Why did you do this to Vel'Koz?
This "rework" ended up just being nerfs to almost everything about him. w does less damage e does less damage passive does less damage until you get a good chunk of AP. Ult doesn't apply passive and only does good damage when you have a TON of ap, proc your passive on a TANK, then ult him (and only him).
In addition, now he doesn't scale well with any items, since flat mana is ridiculously less effective on him than mana regen, and now he doesn't scale well with magic pen since he does so much true damage instead, and only his ult scales well with AP.
I was really excited when they said they were going to make some small changes to Vel'Koz, but they completely screwed it up. They noted that Q and R were his most interesting abilities, but they didn't make W and E any more interesting (in fact, made them LESS interesting since now they do less damage) WHILE ruining his ult which WAS the best feeling when using Vel'Koz (ulting and melting a whole team); you can't do this anymore since his ult does so much less damage.