Imo you give icarus dash to a warlock with blink and lightning slide, with storm caller is just asking for a confluence of abilities as annoying as smoke + clone + swarm, and for one or all of those things to be hit with a nerf. Edit: To clarify a concern, momentum based things have a habit of interacting in unintended ways. Like shatter, well, bubble, and snap skating. Ironically, Icarus is a good example of why this is probably a bad idea to ask for.