I see that the weekly wankfest has begun. Sasuke was absolute fodder to Kaguya, who didn't even need to go anywhere near her full power to shit on him. Giving him pieces of the 9 Bijuu's chakra isn't going to push him up to a level where he can solo her. The marks add nothing but a sealing jutsu, no strength at all. Even if I took that hype of him being on "Old Man Rikudo's Level" as "He's equal with Prime, JJ Hagoromo" he still gets beaten by Kaguya as she is>Hagoromo.
-All his chakra based attacks are absorbed.
-All Killing Ash Bones destroy his Susanoo and if he uses Rinne Shift to dodge and attack her at the same time, she reacts, but instead of evading, she pastes him with a chakra fist or kills him with a bone, or her "Dimension Busting" Gudo Dama destroys his Susanoo and kills him in the process.
Yeah, he'd be able to pressure her this time, but no way in hell is he winning on his own.