Mangekyou Sharingan is translated as Kaleidoscope Copy Wheel Eye. It is a higher form of the Uchiha clan's sharingan. The basic sharingan will enable the user to memorize any technique that it has been a witness to including ninjutsu, genjutsu, and taijutsu techniques it can also enable the user to see through and illusionary technique. With the Mangekyou Sharingan activated, one major advantage is to be able to use the three most powerful jutsu possible, tsukuyomi, amaterasu, and susanoo. The disadvantage of the Mangekyou Sharingan is, it causes the deterioration of the eyes.