Kassadin one of the highest winrates and pickrates for mid lane.

Kassadin is the most polarizing character in league right now. I would says it's harder to balance his ult more than zoe's kit. He's either really really good or just plain shit.

He's virtually worthless for 20 mins, in a game that lasts 35. If you have a team that knows how to play around that he's great. Otherwise its shitgame, next. As a Kass player that is the most frustrating part about him. If its not Kass, its Ahri, she's worse because she has more utility sooner. I hate Kpop because of it now. Cassio too, and look at Pyke: https://lolalytics.com/ranked/worldwide/platinum/plus/tierlist/ These aren't much different. No word yet on Ahri nerfs though. Thanks Korea!

You play Kass you have to hope that

1. Your team doesn't feed early.
2. They have some concept of who is the initiator.
3. Your ADC isn't so good that they render you irrelevant by the time you come online.

You know that could hurt him lol but anyway he's pretty useless early and if his teammates feed/he losses the lane it's pretty much over.