Mangekyou Sharingan Second Databook

Mangekyou Sharingan (Kaleidoscope Copy Wheel Eye)
Kekkei Genkai, Supplementary, Close range
User(s): Uchiha Itachi
The extreme clairvoyance of those heavenly eyes, gazing down upon past, present and future is the reason why they are feared as the strongest!!

The culmination of the Sharingan that makes the Uchiha Clan so special! Eye techniques holding the utmost potency even above both the insight and hypnosis, such as Tsukuyomi and Amaterasu become possible. Assuredly, Mangekyou Sharingan is the ultimate doujutsu. It appears these heavenly eyes have further special powers that are yet to be clarified, but just what those could be about [is unknown]…

Perhaps because of the absolutely small numbers of people who have awakened to it, its powers are still a vast and unexplored territory.