By murdering her close friend? Reason is because never had an uchiha on screen murdered his friend to obtain MS. I think it'd add legitness to that old statement and it'll allow people to take boruto series seriously. On the abilities, I think she'd awaken a super potent genjutsu like tsukuyomi because of her genjutsy prowess display with 1t and even the tsukuyomi description says "A god given jutsu to the greatest prodigy" which means itachi was the greatest prodigy of the entire uchiha clan and now its gonna be sarada. But since boruto has a space time related technique, she would get a space twisting no defense-is-possible kamui like portal technique to match boruto in her other eye. Not only that, because her mother has the inner sakura double soul ability, she may be able to project her inner soul sarada into the outside world something which sakura hasnt shown; essentially making a spiritual warrior like Susanoo to fight for her in her behalf since it does've trememdous spirit power, enabling it to push out ino from sakura' mind and soul, even though ino's technique is unbreakable in the NV unless certain cases are met. I think it'd heavily have to do with the inner sakura ability and probably the hell flames of jigokudo since Sasuke has the rinnesharingan and could possibly access pains realms or at least have the potential to, and that potential will be displayed by sarada. Susanoo would be OP as hell, A Susanoo with "genjutsu" beans shooting out like kamui shuriken, Byakugou ability for Susanoo, because it lacks self healing, Byakugou punch, Byakugou chakra tranfer to allies so her chakra wouldnt be wasted for healing friends, as Susanoo has its own chakra but has to be put to use and project her genjutsu in the reverse way Sasuke blocked genjutsu with his Susanoo; in other words whoever sees her Susanoo falls in Tsukuyomi potent illusion which will clearly show the "Once seeing Susanoo, is the last of a human" statement of madara. Clearly making her Susanoo capable of obliterating the whole world with one blow because of the tsukuyomi imbued in the Susanoo which will teleport the said world into a tsukuyomi realm where the user has full control over every matter and space and time working just like itachi's. This could happen and obliterate the worldically OP.
