I think the balance team has a rough time "balancing assassins"

You nerf something from an assassin and they end up being useless.

You buff something on an Assassin and they become the biggest issue of the game.

Remember when those new katarina changes were on PBE but Riot changed their mind? by now it would've been Fizz, Akali and Katarina who ain't viable as burst champions. When I see Fizz I don't worry about the burst and I can counter him. When I see Akali I don't worry about her ult cuz I can just bait it out into a trap.

But I wonder how Riot would Nerf Katarina this time