What if someone managed to bring back the old sage in edo form, would that be the most op edo ? Would his spirit even allow such a tech to even work? How many gai clones would it take to beat him? Can gai use shadow clone? If he did holy shit who wins?
1. It wouldn't be the most powerful edo, the strongest edo would be
kaguya
2. Probably. Madara was able to stop edo tensei after all. And considering Hagoromo is the
father of shinobi he
might have special abilities or attributes that exclude him from forced summoning
3. His battle strength is
unknown so there is no answer for how many gais it would take to defeat him
4. Gai has
never used shadow clone in the manga but he most likely can. Still
refer to #3 we dont know hago's battle strength