In the Sky Martial Star, Ninth-Grade Treasure Artifacts were the lowest level, and they were the easiest to make. One simply needed to polish the bones of ferocious beasts to form special textures, activating the power within to enhance the Martial Artist's physical strength.
But starting from Eighth-Grade Treasure Artifacts, things weren't so easy.
First, an Artifact Embryo needed to be forged, and then the inner core had to be embedded. The quality of a Treasure Artifact depended on the material grade of the Artifact Embryo and the forging skills, as well as the quality and quantity of inner cores. Each aspect was crucial.
Simply put, the more inner cores embedded, the greater the power.
The limit for Eighth-Grade Treasure Artifacts was three holes, but this required high standards for both materials and forging techniques. Generally, one hole was the norm, two holes were rare, and three-hole artifacts were extremely rare.
Two three-hole Treasure Artifacts.