But even with the Pseudo-Domain of Necrotic Energy, Hela wasn't entirely confident against someone like the Abyss Emperor because no matter how long they have fought, it didn't change the fact that the Abyss Emperor didn't use his strongest trump card even once.
Or at least it was the trump card that Hela suspected he had and those were the Soul-Based Attacks. Right now, they were only combatting purely through the flesh, with some mastery over the art of sword and some flashy, nice energy-based attacks, but that was it.
Nobody was using their strongest cards yet because there was no time for that until the Pseudo-Domain was completed, which was the moment when Abyss Emperor realized that if the fight dragged for too long, he would be at a severe disadvantage.
So, in a split of a moment, Hela sensed that his power had skyrocketed several times over as the entire Pure Land started shaking and vibrating like it was answering to the call of its master.
This gave the Black Empress of Death an idea that perhaps the Pure Land of the Abyss of Nothingness had some form of rudimentary intelligence, which would increase the danger of this place several times over and over.
Immediately, all of her senses screamed danger at her, when the Abyss Emperor released some kind of invisible energy wave towards her.
Instantly, she felt that her Soul Protection Artifact had worked well when it stopped the first wave of the attack, but it wasn't the end.
Meanwhile, she was defending against the attack; the Abyss Emperor started morphing into his different form, as the power he was wielding was increasing at a tremendous rate and speed, something unseen during the battle before.
But to Hela's discerning eyes, she could see that this wasn't some kind of forbidden technique or power-up for a short-term power or borrowed power...
No, this was basically returning to the origin and to the original power that the Abyss Emperor wielded.
She realized this entire fact when Hela noticed that the fog that was surrounded the entirety of the Abyss of Nothingness disappeared and started congregating here, within the Pure Land, and instantly afterward, it was being assimilated by the Abyss Emperor.
'So he was the source of the fog within the Abyss of Nothingness... and it was highly possible that he was breeding the cultivators within the place for some sort of sacrifice, considering the fact that the fog has exceptional Life Force devouring capabilities.'
Hela thought as he raised her Necroswords that were filming with the Necrotic Energy even in a more intense way than before because she was using an entirely different method of handling the Necrotic Energy.
She had cultivated her Godhood in a pretty specific way, in a method of dealing the damage even to the Soul Lifeforms, as she was the ruler of the aspect of Death. Like her beloved husband was the embodiment of the Aspect of Ruination, she was the embodiment of the Aspect of Death.
Like her husband, she also already touched on the Concept of Death, and Death was inevitably related to and interviewed with the Soul itself.
So, when she started using the power of the Aspect of Death from the Godhood Black Empress of Death, she cut through the invisible wave of energy released by the Abyss Emperor like she was cutting through the butter with a hot knife.
Noticing that the Abyss Emperor grew several more meters tall and now, he even had a far more demonic or fiendish appearance, with large leathery wings and a pair of horns sprouting from his head, but he still retained the human origin.
This led Hela to the conclusion that the Abyss Emperor was, in the past, a powerful human cultivator who used the method of refining the Fiends or Demons or other similar creatures to break the boundary between Tier 11 and Tier 12, which was one of the hardest to break through.
As part of the consequences, he must have succumbed to the influence of the Fiendish or Demomish origin from everything that he refined and probably changed his entire origin to an entirely new lifeform.
Such things happened to the cultivators pretty often if they were not cautious about what they were refining and from what.
Many of them then subsequently lost their sanity to the demonic elements, or some were even more unlucky, as they were possessed by some powerful Fiend or Demon who were using this method to gain a new body or slave.
The Abyss Emperor didn't seem that he was possessed, so he must be one of the rarer cases of those cultivators who performed the sacrificial cultivation properly and obtained the greater benefits.
Thought this one, the other hand, was making him even more dangerous than he initially was in Hela's eyes. Yet, at the same time, she grinned happily, almost delightfully, because this was the thing that she desired.
Faster than anyone could blink, she released all of the limiters that were on her person and appeared in front of the already "unsealed" Abyss Emperor, who completely finished the transformation into his full-power mode.
Upon the clash of their swords, the entire Pure Land erupted into the form of greenish-black flames that were everywhere and were burning down everything that the eye could see, though surprisingly, they were not destroying the Pure Land itself.
Something like the Pure Land won't be destroyed by someone with Tier 12 power, no matter how powerful the Tier 12 entity was. In the end, the Pure Land contained a great deal of the very own essence of the Primal Chaos Dimension Universe.
For that reason, neither Hela nor the Abyss Emperor refrained from using their full power at the place, and when Hela used her full power, it was a spectacle to see. And this wasn't her all-out, because she wasn't using the power-up formations of her Astral Necrotic Undead.
Just now, the true duel to death between two pinnacle Tier 12 powerhouses began.