Law

Law (ロウ Rō) is an S-Rank Ninjutsu created by Hiyama Machi.

Description
When this technique is activated, a bright light envelops the area and inflicts heavy damage on the user's target. This jutsu is so powerful that it was able to completely counteract the effects of the Impure World Reincarnation. However, this jutsu requires 10 years of training to complete, and it comes with equally risky effects if performed incorrectly or in its incomplete state. When Hiyama Machi used this on a former Mizukage, Mura Izumi to release her from the evil influence of the reanimation she was under, this unfinished version not only caused Machi to collapse shortly after casting it but even stopped his growth entirely, forcing him into permanent youth as he was.

Eventually, Machi modified and improved Law by removing its side effect whenever it is used, setting it as the basis for Majin Law.