User blog comment:NightbladeX/Kassadin Rework: Thoughts/@comment-2010873-20140327191314

I don't know why Kassadin's ban rate fell so much after the rework. The rework made him even more unpleasant to play against him than he already was. Even if he did receive a nerf in his pre-6 early game, he should still be a prioritized ban. The reduction to the CD in his ult made him even less pleasant to play against, since he's more mobile and now even more difficult to chase and gank. And, as a previous comment said before, he snowballs even harder, especially since the lower CD in ult and better mana regen due to W means his roaming is even stronger. Not to mention his late game is arguably stronger because now he is built similarly to a late game ryze with RoA and maybe frozen heart (making him a tanky sustained burst assassin monster) with the bonus of a blink every 3 sec.