All i have to say is to the people talking about how weak hanzou was, and how they thought he was stronger, please stop. Think of it the way mifune put it people are like swords. Hanzou simply lost sight of his goals and ambitions, he probably also started to think to highly of himself and stop practicing and acknowledging that there were other ninjas who were as strong and stronger. Thats probably why he was so easily defeated by pain. We saw he had no scratches, that one page was key to the fast that hanzou hadnt been developing his skillz, because we once saw him easily defeat the 3 sannin, oro, tsunade, and jiraiya, but all of them made it there goal to get stronger. Thats why jiraiya was able to actually kill some of the pains and inflict damage despite him not knowing pains secret. and another reason you cud tell he hadnt developed his skillz any further is because pain said he used to respect him, meanin he didnt any longer. Mifune on the other hand is obviously strong, you cant assume oh he isnt that strong he barely did anything in the fight, answer he didnt have to because hanzou wasnt on his level, and the reason for this is he still has faith and will power, in essence you could say he has the will of fire in him. his blade didnt dull because he still practiced so at times like this he could still protect the things he believed in. So, summary Hanzou lost his faith therefore he lostbhis true strength and one more thing is that like kakashi said to kakuza the next generation will always surpass the next, because like hanzou, kakuza believed he was unbeatable and unkillable.
Next, Spoiler time lol
1. Hanzou is going to be put to peace because of mifunes word, bye hanzou
2.chiyo the brillant old hag shinobi is going to fix up an antidote for kankuro, or she will just give it to them so they can do it themselves. I think chiyo will join the allied forces and help them unless kabuto forces herout of consciousness and makes her into a zombie ninja lol
3. I think we will see probably 3 pages about sasuke next chapter and maybe 2 of naruto, then wwe will see the end of kakashis rampage.
Welll im done!