Board Thread:Versus Debates/@comment-30323490-20171001151428/@comment-32943605-20171001183442

So, why did Tsunade ban Naruto from using rasenshuriken. It's because he didn't know how to use sage mode. Theoretically speaking, even if he could use rasenshuriken with Nine Tails Chakra Mode, Vladosaurus said he's not allowed to use any modes. And if he did throw one somehow, Kakashi would just Kamui it away.