Genjutsu Seal

This is a powerful defensive mechanism for Kodoku. It was derived for the sole purpose of ensuring he is never put in any Genjutsu.

Usage
when the seal is activated, any opponent who attempts to put him in Genjutsu will automatically trigger it, and the seal will instantly reverse the effects of the Genjutsu to the opponent. This technique is so powerful, it can even reverse techniques such as the Kotoamatsukami and Tsukuyomi, giving Kodoku temporary control of the Illusion. The seal can be activated in an instant without Kodoku moving a muscle.

Weaknesses
Although it can reflect many Genjutsu, it can't reverse the Izanami, as it is deemed unbreakable except if you accept fate.