Board Thread:Naruto Discussions/@comment-26636534-20180325094649/@comment-5085906-20180325151436

Ninja Of War wrote: ^Chapter?

Tsukuyomi aside, Itachi is probably considered to be one of the most powerful genjutsu users, but his genjutsu was handled easily by a shadow clone. That casts a lot of doubt on being the most powerful genjutsu user. Because of his role in the narrative, it is pretty unclear when Itachi's not being serious and when he has reached his limit. This is precisely why I dislike him as a character and a fighter. He's just Kishimoto's magic key out of every dead end he dives headfirst into.

So we could make an argument that maybe Itachi had nerfed the effects of his genjutsu in that particular instance.

For the record, I've not doubted for a second his skills with illusions. As I said, I firmly believe he's the best genjutsu user that is not Kaguya or Juudara.