Hydaelyn at large (is there a compilation of info yet?)

[Enkidoh]

That was an interesting revelation though - but then a little logic needs to be applied. Given the natural untrustworthy and darkly ominous nature of the Ascians, there is no real proof that what the Ala Mhigan kids would have ended up summoning really would have been Rhalgr anyway - it could have been anything for all we know, a Primal, or some other kind of aetheric entity masquerading as Rhalgr's form (and it's probably something the player will never know, probably a good thing).

After all, look at Good King Moggle Mog the XIIth, it's been stated he is not a Primal despite being summoned in the same way and having the exact same level of control and corruption over those who summoned him. It's highly likely the ultimately thwarted plans of the misguided Ala Mhigan kids to summon Rhalgr could have ended up with similar (and potentially dangerous) results.