itachi beats deidara in most areas, the only thing he might have a problem is if deidara goes to the sky or does long range fighting then he will make itachi sweat but other then that deidara has no chance
Deidara would go all in and would suicide, because he knew he couldnt 1 v 1 Itachi already and the best case scenario was a suicide killing Itachi as well.
I don't think so. Even with his eye, Deidara fell for genjutsu a couple of times I think. Itachi is not the same as Sasuke, as soon as he would have got Deidara in a genjutsu it would have been over there, and Itachi is a hell of a lot better at genjutsu than Sasuke IMO.
Deidara would go all in and would suicide, because he knew he couldnt 1 v 1 Itachi already and the best case scenario was a suicide killing Itachi as well.