Because the plot demanded it. But who cares? Sasuke would have won. He was already fighting on par with Kinshiki in taijutsu and kenjutsu combat despite only having one arm. If he used his MS or Rinnegan techs, it would be too much for Kinshiki to handle.
LOL, this idiot ^. It was clearly shown (when Sasuke was confronting Momoshiki) that Sasuke had the Rinnegan tomoes after he used Ameno, which means his Rinnegan DID NOT need any recharging. :lol Naruto fanboys are so biased, they get blind at times. xd
BTW, Adult Sasuke doesn't need to recharge his powers like Teen Sasuke because the limitations are gone. He could even use Ameno twice with his powers gone and chakra diminished due to dimension travelling.
Yeah, it's obvious to all fools. Sasuke was fighting on par with Kinshiki with just taijutsu and kenjutsu. He didn't even use his MS techs, Six Paths techs or Susanoo. LOL, Naruto fans are so biased, they forget Sasuke's powers. xd
He is retarded AF.
@bold That was when he newly got the Rinnegan. Now he has no limitations.
The OP is so dumb, even Naruto fans disagree with this fool. ^