In Morrowind, Akulakhan is a huge threat to Vvardenfell and mainland Morrowind. He will spread out to Tamriel eventually. From his physical stature alone, he could probably topple legions and crush cities. That speaks nothing of his divine power. I'm not sure what he'd be capable of, but it wouldn't be pleasant. What I do know is that almost nothing the Empire threw at it would do much good against the god Dagoth Ur and a possible henchman god Nerevar Incarnate. Dagoth Ur and Nerevar are the Kings of Morrowind, and Akulakhan is their herald of destruction and reform. Without even doing anything, the blight storm spreads and Tamriel has to fend off blighted creatures.
In Oblivion, Tamriel's very life is threatened again by Mehrunes Dagon, another immortal enemy who seeks to destroy Tamriel and claim it as his own. He is a Daedric Prince, and is therefore immortal. A doom sweeps the land since the Champion of Cyrodiil was felled in the Battle for Bruma and Martin has to fend for himself. Martin seeks to relight the Dragonfires and is promptly escorted on advice of the Champion of Cyrodiil as he/she lay dying, and Baurus and Jauffre and the other remaining Blades. Upon arrival, Mehrunes Dagon utterly destroys Jauffre and Baurus, picks Martin up and hurls him likes Auri'El hurled the Heart of Lorkhan with his mighty bow to Red Mountain. Mehrunes Dagon is here in the flesh. He notices not long after that severe storms are gaining traction in Cyrodiil. It is no doubt the blight storm mysteriously caused by Red Mountain in Vvardenfell. No one knows why yet. The new political hierarchy and the reversal of fortune of the Temple Tribunal may have something to do with Morrowinds ills.
After two hundred years, a new threat arises from the north. Skyrim. Alduin the World Eater is upon us! Both Mehrunes Dagon and Dagoth Ur become aware of the threat and decide to independently deal with this new threat since they both have sweet deals going on and Mehrunes especially won't have Alduin destroy Tamriel because of all the grief Alduin has caused him before. Dagoth Ur suggests to his old friend who still isn't quite sure of the Nerevarine's motives that he go to Skyrim to evaluate the threat and deal with it accordingly. Let's not use Numidium unless we have to. The Nerevarine grabs his or her most valuable goods and departs to Skyrim to evaluate the threat. The Nerevarine stays at the Riverwood Inn just for some mead. Not that it matters upon reaching godhood, but worldly habits die hard, even for a god. While downing some mead, it is learned that there is a Blades agent who knows some critical information on the Alduin business. She has two friends with her, an old geezer and some adventurer type. Nothing is learned, and someone pulls a sword. The Nerevarine wastes both of them, and feels a disturbance, as if a thread of prophecy was severed. He decides to continue in this doomed world he has created.
Alduin returns from Sovngarde and upon his arrival is met with resistance by Dagon's Daedric army and New Ordinators. Alduin promptly eats them all. This angers the two and now Tamriel is in a three way war against the antagonizing titans of The Elder Scrolls.
That was just a scenario I came up with that would ensure Numidium/Dagon victory. I was in a good mood and thought I'd experiment. But this isn't fan fiction and that isn't where I want to go with this. This is the Lore section after all, and I have lore questions.
Even with a Dagon/Dagoth victory, would they still be overshadowed by Alduin, who can apparantly devour the world and the souls of the people who live in them to bring about the next kalpa? Could he be beaten back and or destroyed?
The reason I ask this is because Dagoth Ur was the most interesting antagonist I've seen in the series so far. Mehrunes not as much, but the Mythic Dawn cult was pretty interesting. However, I think it's unfair because Alduin had horrid writing, we learned literally NOTHING about Alduin OR his motives, but is somehow above everything and nothing can be done against him except deeds done by the Dovahkiin. Dagoth Ur spills all his secrets, you know his motives and he regrets having to strike against you. Mehrunes Dagon was completely invincible and had to be struck down and mortally wounded by a god. I really wish Alduin would have engaged us in some actual conversation explaining the turn of the kalpas and what he does and what goes on in his head but nope, we get nothing.
So does Alduin, or in the Jel language, The-Dragon-Who-Had-Potential-For-Good-Writing, can he take away and eat Tamriel despite resistance from Dagoth Ur, Akulakhan and Mehrunes Dagon? If he could not stand the combined forces of Daedra and False Divinity, could he at least beat them if there were only of of them? So say only Dagoths plan won or only Mehrunes succeeded.
Thanks in advance if you can help me. I'm just trying to gain a better understanding of how the world would be in the case of a failure of the player character in either Morrowind or Oblivion. I'm curious as to how powerful Alduin really is because Skyrim really doesn't do him justice when a Cave Bear or Elder Dragon is far more fearsome than the freaking WORLD EATER is.
Your turn to talk, ours to listen.