The Justice Squad.
Unfortunately, Legion-1 didn't succeed. The artifact he tried to build was far from perfect. It could only transfer energy and not matter. But then Soverick saw it being used for the competition. At that point, the artifact had been upgraded with a matter-to-energy converter and was being tested.
The pillar had become more powerful and intricate which was why Soverick sat in front of it to analyze it. There was so much for Legion to learn from it. It could not transform entities that were titans of law and above but it made Legion realize that the realm lord was making swift progress in the preparation for the era of conquest.
The loss of the title and the upcoming era of conquest made Legion-5 decide to build an artifact that would replace the title of the child of the plane that was taken from them. This artifact will empower all of them and not just Soverick.