All Sharingan Genjutsu can be countered

[Styles]

There are instances all throughout the manga were sharingan genjutsu of any caliber were countered.

3 tomoe- I just watched the Deidara vs Sasuke fight again, and somehow Deidara trained, yes simply trained his eye to counter Sasukes genjutsu. That's a helluva feat maybe that's how Hashi and Tobi fought the Uchiha all them years.

MS Genjutsu- Danzo countered it with a curse mark. It was placed earlier in the fight, nonetheless it was countered.

Tsukiyomi - 3 tomoe Sasuke broke (this is speculative), and Oro was about to break out of it which is why Itachi cut his arm off so soon.

Koto- once someone tells you you're in koto you can awaken from it.


Itachi: "all genjutsu fails in front of these eyes." Well I guess u don't need genjutsu u just need to think a little.

Ty and Itachi solos while Gai yolos and Naru narutos

Deidara did all of that but still kept getting negged by Sasuke's Genjutsu.
Danzo fell for Sasuke's Genjutsu too.
No one can break Tsukuyomi unless you have Uchiha blood and sharingan so theoretically it can't be countered.
And about KA who knows.

 

[SatanicGod]

Not necessarily. Sasuke was ok after he countered. By ok I mean compared to kakashis state

Because Itachi had 0 killing intent...