The "pantheon" that encompasses all of the various, unrelated Gods that reside or pledge themselves to Niflheim or other locales in the Elemental Chaos.
The Domain of Darkness is the pantheon that composes most of the Shadowfell
The pantheon that hosts Astrival and its Deities
The Domain of Light is the pantheon that resides over the Feywild
The Domain of Psyche is the pantheon that is comprised of the deities of Cerebrum
