Kakashi won't be able to differentiate between Mei, the hidden mist and the Futton. Kakashi ends up getting melted mid diff.
Mei wins mid difficulty. No intel means that Kakashi won't know the difference between hidden mist or acid mist so he is likely to sustain serious injuries right as the battle begins, putting this fight ultimately in Mei's favour.
For all the people saying Kakashi: How does he deal with Mei obscuring his vision with Hidden Mist, surrounding him with acid mist, large-scale suitons, and oceans of lava?
Yes he will, her hidden mist is not as potent as Zabuza's, furthermore, he can just hide underground until it disperses.
He can detect through other sensors like his nose, and he already shat on the mist made by Zabuza.
On topic: Kakashi takes this rather easily.
With his dogs, who won't be able to help him here.
Smell? You kidding me? Rofl.
Kakashi can track through his nose, as seen in 3rd Shinobi war against the invisible Iwagakure Shinobi. Naruto noted he is a better nose tracker than Kiba. Yes, he can track through smell as manga showed, and he has the dogs to aid him; which you haven't provided an evidence on how they won't help him.
Mei melts them all with her futton or covers the ground around herself with youton.
And what if Kakashi can smell her? That's hardly helping him in a situation like this. I need some scans btw, I don't remember this.
What. Mei's mist is not only more potent, she can also add a layer of Futton: Komu to turn the mist into a deadly trap. Kakashi has no intel, therefore he won't expect something like this from Mei. He gets melted, deal with it.
For all the people saying Kakashi: How does he deal with Mei obscuring his vision with Hidden Mist, surrounding him with acid mist, large-scale suitons, and oceans of lava?