The two world gods didn't know what they were doing or the significance of their actions. It is already unprecedented that a king of law can see their laws and not go mad. How are they to know that this small king of law is also connected to a free-flowing supply of Cosmic energy and that by exposing him to their supreme laws, they are adding kindling to the furnace within him? Their mistake is one that anyone can make.
If they knew his full situation then they wouldn't have shown Soverick their laws. They would have disregarded their competition to seize him just for the cosmic energy that he has. They didn't know so they felt they were playing with him.
Soverick on the hand didn't bother to enlighten them about this mistake. His encounter with their law of order was not by chance. He knew what he was looking for right from the start. That's the most important reason why he attended the competition even though he feared for his life.
The more Soverick comprehended of their law, the more the cosmic energy within every Legion was stimulated. Whatever he knows is known by every one of them after all. They finally got what they needed to make cosmic energy move.
In a normal situation, when a person comprehends a law to a certain extent, cosmic energy is bestowed on to them to create an Authority over that law within their origin. But this situation isn't normal. Soverick and all of Legion were not comprehending some ordinary law of the universe. They were not comprehending a concept either. They were comprehending a supreme law, a fabricated law of order created through the fusion of many other concepts. It was a law that could contend with the law of order of the universe and hence, it can invoke cosmic energy.
Legion-7 had been using cosmic energy before to sustain himself in the void universe since he is not supposed to exist in the physical part of the void universe. A law devourer is an abomination that even the void universe abhors. The addition of a supreme law made Legion-7 become independent of the void universe like a world god.
He was infused with more cosmic energy as they comprehended the supreme laws of order. The changes to him were rapid and uncontrollable. They initially caused him to mutate wildly. That's why the lady that wanted to control Soverick's consciousness saw a deformed entity in his consciousness.
He was able to finish his evolution when Soverick v1 died by swallowing the law of order of the serpentine world god and Soverick's deformed existence. All the infusion of cosmic energy into him at that point enabled him to evolve once and far all despite the danger of consuming a small part of the body of a world god.
Aeternus and Legion-1 also went through their own changes. Most of the other clones didn't. But that isn't the end to the use of supreme laws. The stimulation of cosmic energy ended when Soverick stopped getting access to the Supreme laws but Legion now knows how to actively manipulate cosmic energy on their own. The knowledge that they have cannot be taken away from them.
They know now what they need to have to fully utilize cosmic energy so they know what to aim for. Cosmic energy is powerful so it needs something very powerful to manipulate and give it direction. It needs a supreme law. It could be the law of order of the void universe, a false law of order of a world god, or the law of Chaos of the abyss.
Supreme laws can only be acquired from world gods or Legion can make theirs but it is a long way to go. What they can achieve in a relatively short time is the law of order and the law of Chaos. It is a relatively short time when compared to the time it will need for them to acquire a supreme law of their own.
The law of order of the universe is arguably the most powerful law of the universe. It is a difficult and complicated power that is powerful enough to nullify other laws. So it is going to take at least one origin cycle to comprehend it even with all of them actively using all their mental prowess to assist Helios.
The law of Chaos is also just as powerful. It is capable of scrambling the other laws. It is also much more difficult to comprehend than the law of order. The law of Order has a pattern to it. The pattern is very complicated. The complex patterns are more complicated than some supreme laws and the complexity of the world spark. But at least it has recognizable patterns. The law of Chaos on the other hand might as well be infinite randomliness.
The two laws are very rare and difficult to encounter. It was after they attempted to comprehend it that Legion finally understood why the realm lord was very interested in the Chaos energy that Aeternus possessed. It is impossible to learn the law of Chaos without it. They are opportune to learn the law of Chaos so they won't complain about its difficulty.
Helios is the only one that can comprehend the law of Order and Aeternus is the only one that can comprehend the law of Chaos. They have been making progress despite it being really slow progress. So Legion has turned its attention to something that can strengthen them in the short term. It is also something that will be with them forever.
They want a power that will belong to them. It will be a power that can't be taken away from them. The best source of that power is the shard of power that they possess. Soverick managed to do powerful things with it but he always received a backlash.
So Legion has to create an artifact that can reduce that backlash and enable them to use the shard of power more frequently. It will be a stop gap until they become world gods and are capable of controlling the shards of power completely.