Reiyuigon

The Enforcer of Will is a jutsu of the Noryokugan. It's an ethereal entity that manifests itself when a weilder of the Noryokugan sychronizes with their Enforcer of Will. It has only been awakened in a handful of Helixians.

It can only be achieved when the weilder of the Noryokugan achieves the Final Phase of their Noryokugan.

It's appearance is unique for every user and it's features are as well. It can have a varying number of arms and comes in a wide variety of colors.

Ace Korimachi's Guardian is mainly black and it has spikes on it's forarms and 2 horns on its head. It also has 2 different tails and wears a black mask in its final form.