Just to be clear I’m not posting this because I think I have a right to dictate how you write your story(which I do not) or what you’re planning doesn’t match my expectations(how original sin ended was not what I expected it to be and I liked your version better!). This is simply the culture geek in me giving their opinion:
I think what you’re doing with Tharizdun and the Luxon is lazy writing and frankly inaccurate to the daoist canon! Yin and yang are not good vs evil and it’s definitely not light vs dark. It’s light and dark, man and woman, passive and aggressive working together in harmony never in conflict with each other. Which doesn’t describe the relationship between them because they seem more like enemies than partners with Tharizdun’s motive to make the multiverse a void. Hard to do that when someone else keeps creating stuff to replace what you have destroyed, right?
Also I don’t agree with that connection and understanding can be associated with creation or that destruction cannot be attributed to something good even if it’s not mentioned in the post.
For example, do you think the Berlin Wall was created to connect the west and east and build understanding between the two sides? Do you think that it was an act of evil to tear down that wall and joining the two sides once again?
I’m not trying to berate you, I’m just so tired of people saying that the two opposite forces that they are writing are each other’s yin and yang and then have being god and the devil from the Abrahamic Christianity when they are not even close at all! If they are just going to be god and the devil then why bother with telling the audience that they’re yin and yang in the first place! Just have them be the forces of good and evil from start and don’t spread misinformation about an entire religion!
What you’re possibly planning to do with Tharizdun and the Luxon is exactly the same mistake that Nickelodeon did in legend of Korra with Raava and Vaatu. The thing with the dao is if you try to take one side away from it then the balance will be messed up and everyone will be miserable because of it. That didn’t happen because the show made it so it was a bad thing for Vaatu to gain any ground while there was no consequences for Raava to do the same. Hello Future Me actually expands on this in his videos and what changes he would made to make the second season fit more with the lore of atla and eastern philosophy that its magic system was based on.
It was actually from those same videos that I learned about orange and blue morality. I think that system would fit the Eldritch entities better than the black and white one that the primes and betrayers go by. They’re not the gods so why should they act and think like them? Admittedly it’s the hardest one to write because you have to think like something that’s not human.
You’re likely not interested in my version of the relationship but I imagined Tharizdun as a vulture. Yep, my version is a decomposer meaning something that eats dead things. Except instead of eating dead antelopes, it eats dead worlds or places that have stagnated so much that might as well be dead which would explain why it went after Tengar when nothing there had died(I’m basing this on the canon, just so you know). Just for it to be consequences for the oblivion being locked up and not doing its job properly of eating dead worlds to prevent their rot and corruption from spreading to other worlds or planes even. Just like the vultures.
Here’s a fun video to learn about the vulture and why it’s so important for us to protect them.