Sharingan
The Sharingan (写輪眼? literally "Copy Wheel Eye," English manga "Mirror Wheel Eye") is an eye technique (瞳術 dōjutsu?) that naturally occurs in a select few members of the Uchiha clan. The Sharingan is thought to be descended from the Byakugan,[34] but grants the user different abilities and a different insight. The Sharingan does not automatically appear from birth in a user; instead, it will usually appear when the user is in a life-threatening situation, where the power of the Sharingan could save them. After this first appearance, the user can then call up the Sharingan any time they wish. The power of the Sharingan is judged through the number of tomoe in the eye, with a maximum of three in each. The characters who currently possess the Sharingan include Sasuke Uchiha, Itachi Uchiha, Kakashi Hatake, and Tobi.
The Sharingan's first and most well known ability is to memorize any technique that it witnesses. It can memorize any standard form of jutsu with perfect accuracy, allowing the user to use the techniques as his own. In order to reproduce copied jutsu, however, one must have the necessary skill or ability to perform them. A prime example is Rock Lee's Strong Fist taijutsu. While Sasuke was able to copy some of Lee's moves, they put a much more significant strain on him since he hasn't had the same training as Lee has.[35]
The Sharingan's second ability is granting the user incredible clarity of perception, allowing them to track fast-moving objects with ease and even predict the subsequent movements of those objects.[36] The ability to track and predict movement is largely based on individual skill, as unskilled users have much more trouble tracking fast-moving objects. A fully-evolved Sharingan eye can track even the quickest opponents, though, like the first ability, it doesn't necessarily mean the user has the ability to react to it.[37] This perception is also great enough to see through genjutsu and to observe the movement and flow of chakra, but not to the same extent or clarity as the Byakugan.[38] It also gives color to chakra. Additionally, the Sharingan grants the user exceptional analytical powers, allowing them to instinctively pick up on various visual clues with little difficulty. For example, Sasuke was able to reproduce answers on another person's test by watching their pencil movements during the Chunin Exam.[39]
The Sharingan's third capability is a unique brand of hypnosis that involves suggesting actions and thoughts to the opponent. When used in conjunction with the aforementioned aspects of the Sharingan, this allows the user to perfectly mimic every move their opponent makes, even before they do, making it appear as if the user can see the future.[40] It also allows for other forms of hypnotism, such as putting an opponent to sleep, replaying memories to someone else, or creating various illusions to fool an opponent.
It is possible to transplant Sharingan eyes from one person to another, as occurred with Kakashi and his deceased comrade Obito Uchiha.[41] However, transplanted eyes do not work as well in a non-Uchiha body; Kakashi's eye is always active, causing him great strain when he uses it and forcing him to recuperate for extended periods of time after a battle. Kakashi keeps it covered when not using it to avoid this side effect in his everyday activities. Uchiha clan members are not burdened with this weakness; while activation of the Sharingan does consume chakra, the drain is so small as to be almost insignificant. Itachi in particular seems to have no trouble keeping his Sharingan activated near-constantly.
IGN has described the Sharingan as one of the best abilities that a ninja could have but, due to its main power being imitation, has also said it is not particularly original.[

| Sharingan with 1 Tomoe This is type of Sharingan has 1 tomoe. It allows the user to perceive motions. An example of this was in the battle between Sasuke and Haku. Sasuke could see Haku's attacks coming. | |
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| Sharingan with 2 Tomoe This is type of Sharingan has 2 tomoe. It allows the user to perceive motions as well as be able to copy the motions perceived. An example of this is when Sasuke was fighting Rock Lee. Since Sasuke was new at this at the time he wasn't that good at it, but he perceived Rock Lee's Taijutsu during his battle and copied it. Than later on during the Chuunin exam he should everyone that he could also use the Taijutsu because his Sharingan had perceived and copied it. | |
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| Sharingan with 3 Tomoe This is type of Sharingan has 3 tomoe. It allows the user to perceive motions, copy the motions perceived, and predict motions. An example of this is during the fight between Sasuke and Naruto at the Valley of the End. Sasuke could perceive Naruto's motions, copy them, and than predict what Naruto was going to do next. Essentially, to Sasuke through use of his Sharingan, it looked like Naruto was going in slow motion that's why he could predict Naruto's next movement. | |
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| Sharingan in shape of a 3 Bladed Shuriken Sasuke had this type of Sharingan in his battle with Naruto only briefly. The advantage of this type of Sharingan is unknown, but it is speculated that it takes the abilities to perceive motions, copy the motions perceived, and predict motions to a new level. |
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| Itachi's Mangekyo Sharingan The Mangekyo Sharingan (translation: Kaleidoscope Copy Wheel Eye) is a heightened form of Sharingan which was once thought have been attainable only by members of the Uchiha clan, and even those who have the potential to obtain it must make a great sacrifice in order to obtain it - according to Itachi, they must kill their best friend. In the present, there are only two known people who can use the Mangekyo Sharingan: Itachi and Kakashi. According to Itachi, if his younger brother Sasuke obtained the Mangekyo, the number of people who could handle the Mangekyo Sharingan (including Itachi and Sasuke) would be three. Using this type of Sharingan Itachi can create a mysterious and very powerful black fire, liek the one he used to escape from Jiraiya's inner frog mouth barrier. It also allows the use an illusion technique. Itachi looks into his opponent's eyes and cast a Genjutsu spell on them. This allows Itachi to have full control over space and time and can place his opponent to be in any world for as long as he wants. The technique itself only lasts a short while in reality, however, to the opponent it feels like an eternity. As far as we know, only Sasuke can overcome this technique because he is a pure Uchiha with the power of Sharingan.. | |
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| Kakashi's Mangekyo Sharingan It is somehow capable of creating an interdimensional space-time warp. Kakashi uses it to warp Deidara's right arm into a different dimension. He subsequently uses it again in Chapter 278 to counter Deidara's ultimate move, which would otherwise level the entire forest they were fighting in. However, the attack requires considerable effort to aim precisely and appears to leave Kakashi's chakra significantly drained: he collapses after using the technique three times.
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Known Characters Who Currently Posses Sharingan
Itachi Uchiha | Kakashi Hatake |
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