As a K4-Phantom, Adam was familiar with several types of artifacts. The common artifacts were those that the Phantoms could absorb to become stronger, or monsters that could become Essence Monsters.
External Artifacts were the next level beyond common artifacts. At this stage, the artifacts gained their own minds and personalities. They could make decisions and even become leaders in their territories.
Once upon a time, Lone Blaze was an External Artifact, but to survive, she had to enter into a contract with Adam and become his ally. For her, this worked out remarkably well.
However, if Lone Blaze had never encountered Adam and had had more favorable conditions for development, she might have become an Ancient Artifact in the future.
This was the next stage of development for External Artifacts such as Lone Blaze.
The Ancient Artifacts possessed immense power and could live for thousands of years, but even they sometimes faced catastrophes and perished.
