Originally Posted by A Cantaloupe
Stuns shut her down pretty easily, too.
I'm not going to say that Katarina is or isn't OP, but this is not the first time I see LoL forum the argument "It's not OP, just FOCUS/CC him/her and you hurt/easily kill that champ"
In my very very short experience in this game I know that (more or less at the same level/build) if a champ is focused/cced there is nothing to do and 99% you are dead.
The only ways I consider to get away a CC/focus are cleanse and flesh, and are summoner spells, so, everyone can take and use them in the right way.