I agree with MrThinker.

Quote Originally Posted by ObsidianFire View Post
Or Hydaelyn wasn't designed to work like like Zoidark does. As far as I can tell, there's nothing saying that Primal's can't expend the aether used to power them. Just that it's usually not something they naturally want to do. However, we already know Hydaelyn is someplace that is constantly receiving and expunging aether (lifestream/underworld) all by itself.

I can see Hydaelyn's summoners looking at Zoidark and then making a Concept that doesn't have his same "hoard all the souls he can" impulses... or a primal that values keeping people alive more... all you'd need would be a Primal with "Rebirth" or something tied to it's concept and it might decide to let the original souls powering it go once it's got enough new ones. And then just repeat that...
And whose souls would she eat? Unknowing souls of the dead? Would not that be against their will? In that case she would be worse than Zodiark who kept souls of willing sacrifices.