this is the reason no one can beat itachi.
with his sharigan active since he was a child, being a part of the hidden leaf, joning anbu black ops, in the third shinobi war and akatsuki and now saving the 3rd shinobi war
his sharingan has seen more attacks than probably anyone.
as i hope you've noticed every uchiha becomes alot more powerful with there sharingan and it helps with there intellect being able t see moves how they work and copy non kekki genkai makes you a powerful foe.
in the begining of the series itachi had ms you can only imagine how that could change ones perpective.
if you think pain or anyone is just going to be itachi u might be an idoit.
yess itachi used naruto and bee to break nagatos attack because it makes since not to waste his own chakra with two enormous powers right there.
yess every shinobi has an attack that can kill itachi. can they hit him with it?
one shots like yokata no magma tsyukuyomi, totsaka blade and susanoo. you never see him using these ittacks to kill a serious itachi could only be countered by madara or minato
