Time-Release Technique

By placing a mark on a person in a ritualistic method, this technique will activate as timed even if the person is tortured or put under a trance. This is meant to catch an enemy when their guard is down. Sai mentions that this is used as a last resort technique by the ANBU, and as such, is rare. When Kakashi Hatake requested Tsunade to use it on him, the technique would activate Kakashi's Mangekyō Sharingan technique, the Kamui, upon Hiruko's attempt to assimilate him.