I actually play katarin a lot and she is a very good player but i think she is too OP say your opinion*
(op=very strong) * 
Why not both? Annoying and op.
People will defend her though. "She's easily countered by cc" which is partly true. But before any normal human can react fast enough to stun her she has already dealt enough damage to win the fight for her team since Q and W alone deal huge damage (especially with Luden's echo).
One change which might make her more forgiving is to ramp up her ult damage so that it starts by dealing low damage and then gradually starts dealing more during the channelling. Also I wouldn't mind if part of her Q damage was moved to the mark proc'ing part and the range was decreased.
But meh... I'm sure Riot is already looking at her.
maybe?
OP and easily dealable are not mutually exclusive.
Walking pentakill on a stick with the skillcap so low you only need 2 fingers on each hand.=OP dies in -.3 seconds if you CC her=dealable
I think she's slightly OP given that she's such a snowball champion. She's basically the AOE version of LB but while LB has 47.8% winrate, katarina has 52.4%. This might have to do with the fact that AOE > single target champs in terms of winrate (since soloQ is all about the AOE wombo combo in teamfights). But on the other hand, her winrate seems to be a lot higher in shorter games than in longer games ( http://champion.gg/champion/Katarina )
I think her early game needs to be tackled a bit more. It's fine that she's a potential snowball at all times, even when behind, but it's not fine if she can snowball out of control purely by brute force. She should either require some cunning skills or help from the jungler to snowball. Currently she just outdamages most champs.
Both.
Katarina blinks so fast and kills people in under a second where the "just CC her," argument is bullshit.
Yet at the same time while that's annoying, she also has huge AOE damage and can go kill entire teams easily, it's just a bit much.
