Body Revival Technique

This is a high level medical ninjutsu, and Shinnō's signature technique. This technique allows the user to survive any otherwise normally fatal damage and instantly heal from the damage. The use of this technique allows the user to also perform techniques, that are normally body taxing, without any drawbacks. A unique trait of this technique is that it can momentarily give the user the appearance of death, fooling even the most talented medical-nins.

When combined with Dark Chakra, this technique can also be used to physically enhance the person to superhuman levels of speed, strength, and healing capabilities. It also alters the person's physical appearance drastically, making them younger and more fit in looks. By Shinnō's claim, this form allows him to open all Eight Gates without any drawbacks.

According to Shinnō, this technique is based on the muscles' ability to grow stronger after repairing itself from damage. Understanding this theory, the Body Revival Technique can increase the strength of the user by manipulating the "Destruction and Rebirth" cycle of the muscles.

Trivia

 * This technique's principles is fundamentally similar to biofeedback.