This technique is a secret kinjutsu of Takigakure. Only known users is Kakuzu. This technique can only be used once per battle due to it being a forbidden jutsu. That means if you deactivate it, someone else attacks you after fighting someone, you can not use it. It has to be a challenge not someone attacking you randomly. This is for god mod perpouses. Only the Takikage may give permission to grant a person this jutsu.