This data is not considered low anymore.
Perfect spiritual artifacts are very difficult to mass produce stably.
It's because spirit rune arrays above Tier Five often encounter various unstable situations during the drawing process.
The instability is not due to quality issues, but because of the excessive complexity, leading to the manifestation of the various idealistic properties of spirit patterns.
The harmony of time, place, and people, the status of materials, and even intangible things like luck and feng shui can affect the quality of its output.
The emergence of high-star perfect spiritual artifacts above Six-Star may even attract various forms of celestial tribulations as obstacles.
People in the past believed it was a calamity descended by Blue Star's Heavenly Dao, not allowing overly perfect things to exist.
