He could punch and attack all day since his unlimited stamina can allow him to, but he won't be able to harm Fitalo unless he uses an aid like a weapon. Even then, the weapon has to be of very high quality to bridge the gap between 69 and 24. This is why demons lower on the hierarchy find it almost impossible to beat their superiors.
The demon Hierarchy has been set before the arrival of the realm lord but his concept of power rating explained why 100 low-rank demons cannot punch a mid-rank demon to death. The quality brought about to the state of existence through evolution trumps the quantity brought about by stats.
He began testing his chaotic power on Fitalo instead, since his fist wasn't working. He created a clump of dark fire in his hands and threw it at his opponent. Fitalo was starting to get up and was doing it leisurely.
There's no rush for him since a low-rank demon can't do anything to harm him. Then the flames attached to his body and he jumped up in a hurry.
"What have you done to me?" He cried as he tried to smother the flames but his hands caught on dark fire.
His attempts to use the ground to snuff it out failed too. The chaos flames spread slowly and surely, Inexhaustible and unquenchable while poor Fitalo screamed in pain way worse than that of almost smashed nuts.
The flames only stopped when they finished burning the demon to ashes. Some sort of energy entered Aeternus' body. It all went into his mark of sin on his soul and he could feel it grow a little. His stats also improved.
He dusted his hands again and shook his head, "Disappointing."
The fight had been dull. Fighting usually involves leveraging your resources against your opponents. Fitalo stood no chance against him whatsoever so there was no use for techniques or fighting proficiency. Aeternus had been able to bring him down easily with his chaos flames.
The other unique thing is that even with his own prodigious fighting proficiency, he still couldn't hurt the helpless fitalo with physical damage. He had been able to poke Fitalo's eyes and really hurt his balls but he didn't have the physical resources needed to damage the demon beyond that. That's why he switched to his chaotic power.
"We'll see how fighting proficiency and weapon mastery fits into this way of fighting." He said with anticipation.
Could the realm lord's concept hold in every situation? Probably yes. Aeternus doesn't have the intention to disprove the theory of power rating. But he wants to see how far it can be stretched and what it even accounts for. Learning new things is pleasant because it is not only for himself but for Legion too.
The fight may have been dull but it was enlightening to an extent. It showed that no matter how skillful he is if he doesn't have the strength to deal damage then he will be helpless in a fight. Therefore he has to consider his limits and his strengths when fighting and when choosing an opponent.
He considered his plans for a while before continuing forward toward the territory of high-rank demons. He doesn't plan to enter the domain of high-rank demons yet. But the closer he gets to it, the stronger mid-rank demons he will face.
Fledglings have the power of a vitality core refiner at most. Their soul is fragmented and their sin mark is unformed. They are irrational, unintelligent, and chaotic. They follow their basal Instincts. Intelligence starts to show up among low-rank demons. They have a complete soul and the ability to learn. They also have the power of mana entities. But they are still chaotic.
They will learn over time and become intelligent by the time they become mid-rank demons. They acquire the power of transcendents at this point. This is also the stage where the concept of tactics and strategies begins to form.
So by the time they become High-rank demons, they would have mastered tactics, strategies, and trickery. These are important qualities a demon should have if they are to lead invasions into worlds. Their power has also reached the level of a Lord of law.
Aeternus can defeat a mid-rank demon because of his chaotic power and only that. When a demon evolves into a mid-rank, its mark of sin grants them an ability that depends on the type of sin and the true name of the demon. Fitalo's ability is the strength of wrath. An active ability that needs him to be angry and consumes sin energy to give him a slight boost in strength.
The sin ability is the only ability that mid-rank demons have. Some special mid-rank demons will also have the power of spells, unlike Fitalo with his pitiful amount of mana. All in all, a normal mid-rank demon has a power rating between 57-81. Sin abilities increase it and spell power can make them close to Aeternus in strength.
He can still handle that. But he won't be able to handle more than that. A high-rank demon will surely have a lot of spells. They will outrank him physically and magically. It will be certain death to fight a high-rank demon no matter how skillful he is. Having set his limit, he chose to focus on his strength.
So he prowled the domain of the mid-rank demons, fighting and fighting. At first, he fought unarmed using the numerous fighting skills and mastery that Soverick had acquired for Legion. Things increased in difficulty the more he went deeper. Some demons started using refined weapons instead of crude objects.
The demon he is currently fighting is wielding something similar to a sword. It is some metal that has been heated and beaten into the shape and form of a sword. It has a rough surface and chipped uneven edges. It is crude looking, to say the least. It may not be a good sword, but it is an upgrade over a club. The only thing worse than the sword is its user.