The current State of Kassadin
First of all, I'd like to say that I am unranked, I have only played a few ranked games and they were to help my friends with their promos, so those of you that declare peoples' arguments invalid because of their rank alone should just leave now. Even though I don't play ranked, I have been playing since summer of 2010 so I like to think I know a thing or two about balance and how the game works.
Now on to the subject at hand, everyone's favorite dead horse to beat,
himself. I am not here to complain about what has been done to him, but to suggest what should be done with him from this point. Now let's get to the changes I'd personally like to see happen with him.
Q-Null Sphere : I think this skill is in a decent spot right now, but I believe the base damage is a bit lacking. I would like to see it raised to 80/115/150/185/220, while simultaneously removing the channel interrupt from the skill. (Maybe lower the base value of the magic damage shield to compensate for the damage increase).
W-Nether Blade : I think his old silence should be restored on this skill with a scaling .5/.75/1/1.25/1.5 second duration. I think this would be a reasonable idea for one reason, it is melee, which makes it much riskier to be put to use than the point-and-click silence his Null Sphere once had. (As a side note, having a silence back in his kit would make his joke make much more sense.) As for the damage on the skill, it is fine where it is, not too weak, but not too strong.
E-Force Pulse: I think this skill also needs a base damage boost as well. Much like null sphere, I believe its base damage should be raised to 80/115/150/185/220. Everything else about this skill is fine, and I personally love the charge building part of it because if you play smart you can get free charges from your jungler while they are doing raptors, and in some cases such as when Shaco uses his Decieve, you can see that you gained a charge when neither you or your laning opponent had cast a spell, which could help warn you that you are about to be ganked.
R-Riftwalk: This skill is a slippery slope, because if it is strong then Kassadin is a monster, but if it is weak he is utter trash. For this reason I will try to be subtle with my suggested changes. First, remove the maximum mana damage from the skill, it is so small that it's almost like it isn't there at all. Now for the range, I believe that the range of the skill should scale up with the level of the skill, I suggest a tentative 450/525/600 scaling and raising the cooldown to 8/6/4. This would keep his early game weaker to allow people to chase and escape him, but allow him to have a chance at reaching the enemy team's backline in lategame. This may be a bit too much so I came up with an alternative solution. Just keep the range at 500 at all ranks, and change the mana cost scaling from exponential back to the old linear scaling it had in the past, allowing him to riftwalk for a lower range, but more times before it becomes uncastable because of the mana cost.
So what do you guys think? Constructive criticism is welcome, but if you are just here to complain, I suggest not commenting at all. Thanks.