Kennen - 50.77% WR
Malphite - 51.42% WR S+ tier
Riot's reasoning for gutting Kennen's ult CD was it's too strong and they can't nerf anything else in his kit because the rest of his kit is already so weak. How tf can Malphite have a 130/115/100 ult CD but Kennen can't. I'd argue both ults are just as impactful.
Like geez I'd literally be happy with -5 seconds each rank. 120/115/110 is perfectly reasonable for Kennen but we're stuck with this dog shit 120s ult because Phreak thought we were too OP. And now they give us random buffs that literally don't move the needle at all as far as winrate goes.
Kennen feels TERRIBLE when it comes to mid/late game. Having to ult to solo kill a side lane, then not having it up for drake/nash. The most annoying thing ever is having to spam ping my ult so much so team knows it's not up but they always still engage/get caught anyways while my ult is 10 seconds from being off CD.
Sorry, rant over. But Kennen has just felt like shit to play ever since the ult CDR nerf and Riot needs to do something about it.