"If you are a mage or sympathetic to them, it is possible for you to make magic stronger across Thera. If you are a Battlerager or sympathetic to their cause, it possible for you to make magic weaker across Thera."

So let me make sure I understand. I can now make magic less or more reliable, depending on which side of the fence I am on?

If that is the case, my days of playing mages is over. Yay.