So how do you lane against new kat?

the new kat is pretty damn strong in laning phase, but if you play really safe (undertower) lvl 2-3-4 where her biggest powerspikes are and you don't give up fb you should be able to beat her lvl 6 with most champs. I know it sounds weird, but trust me 375 damage over 2.5 second isn't as much as the burst of most other mid laners

Feed her a kill pre 6 and you will just be forced out of lane a ton Just don't die Sorta like Riven Zed Renekton DArius Pantheon etc... Also a common combo is to Q E to target W then R Herr E will reset since it picks up W dagger while spinning DO NOT RUN TOWARD THE DAGGER THE Q PLACED This will give her a second E reset and a second spin which is basically 100-0 in 3-4 seconds

One cool trick I found is to try and plant some form of "positional damage" like a heimer turret or a jhin/cait trap where she puts her daggers. Doing so apparently forces her into a "lose-lose" scenario (as she either gives up a decent chunk of her damage or does the damage but gets put in a bad spot), making her far easier to deal with.

Just play and full combo her if she dares pick up a dagger near you or goes for cs