Sharingan

Sharingan (写輪眼) is a Dojutsu kekkei genkai. It is regarded as one of the "Three Great Dōjutsu", the others being the Byakugan and the Rinnegan. Its powers originated from Rinne-Sharingan.
==Abilities==
The Sharingan grants the wielder two broad abilities: the "Eye of Insight" (洞察眼, Dōsatsugan) and the "Eye of Hypnotism" (催眠眼, Saimingan). Although the abilities are not literally restricted to certain eyes, Madara Uchiha noted that the Sharingan can only be used to its full potential when both eyes are together. Even within these two categories, there may exist several distinct though similar abilities: 
=== Eye of Insight ===
* The user can see chakra, giving it colour in order to distinguish it by its composition and source. Though not as capable in this regard as the Byakugan, it can see chakra through some (but not all) obstructions and detect irregularities in a person's chakra flow, such as those caused by genjutsu influence.
* The user is granted incredible clarity of perception, enabling them to read lips or mimic something like pencil movements. Sasuke Uchiha's Sharingan was even able to see on a cellular level. In combat, this allows them to see fast-moving objects and, once fully developed, offers some amount of predictive capabilities: they can anticipate an opponent's next move based on the slightest muscle tension in their body and act accordingly to dodge or intercept. They can also read the enemy's hand seals to give them an insight of the performed technique's nature, regardless of the speed of performance, so long as the hands are not physically hidden from view. Although a Sharingan user can see these things, they also need the physical ability to actually act on the visual information. In the anime, it is shown that with advanced enough prowess, via eye contact, the user can even enter the target's mind to look through their memories., and even erase them within a long range for several targets.
* The user is able to copy almost any jutsu they see, memorising ninjutsu, genjutsu, and taijutsu with near-perfect accuracy. They can then either perform that jutsu or modify it to suit their needs, as when Sasuke Uchiha bases his Lion Combo on Rock Lee's Front Lotus. Again, Sharingan users need the prerequisite abilities before they can mimic a jutsu they have seen, and for that reason they cannot, for example, reproduce kekkei genkai abilities they do not have or nature transformations they haven't learned to perform.
=== Eye of Hypnotism ===
* The user can perform what is generically called Genjutsu: Sharingan. While there are various manifestations and purposes of the ability, the better known one is to, through eye contact, suggest thoughts and actions to a target, coercing them to divulge information or act in a particular way, potentially without the target's awareness. In extreme cases, the Sharingan user can take complete control of the target's body, forcing them to do exactly as the controller wishes; this control is visually indicated by the Sharingan's design appearing in the target's eye. The Uchiha are particularly infamous for using this ability on the tailed beasts, and in fact can enter its or a jinchūriki's subconscious to more precisely control the beast's chakra. Multiple targets can be taken control of in this way, though the more divided the user's attention is, the easier it is for targets to escape this control.
* While not an ability per se, the Sharingan user can appear as if they are able to "see the future". First, the user must perfectly mimic every move their opponent makes and possibly their thoughts and words through careful observation. Then, they suggest an action to the opponent such as hand seals for a technique that the opponent and Sharingan user already know and copy that. With these things done, the user can complete the action even before the opponent does, possibly using the Sharingan's genjutsu to confuse or delay them.
In addition to these abilities there are two other jutsu that a Sharingan user can perform: Izanagi allows the user to warp reality for a short time, changing reality into illusion and illusion into reality, thus escaping death and rewriting destiny; Izanami traps the victim in an infinite loop disregarding the target's five senses, specifically designed as a reprimand for those who would abuse Izanagi. Use of either ability causes the Sharingan with which it is performed to be blinded afterwards, and for that reason the Uchiha classified them as kinjutsu.
As used by Ah Loo against Michelle, he can use it to read others' mind. 
== Transformations ==
* The Sharingan can be evolved into the Mangekyō Sharingan by experiencing the trauma of loss, granting unique, user-specific jutsu in addition to the Sharingan's standard abilities. Awakening the Mangekyō Sharingan will automatically fully mature a Sharingan if it isn't already.
** Use of the Mangekyō Sharingan causes blindness over time, but this can be negated by transplanting another pair of Mangekyō Sharingan from a close relative, such as a sibling, to acquire "eternal" Mangekyō that never lose their sight.
* A Sharingan can become the Rinnegan. Both of the Sharingan became Rinnegan several decades after the user integrated Hashirama Senju's DNA into the user's body. Sasuke Uchiha's left Sharingan became a Rinnegan after acquiring half of Hagoromo Ōtsutsuki's chakra. As shown with Madara, the awakening of the Rinnegan restores full eyesight to the eyes fixing the blindness caused from using Izanagi.
== Forms ==
File:WhatsApp Image 2022-03-15 at 7.52.57 PM.jpg|Yellow Oil Cat’s Sharingan.
File:WhatsApp Image 2022-03-15 at 7.55.15 PM.jpeg|Yellow Oil Cat’s Mangekyo Sharingan.
File:WhatsApp Image 2022-03-15 at 7.56.59 PM.jpeg|Yellow Oil Cat's Rinne-Sharingan.
File:WhatsApp Image 2022-03-15 at 7.57.54 PM 2.jpeg|Jean Perry's Sharingan.
== Trivia ==
* The kanji "Rin" (輪, literally meaning: Wheel) is also used in Rinnegan and Rinne Sharingan, potentially linking the three terms etymologically.
* If a Sharingan user and a Byakugan user were to mate, their offspring would have one Byakugan and one Sharingan.
* From what characters have noted, this dōjutsu apparently "glows" in the dark.
* Although the Sharingan originated from Rinne-Sharingan, it was rumoured to be derived from the Byakugan.
* Activating the Sharingan is described as dyeing the user's vision red, in addition to allowing them to see chakra.
* A Lightning Release Suit containing a motion sensor that can predict opponents' movements, which was compared to the Sharingan.
Category:Dojutsu
Category:Abilities
Category:Kekkei Genkai
Category:Kekkei Mora