Hashi and tobirama were FULLY POWERED and PERFECTED EDO's there are NO differences between kabuto's version and oro's except for quantity. Everyone who said "Madara didn't mention that hizuren could stop him therefore he's not in hashi's league" needs to GTFO. Justu are used for the situation its necessary for just because u have a strong or OP justu doesn't mean u should use it. Hizuren stated that their power were just as great as when they were alive, yet everyone ignores this. Feats and justu aren't what win a fight. Granted oro controlling the edos were the very thing that put hizuren in danger were also the very thing that gave him an edge. But a 70 year old man who wasn't even resolved enough to kill his favorite student who he consider a son, fought against two legendary kages plus oro at the SAME time while dealing with his own inner demons and Severely handicapped, still came out of that fight with his primary objective cleared (protecting konoha). I'd say that's a pretty amazing feat on its own. And I'd like to see anyone else who could've done the same.