Originally Posted by
Alenore
Maybe I've missed some lore somewhere, but where was it stated that Zodiark and Hydaelyn consumed aether like regular Primals?
They're the result of Creation magicks, not flawed summoning like current day primals. I'd consider Zodiark as a framework over reality on the Star, so they set laws of the world in aether through He, but He still needs to be fed aether everytime it must change things : rewrite laws = 50% ancients worth of aether, reseed life = 25%, etc.
Otherwise, we'd be way out of aether since Hydaelyn has been around these past 13000 years or so. Hydaelyn is also shown as out of aether and thus, unable to act. Wouldn't She simply feed on some aether to help us when we actually really need it, if She simply has the power to do so?
Besides, I've never got Hydaelyn summoning as a mean to stop the Final Days from coming, but to counter Zodiark. It's even said by Emet-Selch, when he explains that since She was summoned to stop Him, She had the power to "enervate Her foe". I understand that She used that power on Him, which split Zodiark in 14, and I suppose that since He was the Will of the Star, totally twined with the star at that point, it had the consequences of also splitting the world in Source and Reflections.