@RiotJag @RiotRepertoire @RiotMeddler I think these Kai'Sa changes are in the wrong direction.
I don't think she needs a bigger range, her late game winrates show that it isn't her range that hurts her the most, it's how delayed her powerspike is compared to other ADCs.
The biggest problem is how huge of difference is between her base Q and upgraded Q, and how much AD is required to upgrade it. For context:
- Base Q Damage: Base 45 / 61.25 / 77.5 / 93.75 / 110 (+ 40% bonus AD) (+ 20% AP)
- Upgraded Q Damage: 112.5 / 152.125 / 193.75 / 234.375 / 275 (+ 100% bonus AD) (+ 50% AP)_ (more than doubles the damage!)_
This essentially makes rushing 100 AD mandatory, which makes her builds feel incredibly awkward, as you pretty much have to forgo any attack speed or AP until you have 100 bonus AD.
If you want to buff Kai'Sa, reduce the amount of bonus AD required to upgrade her Q to 75. AD items don't give as much AD compared to AP items, so it's rather unintuitive to require the same bonus AD and AP to upgrade her Q and W respectively.
Changing this would be a buff to virtually every build on Kai'Sa, AD would hit it's power spike sooner, and Hybrid/AP builds wouldn't need as much AD to function.
Another buff to consider would be her W Upgrade, as it doesn't really feel very rewarding to upgrade. I think if the W Upgrade would mark enemy champions to be prioritized by her Q, it would make it much more worthwhile to go for upgraded W.

in bot lane for most my Kai Sa games.
feels a lot better than her winrate would indicate. Part of it all is just learning her builds. I agree that
feels super nice on her and may be a core item, lifesteal in general feels super good with her due to her high base attack speed.
was the model but she has a really nice tumble that can keep her safe from ganks.