1→ Low Grade 

2→ Mid Grade 

3→ High Grade

4→ Top Grade

5→ Supreme Grade

6→ Profound Grade

7→ Spirit Grade 

8→ Saint Grade

9→ Royal Grade

10→ Emperor Grade

11→ Void Grade 

12→ Heaven Grade 

13→ Celestial Grade 

14→ Divine Grade 

15→ Mythical Grade