No hey can't be put in a genjutsu.
They last until destroyed.
(Inton Modo) - Yin State
Type: Supplementary
Rank: S
Range: N/A
Chakra Cost: 200 (-40 per turn)
Damage: N/A
Description: Based on Hagoromo's Six Paths Sage Mode, those who have completed Yin can enter this mode to elevate their prowess but only in their spiritual capabilities. The lack of the Juubi’s monstrous chakra and natural energy makes it impossible for proper balance of both Yin and Yang natures simultaneously at such a high level. When entering this mode, users first gather their five basic nature chakras and their Yin nature. They then manipulate the ratio of their Yin to Yang chakra such that one nature almost completely overshadows the other, done almost instantly and effortlessly. The result causes the user to enter Yin State. Yin State is the state entered by users when they emphasize their Yin chakra over their Yang. In this state the user is endowed with a pitch-black chakra cloak with white magatama down the center, along the collar and sleeves. The cloak reaches down to the user’s ankles and covers a jet-black jumpsuit is underneath. The user’s nails, lips, hair, and sclera also become jet black. Along with the 4 Truth-Seeking Orbs the user will also gain a Shakujo consisting of the same energy and abilities of the orbs. The main attributes that users gain in this the technique Kuninotokotachi. Kuninotokotachi is a genjutsu technique that grants the user prowess on par with the Uchiha’s Mangekyou Sharingan. When casting genjutsu, the user’s techniques become strong enough to hypnotizes and almost completely control their opponent’s actions like Kotoamatsukami. The user also gains a nigh impenetrable spiritual defense through the shifting of balance, making him immune to any A rank and below Genjutsu none Doujutsu or Yin Genjutsu and a complete defense of up to S rank for other spiritual/mental based abilities ( not counting ones that deal physical damage ). The drawback to this state is that the disproportional amount of energy makes users incapable of using Yang Release techniques and other physically elevating techniques. Advanced forms of taijutsu movement (anything that requires chakra or is B-rank and above) also become unusable.
Note: This technique only last 6 turns and can be used only once per battle.
Note: One must have completed Yin Release in order to use this technique. The user can only use either Yin or Yang state on any bio.
Note: Once the technique ends the user’s spiritual or physical chakra is drained to the barest minimum for their survival, thus making them incapable of using Yin, Yang, or Yin-Yang Release techniques for 10 turns and incapable of using Genjutsu or spiritual abilities for 5 turns.
Note: Likewise, users are unable to use techniques above A-rank for 4 turns.
The pinnacle technique of Yin. Note that in this technique, applying the concept of ratios, you reduce your Yang to the absolute minimum you can without endangering your life. What are your thoughts on this technique?