Mei's acid does not melt that quickly, look at what it does ti Sasuke's skin, it slowly melts it. Tsunade with Byakugo quicly heals faster or is equal to the rate of the acid melting.
Tsunade fights recklessly because she can,so she will just jump in and take Mei down.
your right it doesnt melt things at an incredibly fast pace but was strong enough to start melting the susano ribcage.. Im not saying this jutsu is going to oneshot tsunade however the mist is a great start to wearing Tsunade down and making her have to heal and also a great defence..
Mei whiles staying inside the mist can attack from a distance while Tsunade is trying to get close.. Mei can also turn the battlefield into lava so Tsunade isnt charging in anywhere.. she will have to heal from both stepping in lava and going through acid mist.. aswell as having to deal with assault from long range attacks from Mei.. this will constantly wear down Tsunades chakra.. you can only regenerate so much
what will mei do against katsuya
katsuya size won't get on or two shotted with lava and while mei is doing so acid stomps
Tsunade isnt going to Summon Katsuyu into a field full of lava..
If she does Katsuyu will be entering a field covered in lava and acid mist.. this is going to cause damage.. katsuyu is as you said incredibly large... she wont be escaping the mist or the lava fast.. where as Mei can avoid any acid thrown her way
1. She isn't wearing her down. The Hokage is a chakra beats. + Tsunade can avoid the mist by jumping above it.
2. She would exactly do that. if the starting distance is less than 15 m. She could kill Mei before the acid melts her.
@bold.. do you really think she can escape it by jumping above it :|
what do you think she will then be falling into as she comes down from the jump... thats right.. the acidic mist :|
i know Tsunade's a chakra beast which is why Mei has to constantly make her heal.. she does this by setting up the acidic mist defence and the field of lava.. tsunade would have to constantly heal being inside it.. she also has to avoid Mei's attacks.. this means she will be dancing around in the mist and the lava trying to avoid Mei's long range attacks..
Tsunade might be a chakra beast but her regeneration takes up quite the bit of chakra
So Tsunade goes to charge in.. as Mei spits lava in her face :| ..