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Itachi graduated at the top of his Academy class at age 7, had mastered the Sharingan by age 8, became a Chunin at 10, and became an ANBU squad captain at the age of 13. Itachi was considered the best ninja among his clan.

Kakashi is considered a genius shinobi, graduating from the Ninja Academy at age 5 and achieving the rank of Chunin at 6.
At the age of 13, Kakashi achieved Jonin status. He created the Chidori. He also recieved the Sharingan from a dying team mate who was his best freind which allowed him to perfect the Chidori which had the original weakness of leaving the user open to a counter-attack, Kakashi's new Sharingan eye allows him to bypass that weakness. However, because it is a transplanted eye, his Sharingan eye is always active. While this would not be a problem for an Uchiha, his non-Uchiha blood causes it to use much more chakra than it should. Because of this, he covers it with his forehead protector and only utilizes it in the most dangerous battles. Kakashi's use of the Sharingan is as good as that of Itachi Uchiha, though the aforementioned handicaps brought about by the nature of his eye make him weaker in comparison.


but what i wanna know is why do all the past teams seem the same
sasuke, sakura and naruto
orochimaru, tsunade and jiraya
kakashi, rin and obito

i dont know if there are any other similar teams but if u look the old orochimaru had saskues non caring attitude and kakashi had everyone close to him die when he was young like saskue. so on and so forth.

Exactly, it's just like that saying: "History repeats itself"