"omg kassadin so broken"

E got a 1 second cooldown reduction. Which is barely relevant in early because you need to prep the ability count first before you can even use it which will almost always take longer than the cooldown itself anyways outside of a matchup like Yasuo mid for example. And it's barely relevant in late because everyone spams abilities in teamfights anyways, and the cooldown is still long enough it's not likely he'd get it more than twice a teamfight either way.

Ultimate got a +10% AP ratio increase. Oh wow, I was sure using my ultimate to HIT THEM WITH IT. What a huge fucking difference.

Thanks guys, I now know Kassadin is broken!