I think i know how Sasuke's rinnengan works

[Aominecchi]

Ok then how did sasuke dodge the lightning in the beginning?

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What did he swap with?

I wonder that too....i think he can use the rinnengan on anything so i simple rock could have worked

 

[Styles]

Madara says here: "but you are still really fast Sasuke"

Spoiler

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So he ran towards Madara

ah never mind thought you was talking about how his rinnegan made him move so fast and to swap with things got confused i guess