Sundering and specific character questions. [Spoilers]

[Erendis]

I raise you my theory: The Twelve weren't Aliens, but just the Convocation Members befote being sundered. Not couting the fourteenth, and counting two Convocation members as one because Nald'thal is a twin deity.

I mean, I believe they say that the Twelve walked the planet before the First Calamity, which could be around the time of Amaurot. And those coming up with them being gods were the first generation of Sundered who still remembered a little, so maybe they just remembered some powerful figures/leaders and interpreted that to deities.

Convocation members was the common theory on Lore forums, that's why I suggested it was aliens instead.

The first calamity though happened some time after the Amaurot fell considering at first there was a failure with the Thirteenth before they figured out there also needs to be a calamity on the Source.