It's not necessarily a given that we haven't already seen both Sarada's MS techs. Sasuke's techs were Amaterasu in one eye, and the ability to shape and control it with the other one. As we've already seen Sarada has a pretty high degree of control over her ability.
"Get stronger what are u talking about did u forget the back lash that thos eyes have the more she uses her mangekyo sharingan the quicker she will go blind she doesn't have any siblings that she can steal there's from u forget what Sasuke had to do just to get eyes that don't get worse the more one."
Sarada has her training from Sakura, so will likely be able to use regeneration techs. Much like how Obito could spam his MS tech because of the Hashirama tissue transplant, which conveyed his ability to self heal, Sarada should have the same ability given Tsunade's techs were based on her grandfather's ability.
Sarada will also likely have perfected Tsunade and Sakara's regeneration technique, which will likely mean that she has a pseudo ems, so won't need to get replacement mangekyo from overuse of her mangekyo abilities. If Obito could spam kamui, presumably due to the regenerative properties of the Hasirama cells in his body, then Sarada should also have pseudo ems. So if you add, regen, the extra physical strength from Tsunade's techs, her mangekyo techs along with Susanoo, then you can safely say Sarada is going to be OP.
