Tsunade isn't fast but, I agree with some of what you said but Madara has his Gunbai Barrier to protect himself from Tsunade's attacks and can squash her with his Susano'o arm.
Who said Tsunade isn't fast? She first started
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and then single handedly went after Madara.
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She travelled a 50 m distance in the blink of an eye. Madara only managed to manifest a ribcage susanoo right before she attacked him. He wasn't quick enough to manifest the full susanoo.
I can't see this scenario happening.Danzo doesn't posess super human strength like Tsunade.
She can easily destroy/block his susanno arms like A.
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Face it Tsunade haters ..it's not happening.And even if someone wont accept this proof,then let me ask you one question:Why couldn't 5 rinnegan sharingan moku bunshin crush her? Right they couldn't!
Actually Danzo has Hashirama's cells within his body so logically speaking, he should be above Tsunade in strength because the idea of Tsunade being physically stronger than Hashirama doesn't make much sense. A kick from Danzo sent Karin flying and that wasn't even a full powered kick. Not to mention that unlike Tsunade, none of his strength is chakra based. The clones didn't bother utilizing susanoo arms to crush her, all they did was stab her.
Strength is useless when you are getting crushed by susanoo because her arms are going to be constrained so she won't be able to utilize her strength to break out of the grip.
lol madara wins med diff. Sharingan genjutsu then proceed to slash the head off. Katsuyu is summoned and gets controlled by madara.
Not to break it to you or anything, but it takes direct eye contact to put someone in genjutsu. Tsunade has full knowledge on it and didn't get genjutsued despite the fact she fought against more sets of eyes than she is doing in this match up. Your scenario is quite unlikely and very unreasonable.