Board Thread:Versus Debates/@comment-26636534-20160221130323/@comment-7292165-20160417050142

Jiraiya mentioned he was not good in genjutsu, Naruto like his teacher wasn't either as mentioned about hus poor chakra control. Jiraiya knew the basics behind breaking it is all. Breaking it seems to vary on the amount of chakra exuded into the opponent, while the most clever genjutsu makes it so the user can't figure out is isn't a genjutsu. Naruto couldn't even tell he was in a genjutsu when Kakashi made Sasuke appear before him and Sakura, despite him still being in a 13 year old body, talk about obvious. Naruto's skill in genjutsu is mediocore. Guy was able to deduce that technique used on the people in Chunin Exams was genjutsu and broke a high ranking jutsu. Like I said, Itachi will need to use a Sharingan based genjutsu which won't be easy when it's Guy.