User blog comment:Atmey/Netherblade Kassadin/@comment-5009341-20120623125918/@comment-3529242-20120623205216

Q is auto attack, he would have to melee the target before he gets cced, it should be rewarding. And yeah the slow might be too much, I'll change it. And the silent duration is 0.4 seconds longer than the original one.

W, Nothing like chogath, or maybe 5 health per hit.

R, as he has one ranged ability I think 100 more range is somewhat justified, upping the costs a bit.

The base damage is high because he is supposed to build more tanky now.

About the mana, yes that what makes it hard to use the ult just to move around, I just wanted to try something different, and while you are supposed to take more hits now, health is a valuable resource too.