Board Thread:Naruto Discussions/@comment-27202380-20151124031155

We saw how strong the third raikage was, he was able to fight gyuki(Eight-tails) on even terms and fough for three days before dying. His chakra and strength levels were so high. Judging from that, how strong do you think the first kages were. We do know that edo tensei is weaker than being alive. 