Across the various planes of the heavens, immortal artifacts are divided into different tiers. The higher the tier, the greater the chasm in power between them, even if they differ by only a single grade.
Take King-grade immortal artifacts, for instance—they are far from being a match for Emperor-grade immortal artifacts.
The gap between the two is far more exaggerated than the difference between monarch-grade and King-grade immortal artifacts.
Chapter 2995