"However, when it comes to fusing with a complete Moon Forbidden Artifact, the difficulty is directly related to the grade of the Forbidden Artifact Fragment you've already integrated.
You are aware of this, I presume?"
The grades of Forbidden Artifact Fragments fused at the Zombie God Realm are divided into four tiers based on their degree of completeness: Upper, Middle, and Lower Grades, plus Top Grade.
The lowest is the Lower Grade Forbidden Artifact Fragment, which means it is the most incomplete.
And the Top Grade Forbidden Artifact Fragment is the most complete, with the fewest missing parts.
Yang An understood this point after hearing Forbidden Calamity's explanation and nodded.
