User blog comment:AP Sejuani/Vortelle, the Black Hole/@comment-10958553-20140919165106/@comment-26055105-20140919165927

Thanks for the feedback! :)

My intention with this champion was to create a champion with a very powerful combo gated by the dual costs; having both energy and mana simultaneously limits all-in potential as well as sustain.

With the cost on Surge, that was the initial intention, but I never really specified.