I vote we nerf Kat's passive
Seriously, 15 seconds off all abilities cooldowns? none of them even have 15 seconds, also I know you KAtarina mains, "OMG just get good you %%%got her passive's not the problem, you just suck!"
trust me, if anything make it that her cooldowns are reduced by 25%-50% upon kills or assists, I mean it's far more reasonable then pretty much URF for one champ.
, which is a staple first item for any AP vs. AP matchup, then it's clearly not the boards fault..