What is the soul?
The soul is the purest form of existence that is sentient.
It is what gives the object sentience, be it ethereal, intangible, or tangible. What defines the beings that can comprehend, grow, and evolve better than different non-sentient creatures is that they have souls.
It is also because every soul is different that no person is the same. Even if people are similar in some aspects, they are still fundamentally different existences. A soul, when formed, is pure. What changes and upgrades this soul is the sentient being it generates- the experiences, the life it has been through, and the individuality it created. That's what makes every creature different from the other.
No race was born or created evil, and vice versa; no race was innately born holy. It was the experiences and individuality that every person had that defined their nature. Just because someone could see an angel didn't mean it was a sacred being that needed to be revered.
It might be a crazy bastard who was hellbent on destroying the world because it had a lousy childhood. Well, too bad a lot of people are in the same situation, and they turned out entirely different (reality check: nobody is unique).
But what if there was a natural born, dark anomaly, of a soul that was entirely evil? What if that same soul had been dormant for a long time and due to an unfortunate or fortunate accident, in whatever way it seemed, fuse with a soul that had been stripped of everything, but it's holy nature and characteristics. What if those two souls that fused and were supposed to repel each other instead find harmony together? What kind of abnormal and perverse existence would be born by this union? What sort of creature would come out of this extraordinary miracle?
Xue Mo is the existence that came from this. And with all the benefits he gained and was yet to explore, there is one thing that anyone would kill to have.
That thing is the opportunity to wish for anything. This kind of aberrant opportunity had been given to Xue Mo, after the Dark light that shined from his soul started dimming.
"What in existence happened for me to get this kind of luck! If those weaklings were to know that after they sacrificed everything to kill me, I would still get this kind of opportunity, they would not have tried to die with me.
HAHAHAHAHAHA! To think that I, Xue Mo, the strongest and most powerful existence in the [Divine Hell Universe], would still be able to live and have this kind of opportunity. I must have been the bane of all existence in my previous life, or else I wouldn't have gotten this kind of luck." As Xue Mo kept laughing and rejoicing about the type of chance he had received, he didn't notice one thing.
He, the unfeeling guy with a stiff face that no one was able to change the expression of before, laughed and laughed so heartily at that. If anyone who knew him saw him do that, they would doubt whether it's the same Xue Mo.
He was called the Sage Of Nightmares because of his cruel methods that knew no bounds, and the way he did it without ever having a change in his expression.
When Xue Mo was done laughing, he returned to contemplate his situation. "Hmm, it seems that I gained something good here. Wishing for anything, and without receiving backlash from it, it is indeed good, but currently, I don't need it."
If anyone had heard Xue Mo speak this bullshit, they would have done anything to dissipate his soul into nothingness. After all, who really didn't have anything to wish for? It would probably be only Xue Mo who can spout this nonsense without batting an eye.
As Xue Mo returned to contemplate about his new soul's powers, he started rummaging through his soul, trying to see what exactly has changed other than it's purity and form. He wanted to know what this abnormal soul could offer him in his path of cultivation, as it is the only thing he really cared about.
"Oh." After thoroughly searching his soul and finding out that he could only see and discover his other abilities as he unlocks the seals, he made one further exciting discovery. Becoming an abomination of a soul seemed to have severed the connection he had to his identity as a human being. This pleased him considerably.
After all, he never liked humans or anything to do with them. He didn't like associating with them. So for him to become something else is the greatest gift he had gotten from this ordeal- or that's his opinion at least.
Now that he could become anything he wanted, Xue Mo started thinking of the characteristics that he wanted to see in his race.
Although he might not seem like it, he liked to be a perfectionist for some critical stuff. And creating his new race and body needed some serious thinking- he couldn't mess it up or change it as it would become the new him. So he didn't want to miss anything that he might regret down the line.
The good thing is that he knew almost everything about other species and races. As he never liked human beings, he researched other creatures in his spare time, in hopes to remove his human bonds. He used every extra minute he had on that, other than the time for cultivating, contemplating his Dao, studying blacksmithing and pill concoction, and training his martial techniques. Through this, he gained an extensive array of knowledge that had been imprinted on his very soul. And he could use that information to create the best race ever created-by taking all the advantages of the other races and their innate abilities, and combining them.