Well we all know who would win between MS Sasuke and Itachi, so I had to give him some help.
Sasuke outlasts if this is sick Itachi
If Itachi goes right for the kill, he can defeat Sasuke before he runs out of chakra
who do know MS Sasuke is the guy who will spam susanoo :| and he will outlasts Itachi if its susanoo vs susanoo
Sasuke's susanoo is also V4Yeah, I meant to say that Sasuke has more chakra than Itachi, but in a Susanoo vs Susanoo fight, Itachi would win faster than he would run out of chakra, Itachi's Susanoo is V4 and has legendary weapons
Sasuke's susanoo is also V4
that why i said outlast :| can't see Totsuka sealing susanoo
If my memory doesn't fail me Sasuke didn't achieve V4 with MS he got it with EMS