From the fight between Sassuke Itachi and Kabuto we know the weakness of susano ,It can't stop sound.Susano can't protect Madara from sound illusions.Naruto should summon
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those two old frogs who can use sound illusions.First of all Naruto and others need to separate Obito from Madara.Other wise Madara and Obito will dispel the sound illusion just like Sasuke and Itachi done against kabuto.Then they can seal him.
