These zones were one of the most important and sought after resource locations in the battlefield, as countless great battles were centered around it.
What made them special was due to the nature of the battlefield, where the dense tides of Aether could gather around a singular Aspect like lightning or frost or fire even the more unknown Aspects like Gravity or Blood and would then supercharge those Aspects, creating small pockets where you could easily collect an incredible amount of Aether Aspected to a particular bloodline.
Such an easy method to refine a bloodline or increase a Mage's grasp of their spells was a commodity that could only be found in this place. This led to astounding battles fought over the rights to reside in any of the Zones.