Sage Art: Majestic Attire - Soul Effigy Technique

The  is a collaboration ninjutsu in which Nisshō covers his partner Chōmei with his Sage Art: Spirit Effigy, coating the tailed beast with his spectral armor.

Usage
When in usage, Nisshō will project his spirit outwards using his Sage Art: Spirit Effigy Technique, creating the spectral armor in which he uses for combat. After doing so he will surround Chōmei and create a custom armor melding his chakra with that of the Tailed Beast. Using this, he increases the defensive capabilities of Chōmei, but also Nisshō is able to infuse his Senjutsu chakra into Chōmei in order to bolster its techniques such as the Tailed Beast Ball.

The drawback however is that unlike his norma usage where he can split his concentration in order to control his body and his avatar, he is unable to do so as fusing with the Tailed beast is taxing, and as such his main body is left vulnerable unless he is with other teammates.

Trivia
This was inspired by Majestic Attire: Susanoo