There should be a episode showing the so6p vs the Juubi

[oShux]

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Now that we've seen how powerful the ten tails is i'm surprised that the so6p alone was able to beat it, and this is the Juubi's incomplete form so the sage had to go up against an even stronger version

 

[Jim Rider]

Tbh i wouldn't be surprised if somehow the soul of the so6p makes an appearence during the fight. Either to Naruto or in front of everyone. Surely if the so6p was that great he would of foreseen the 10T rising again and would of done something like 4th Hokage did for naruto

 

[phantomlord22]

you are talking about Rikudo sennin the true SO6P

that's the why people thought he was just a name in the history

 

[saar0507]

and the form you posted isnt evan in his full power ... add the chackra of the nine tails and eight tails to it (wow)

 

[Uchiha Samater]

so6p v juubi?

we r still waiting for the madara hashirama flashback lol