Shin Uchiha (Clones)

is the name given to the various individual genetic clones of the original Shin Uchiha, who treats them both as sons and organ donors.

Background
The original Shin Uchiha was one of Orochimaru's experimental test subjects and followers, and possessed a unique genetic makeup that allowed for tissue and organ transplantation with absolutely no chance of rejection. Together they performed various experiments, cultivating clones from Shin's teeth and nerves in order to uncover the secrets of genetics. It is from these experiments that Shin Uchiha's clones originated. The majority of Shin's surviving clones follow the original, treating him as their father, but a sole clone remains in Orochimaru's hidden laboratory.

Personality
Each of Shin's clones has a unique personality, though they rarely speak and express few outward emotions. When they do speak, they tend to talk in a stilted, monosyllabic manner. Their individuals motivation are unclear and likely dictated by their "father", as they express a strong desire to avenge Itachi Uchiha by killing Sasuke, declaring that Itachi's murder was unforgivable. The Shin who initially attacked Sasuke Uchiha was willing to recklessly kill people he did not deem "necessary" for his cause. The clones are also revealed to be more independent than realized, showing a high manipulative and treacherous side when the ultimately deemed the original as weak and unnecessary, skewing him mercilessly to sever all ties to him.

Appearance
Shin Uchiha's clones all share identical physical features, appearing as eerie-looking young men. They have pale-white skin and likewise coloured hair that are slicked back and tapered to a point. They lack eyebrows and wear perpetually wide-eyed expressions with dark rings around their eyes, giving them a somewhat-deranged appearance. Each clone wears a white high-collared kimono shirt with an Uchiha emblem emblazoned on the back and a wide, dark blue obi wrapped around their waist. They wear dark blue arm-guards that cover their forearms, dark blue pants, and a pair of dark blue open-toed boots with distinct zig-zag treads. The clone who first confronted Sasuke donned a dark, hooded cloak when initiating his ambush. Some clones were not cloned properly as they had abnormal size and body mass, which made them look thin, chubby and giant compared to normal sized clones.

Abilities
The Clone-Shins are shown to be vary capable in battle. During the first scuffle against Sasuke Uchiha, one clone was able to force the mighty Uchiha to draw his sword to counter its attacks. Against Sarada Uchiha and Chōchō Akimichi, two kunoichi of similar physical age, a clone quickly overpowered them, saved only by the timely arrival of the Seventh Hokage.

Physical Prowess
Sharing the same unique genetic make-up as their donor/father, the clones are able to completely integrate any new genetic material without a chance of rejection. In battle, the clones displayed impressive levels of speed and agility, able to evade a surprise attack and quickly counter. Even Naruto, the Seventh Hokage, was impressed by the clone's evasiveness. The clones are very enduring, able to survive the blunt of a massive fireball attack. Despite the clones each seemingly having their respective Sharingan active constantly, they show no signs of fatigue from their continued use, implying they have very high reserves of chakra.

Ninjutsu
The clones have shown a wide range of skills. In stealth, one clone performed the Body Flicker Technique while employing leaves to cover his escape. They are able to perform scroll sealing for storage of the weaponry, to which they displayed proficient skills at wielding a variety of weapons. While using a kusarigama or giant shuriken attached to a chain, the clones are able to strike with a two-pronged attack maneuvers. Also with the chain, they can deflect enemy attacks or disturb his enemies' balance.

Sharingan
Each Shin possesses a pair of fully matured Sharingan. Because of each clone's highly adaptive bodies, they are able to make regular use of the dōjutsu unhinded, unlike wielders who are not Uchiha. These eyes granting them heightened perception and the ability to perform various complicated attack patterns such as striking an opponent's blind side with shuriken.

Mangekyō Sharingan
Shin's clones have also awakened the Mangekyō Sharingan through unspecified means. Being genetically identical to their father, it shares the same shape and abilities as the original. Its shape is a large circle around the pupil with three points spaced out. With it, Shin's clones are able to telekinetically manipulate weapons after marking them with a special seal. The first clone encountered used this ability to disassemble his giant chain-shuriken to create a multi-directional surprise attack against Naruto, Chōchō, and Sarada. Other clones are shown to wield large, three-pronged kunai.

Naruto Gaiden: The Seventh Hokage and the Scarlet Spring
The first clone of Shin attacks Sasuke after stalking him through the woods, but is quickly driven back and forced to flee. He retreats to a mysterious clearing where he reports to the original Shin Uchiha, who is garbed in what appears to be an Akatsuki robe. The two briefly discuss Sasuke, agreeing that he is strong but must be killed. After finding out that Chōchō Akimichi and Sarada Uchiha left Konohagakure, the original Shin orders his clone to kidnap the latter. He surprises the two on their way and after his demands are refused, he attacks them with a chained shuriken. Albeit shortly driven back by their team-work, Shin's clone quickly gains the upper-hand again and attempts to kill Chōchō whom he calls "unnecessary". However, the sudden interference of Naruto Uzumaki foils this. Furious at the Seventh Hokage's interference, Shin's clone activated his Mangekyō Sharingan. He then attempted to strike his targets from behind with his shuriken, only for Naruto to enter his Chakra Mode and block the attack. The original Shin's spy creature then appeared, telling the clone to retreat against the Hokage. The clone glared at the trio below before being transported by the spy creature's Space–Time Ninjutsu.

Later, the same clone teleported to Sarada's location and attacked along with the original, though their attack was quickly rebuffed by Naruto. Sasuke then appeared to aid his rival and daughter against the attackers. One of the clones worked in unison with Shin to attack a seemingly defenseless Sasuke, only for the Uchiha to teleport away and blast his enemies with a Fire Release: Great Fireball Technique. Shin quickly responded by manipulating the clone in front of him to take the blunt of the blast, leaving the clone battered and unable to fight. Ultimately, a timely arrival by Sasuke's wife, Sakura Haruno, left Shin crippled and forced to retreat back to the separate dimension while capturing Sakura. There, Shin killed the injured clone so he could harvest its organs as a replacement for his own.

After the surgery, Shin began to fight Sakura, Sasuke and the other Konoha-nin arrived thanks to Sasuke's Amenotejikara, where the Uchiha quickly crushed Shin into submission with Susanoo. Realizing he needed to retreat, Shin called for his clones to distract Sasuke and his allies. To Shin's horror, the clones instead stabbed him, plainly explaining that he is not needed anymore. Thousands of Shin-clones then appeared and began to fight Naruto and Sasuke. During, Sarada dove into the fight, shocking everyone with the same immense strength as her mother.

Trivia

 * means "new" in Japanese.
 * Despite their name, they are not true members of the Uchiha clan.