You'd have to change some skills in order to give the same advantage to some of the Legion's classes. Like if four of their classes can jump into thin air or modify their speed, it's only fair that at least some of ours can do the same thing.
I disagree because whilst mages do constant damage and have burst skills the warlock skills are control and support, being the sphere and the arrow the only ones that effectively do burst damages. In order to a real balance we have to have speed modifiers in classes that can also burst or tank, like barbarian or rogue.