Sharingan

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Sasuke's fully developed Sharingan

WARNING: THIS ARTICLE CONTAINS SPOILERS!

Known User(s): Madara Uchiha, Fugaku Uchiha, Itachi Uchiha, Obito Uchiha, Sasuke Uchiha, Kakashi Hatake

The Sharingan (Copy Wheel Eye) is an eye technique exclusive to members of the Uchiha clan. It is rumored that the Sharingan descended from the Byakugan, although it grants different abilities and perceptions. The power of the Sharingan can be determined by the number of tomoe in each eye up to a maximum of three. The first and most well known ability is to read and memorize any jutsu. However, the user must be physically capable to perform copied jutsu. Its ability grants the user extraordinary clarity of insight, allowing users to follow fast moving objects with ease and even predict the subsequent action of those objects. This awareness is also clear enough to see through genjutsu and the stream of chakra, but to the same degree as the Byakugan. The third skill the Sharingan grants is the power of hypnosis which involves proposing thoughts and actions to a user's opponent. This skill used in conjunction with the aforementioned talents of the Sharingan can allow users to perfectly mimic the movements of his/her opponents even before they do as if they were seeing the future. The Sharingan also grants other forms of hypnotism, which includes putting people to sleep, replaying the memories of someone, creating illusions, and even controlling a person.

The only non-Uchiha Sharingan user is Kakashi, whose Sharingan eye was transplanted from Obito. Although it is possible to transplant Sharingan eyes, they do not function well in ninja who are not descendants of the Uchiha clan. The use of the Sharingan puts a strain on the user's chakra, which is why Kakashi is often extremely exhausted after extended use of the Sharingan. Uchiha members, on the other hand, are not burdened by this weakness, and can use the Sharingan extensively with relative ease. Itachi, for example, seems to have no problem with having his Sharingan activated almost constantly.

Mangekyou Sharingan

Itachi's Mangekyou Sharingan

User(s): Madara Uchiha, Madara's little brother(name unknown), Itachi Uchiha, Sasuke Uchiha, Kakashi Hatake

The Mangekyou Sharingan (Kaleidoscope Copy Wheel Eye) is the heightened form of the Sharingan. The first known user of the Mangekyou Sharingan is Madara Uchiha, the founder of the Uchiha Clan, who used it to take control of the Nine-Tailed Fox. Several generations later, only a handful of other ninja came to acquire their own Mangekyou Sharingan, starting with Itachi, then Kakashi, and finally Sasuke. They and Madara are currently the only ones in the Naruto storyline who possess the Mangekyou Sharingan. Unlike a regular Sharingan, the Mangekyou Sharingan's is unique between users, drastically changing the form of the Sharingan's tomoe seals when activated. The Mangekyou Sharingan grants the user three new devastating eye techniques: Amaterasu , Tsukiyomi, and Susanoo. Amaterasu is a technique in which the user casts a black fire that burns everything the users sets its sight upon. When Itachi uses this technique to escape from Jiraiya's Toad Mouth Bound technique, Jiraiya describes the fire as being hotter than the sun. The second technique, Tsukiyomi, is an illusionary technique in which the user can control time and space. What makes this technique more intense and dangerous than regular genjutsu is that the victim will feel anything that happens to him/her in the illusion as if it was reality. This illusion can only be broken by another pure-blooded Sharingan user, that is, if he/she is powerful enough. The final technique, Susanoo, is similar to a summoning technique where the user creates a large apparition resembling a yamabushi, which carries a large sword known as the "Sakenagi no Tachi" (Sakenagi Longsword) in its right hand, and the "Yata no Kagami" (Eight Span Mirror) in its left hand as a shield. This apparition is indestructible, and will protect the user at all times, as well as attack if commanded to by the user.

The Mangekyou Sharingan, despite granting the user great power, has one fatal flaw--it deteriorates the user's normal eyesight. The more a person uses the Mangekyou Sharingan, the faster the deterioration process. However, Madara, after realizing this flaw, found a way to permanently restore his eyesight--by taking the eyes of his little brother. By combining the Mangekyou Sharingan of his brother with his own, Madara came to possess a permanent Mangekyou Sharingan with no weaknesses and incredible power.

When the Mangekyou Sharingan is first introduced, Itachi tells Sasuke that the only way to obtain it is by killing one's closest friend. However, it can be inferred that one other method exists; Sasuke's Mangekyou Sharingan was awakened after Itachi, a person he had a close relationship with, died. In any case, the mehtod Kakashi used to obtained his own Mangekyou Sharingan still remains unknown.

Major portions of this page were written by: Supernouva