Board Thread:Versus Debates/@comment-44916514-20200123204114/@comment-43403813-20200130025206

Yeah, Itachi had to activate Koto through a crow that was inside Naruto. Unless he has the eye in his head, I think its kinda stretching it to include it as his arsenal. His main intention wasn't even to interact with Koto, it was to let it interact with Sasuke to bring him back to the Leaf.

Regardless, for argument's sake let's say it is part of Itachi's arsenal, I think Madara would break out of it. Koto doesn't require eye contact which makes it broken af, but Koto gets cancelled if the target realises that they are caught inside a genjutsu. It's how Mifune broke out of it. With Madara's EMS/Rinnegan, Madara should have no problem sensing that Itachi is using an ocular genjutsu by seeing the build-up of chakra in his eyeball, and thus the genjutsu would be broken.