Ya, too many fucntion liao.
At "basic" level it can see things normal eyes cant see, can
predict enemy moves.
At higher level,
Kakashi can copy moves.
(Kakashi's new moves that blends the space, is it related to
syarigan too?)
Itachi can use the "amaterasu"(black fire) to burn a hole in the
stomach of the frog Jiraiya summoned.
Itachi can create "Tsukiyomi" which he controls the time and space
of the illusion.
Itachi can counter illusion, when Kurenai make the illusion that
Itachi is tied to a tree, she ended up being tied herself.
