yah..... Itachi can do that TO ALL OF THEM BY SEPARATE.....
So what you imply is while Itachi deals with 1 Kage the other 4 will be sitting around??
Itachi can multitask jounin level shinobis, but not shinobis of this caliber and intensity..... he will be dealing with indirect attacks....... the air itself will kill him (acid mist)...... the sand where he is standing will kill him...... raikage with tsuchikage can DESTROY Susanoo's bones and Tsunade too....... Yata Mirror CANNOT EXPAND ITSELF 360º unless Kishi wants to OVERPOWER Itachi to the Godly level.
This is a Joke Thread in my opinion.