Chiegan

Some crap, idk what word fits.
The Chiegan (知恵, Chie- Wisdom), is the Kekkei Genkai the Mizukino-Clan established. So far known, only this clan can possess it's powers.

Powers
The powers of it's Doujutsu are unknown, even the wielders do not know what it could evolve into.

This far known by the wielders are the two Jutsu, that react to their bloodline and flow. These can only be used if and only if the user has a pure Mizukino's blood and their Kekkei Genkai.