@Selenial
I haven't conceded on that and I am not being mad, just having a casual conversation.
I actually recognize the official tension between "school of thoughts" that have defined Star Wars lore in the matters of most powerful characters. I believe that we have a league of elites. Most of the fans choose, I remain nuetral.
As for Emperor's fate:
Originally posted by Nephthys
What the hell are you thinking Legend, that Vitiate is still alive up to the PT? Of course he's fricking dead. 😬
BioWare (will) decide about this matter.
Galactic Tenebrae would be an anomaly that'd already absorbed the energies of Mortis in the form of all life in the galaxy, which had the same Force energy that Mortis embodied flowing through it.
Through the highest level of dark side ritualistic/alchemical amplification we've seen in the mythos: Tenebrae was already above the likes of Gethzerion (corrupt master of Aryan Magick, dropping a hundred storm troopers with a hand gesture), life-manipulating Plagueis in his wildest dreams at any level he would have ever achieved through corrupting the Force, Nihilus in that Tenebrae was more skillful in the dark arts as well as equally powerful, Bane with orbalisks, TFA Luke, and was an anomaly of unnaturally accumulated energies. Still not sure if any of these beings were necessarily below the Ones.
When THoT defeated Tenebrae he was in a weakened state, so was THoT but THoT got a light-side amp for his selflessness in that battle and Tenebrae received no such amp and remained weakened throughout the fight. Hell, the Jedi Exile just about got Tenebrae by surprise. Tenebrae gave away much of his power on corruption. Corruption also gave him power but the energies that he embodied were splintered all the time. They'd be far more spread about in a Galactic Tenebrae because of the subjects he'd raise utilizing dimensional energies.
The Celestials created the Force because that galaxy needed it to stay together, they left their dimensional technologies behind, the only ones who stayed in for arbitrage were the "Overlords", Celestials granted with astronomical access to Force energy. However, Mortis was the Force, it had all the energy in the galaxy, not the Ones themselves.
Perhaps Naga Sadow had the most energy we've seen in the mythos through his amplification crystals. Naga Sadow when harnessing the energy of amplification crystals aboard his capital ship (dude could rip cores from stars)
However, the Kaiburr crystal gave Vader and Luke that sort of cosmic power over the Force, perhaps Anakin channeling energy directly from Mortis is the closest thing we've seen to Galactic Tenebrae, still not on the same level IMO.
After Tenebrae's planned ritual, two of the Overlords on Mortis would have vanished as Tenebrae had become a dark side entity, only Son would have enough energy to thrive there - all those creatures would become corrupted by dark side energies.
Son and Tenebrae would have a Force bond, peers in a symbiotic relationship.
If some humanoid Light Side Sage were to find a way to annihilate all evil influence on the galaxy, using his powers and the powers of other light side sages (Force harmony) to create some sort of galactic Utopia, then only Daughter would remain on Mortis.