjutsu: Amano Iwato

This technique requires the use of the Sharingan and direct eye contact. The opponent is trapped alone in an illusory dimension in which will be put face to face with an incomplete and shapeless version of the Sharingan wielder's Susanoo. In order to the technique to be fully utilized, the wielder must activate his Mangekyō Sharingan allowing the form of Susanoo hold the victim with one of his hands, gagging their then. There is no knowledge about the final effects of this technique, even though the body of the victim trapped in genjutsu becomes completely motionless and in shock in the real world.

Apparently, this technique can also be involuntarily activated when the wielder needs to defend itself quickly as when Tenmaku had to defend himself against the group of Hunter-nin who tried to assassinate him. The same way as for users who have not fully awakened Susanoo the form of the gigantic humanoid is even more blurred and fuzzy, even though some characteristics are possible to be seen.

Influence
The Ama-no-Iwato (天岩戸) literally means "The cave of the sun god" or "heavenly rock cave". In Japanese mythology, Susanoo, the Japanese god of the seas, was the one who drove Amaterasu into Ame-no-Iwato. This caused the sun to hide for a long period of time. In order to get Amaterasu out of the cave the other gods threw a party outside. When she heard the noise she got curious and peeked but got blinded by the mirror Yata no Kagami and so she thought they were celebrating the arrival of an even greater and brighter goddess than herself, though in reality it was her own mirror image. Then Ame-no-tajikarao forced the cave to open up the rest and the world was bathed in light once again. As Amaterasu stepped out of the cave a holy seal was applied to it so that she couldn't go back into hiding.