Demonic Illusion Barrier: In the Court of the Crimson King

The user first performs the hand seals necessary for the technique, before slamming their hands to the ground. Immediately, the build-up of their Yin Chakra is dispersed across the ground, forming like a grid and spreading over a range. Once its maximum range is met, the barrier forms wall and closes off all exits in the form of a black cube. Those caught inside of the barrier are subject to the mind of the user, as they can create almost any and all visual and optical illusions within the barrier to distract and torment those caught within it.
==Jutsu Effects==
This jutsu erects a Genjutsu barrier around the user, and all that are caught within it are subject to immense and numberless visual and optical Genjutsu. The extent of which truly depends on the user's imagination. The barrier is as hard as steel, making it extremely hard to break out of, even if the victim finds the walls of the barrier. It suffers from two, crippling weaknesses that, while it is fearsome regardless, does lower its potential.
===Strengths:===
*Creates a barrier with the average length being some 48 feet. The speed of the technique, as well as its effectiveness and range, are affected by the user's ability in the area of Genjutsu.
*As long as the jutsu remains active, the user can create any kind of visual and optical illusion that they desire.
===Weakness:===
*Particularly useless against specific Dōjutsu that can see past genjutsu apparitions. Those that can, could easily look past the cast Genjutsu and find Yōkō's position.
*Nothing protects Yōkō from being attacked, aside from his illusions. Meaning someone who could find him before he could possibly defeat them, or cast a more powerful genjutsu, would be more than likely to defeat him and dispel the Genjutsu entirely.