Board Thread:Naruto Discussions/@comment-43599250-20190823201657/@comment-4961229-20191029042658

The Mangekyou ability of my right eye would be the power to see, absorb, store, and channel kinetic energy through my body. This would allow me to drain a portion of the kinetic energy from any object or groups of objects within my field of vision, store it indefinitely, and utilize that energy at my convenience. Obviously, this grants me the ability to accelerate my own body and/or body parts with the stolen kinetic energy. Even the internal kinetic energy, due to the random motion of atoms and molecules comprising ambient air or any other objects, can be stolen and utilized in this manner. This latter would result in cooling of the object(s) in question. Since kinetic energy is one form of physical energy, any reserves can be converted into chakra to support the user.

The drawbacks of this are readily apparent. Accelerating my body parts unnaturally or to a level greater than the capacity of my physiology causes damage similar to that experienced by 8-gates users. Depending on the length and degree of usage, muscle tears, ligament, cartilage, skeletal damage, or other soft tissue disruption, up to and including complete physical destruction can occur.

The ability of my left eye would be to temporarily seal my body inside of whomever I make eye contact with, similar to a Jinchuuriki. However, I'd be the one in control, while their consciousness was sealed away inside a genjutsu. Not even a Sharingan could escape this genjutsu, as it is a result of my chakra being directly injected into their chakra network, it would have the same effect that a non-visual genjutsu has on a Sharingan user.

I would be able to attach my will to their chakra in the manner of a tailed beast. This would give me control over their body and its chakra and abilities. I would also gain access to their knowledge, experience, and muscle memory. This would allow me to learn skills to take with me that were not dependent on any kekkei genkai or affinities that I did not already possess. All my techniques would remain fully available to me in the body of the target, in the manner of Obito's possession of Kakashi.

The drawbacks of this are obvious. Sensory methods capable of detecting sealed bijuu or genjutsu could possibly discover my possession of a target, thereby limiting its usefulness for infiltration. Furthermore, the death of an opponent's body in which I am sealed results in my own death. Also, if the target's chakra is significantly more powerful than my own chakra or if my own chakra becomes depleted while still sealed within, the technique will rebound and give the target control over my abilities instead. The only way to avoid being killed or controlled respectively is to end the jutsu which could leave me momentarily vulnerable to attack for a split second. As long as my ocular powers release the seal, the target receives no further damage. However, if any other technique, besides the power of my eye, releases the seal, the target dies, in the manner of jinchuuriki bijuu extraction.