Kai'Sa, A PSA

Stop playing Kai'Sa as an ADC. She is an Assassin. I don't know what riot was thinking when they previewed her in the bot lane for her champ spotlight as though it were viable. Her range is far shorter than any marksman, her only form of harass aside from her easily dodgeable void seeker is easily aggro'd by minions, and unlike other short-range marksman (Vayne, Lucian) her mobility is tied to her ultimate. I don't count her Supercharger because its movespeed is incredibly situational and negatable in a lot of instances. The invisibility is nice but only comes in after two attack speed items + boots assuming you went the precision tree, 3 if you didn't. She has neither the brain cancer inducing base damage and early game kill potential that lucian has, nor the tank meta negating god tier late gaming true damage of vayne. Her kit feels and plays like an assassin, which is why her highest winrate position is jungler. And her highest winrate position clocks her in at a 43% winrate.

EDIT: Her ADC has a 43% winrate as well, so this is a mute point.

Kai'Sa isn't viable as an ADC. You want to go goof around in norms to get the mission down, go right ahead. But I'm asking nicely, keep them out of my ranked games. I'm sure she'll get buffed in a patch or two, and with the complexity of her kit i'm sure they are tricks and trades that will surface to make her far better as players learn how to play them. But I'm far more inclined to believe that after the releases of the meta busting nightmares there were day 1 Zoe, Ornn, Xayah, and Camille, they set her off in an underpowered state to avoid creating another new champ that was gonna be perma-banned anyway.