was going to post it but it seems the thread already existed years ago.
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Most of feats mentioned in this thread is highly exaggerated by the OP ,for example :
-when itachi shunshined behind bee ,that was nearly at the same moment that nagato summoned two gigantic animals .you can't prove that bee was paying full attention to/staring at itachi at this moment .
-his feat against kabuto is not a speed feat to start with let alone calling it a blitz .kabuto obviously evaded him (thus the dash lines on kabuto's body )and only the horn was caught because of not being familiar with having horns ,kabuto himself stated that a page after which means had kabuto been familiar with his horns ,not even the horn would have been caught .
-he never blitzed sasuke without distracting him and his vision by sending his crows at his face .
Itachi is a fast character and has impressive speed feats like evading Bee's interception to his hand to hand fight with naruto but no need to exaggerate every single move he makes .