Holy broken. The damage, mobility, everything, it's all far, FAR above anything even remotely acceptable.
How do you go 0/#/# in a match as either of these champions? It's got to be intentional. There's no way. There literally can't be a way.
[zombie-brand-mindblown]
These two make Riven/Yasuo/Lee Sin look balanced. This is crazy. I still just can't even. Wow.
Matake2 votesIf you've been playing since S2/3 then how can you not remember which season you actually started in? You should be able to remember which champion was released at the time you started playing.
Also, Kat is OP but only early game and mostly because of ARAM having constant teamfights which she excels at. Graves is OP but only while jungling and teamfighting.
You're obviously inexperienced. ARAM =/= SR at all. But Summoner's Rift could learn a thing or two from ARAM.
Thresh Outta Fux1 votesWhen I started, I had little to no experience in mobas. I started when Fiddlesticks Mid was common, and Support Fidd was unheard of.
RogueWill1 votesGood old 
patch. Tried her (the old champions first week used to be rotation week) since she was a tank...she was completely useless upon release.
CancerBasedGod1 votesKat dies in half a second if she is CCed (especially when you CC her in ult) but your average noob freaks and tries to run.
DragonManSquid1 votesYeah, and people say kat is hard. Her mechanics are pretty basic.