Very true. However, Seogorath is supposed to be one of Lorkhan's lesser creations, right? so he mantles himself and part of himself, which does kinda make sense.
I'm afraid it doesn't. The et'Ada are the strongest concepts that lesser concepts such as mortals seek to imitate and by imitation become them in every way. Suggesting they mantle themselves is nonsensical.
For the birth of Sheogorath you're using a description that implies way too much.
Currently we know that the creation of Mundus did not only transform the Aedra, but also the Daedra. A primary example can be found in the Aldudagga where Mehrunes Dagon once was a Leaper Demon. Other then that, Census of Daedra Lords suggests that Hermaus Mora was made of discarded ideas.
For Sheogorath specifically there is the entry in Faith in the Empire:
Contemporary sources indicate that his roots are in Aldmeri creation stories; therein, he is 'born' when Lorkhan's divine spark is removed. One crucial myth calls him the 'Sithis-shaped hole' of the world.As such it can be said that Sheogorath was born simultaneously with Lorkhans demise, however nothing is said about a physical relation. Sheogorath wasn't born out of Lorkhans deterius or consciously made by him as your description implies. Personally I reckon that during the convention, when Lorkhan lost his heart and Mundus was stabalized and given a special divinity, that the concept of madness -Mundus is a mad-ball of mixed schizophrenia- came into existence and became embodied by Sheogorath.
It's hard to tie the Shivering Isles into this all. Jygs exposition of being cursed by the Daedra doesn't make sense in this context. You can assume it to be false, but I reckon someone goofed up. (No, you don't have to post your explanation that makes it fit).
Exactly, it's just a flesh wound. Like something so paltry as having his heart ripped out is gonna keep him down for long.
No need for the sarcasm. Remember Anaxes? Trapped, not killed. You know why.
Actually, is Tiber Septim the most recent? On the chance that Pelinal was the Shezzarine, and by mantling Pelinal (and being told by Talos you are Pelinal reborn) doesn't that also sort of make the CoC a Shezzarine? And on that chain of logic, since he also mantled Sheogorath, that means Shor may well have gone totally bonkers!
You can't really make those assumptions about the player character. You don't know what he did. If she even bothered with the Oblivion crisis. Nevermind that his completion of all guilds and every other quest, is a bit of an unrealistic achievement for a single woman. Chalk it up to gameplay that you can.
So, the Eight Divines do exist. They are the Aedra (or at least some of the Aedra). But what/who exactly is Talos? I know that he/it was Emperor Tiber Septim, but was later worshipped as the Ninth Divine Talos. Is Talos actually a Divine, or is he/it just an idea that the worshippers of the Nine Divines believe to be a Divine?
I didn't see this linked yet. http://www.imperial-library.info/obbooks/shezzardivines.shtml, been around before Knights of the Nine. It explains that there have been Nine Divines before. It's significant in combination with the Arcturian Heresy. The god Talos that Tiber became by manteling Ysmir, Shors | Shezarrs avatar was already part of it. Talos is not so much a new Divine as the guise of an old one picked by a new actor.