Update 1.1 - Power Scale
Power Scale
(E) - Early Stage (M) - Middle Stage (L)- Late Stage
1. Starter (E) (Human)
2. Starter (M) (Human)
3. Normal (E) (Beast) and Starter (L) (Human)
4. Proficient (E) (Human)
5. Middle Stage (Human)
6. Normal (M) (Beast) and Proficient (L) (Human)
7. Senior (E) (Human)
8. Senior M (Human)
9. Normal (L) (Beast) and Senior (L) (Human)
10. Enhanced (Beast)
11. Expert (Human)
12. Monster (Beast)
13. Crown (Human)
14. King (Beast) and Elite (Human)
15. Disaster (Beast) and Champion (Human)
16. Legendary?
Just a reminder. The strength of each level is closed... For example: Normal (E) was higher than Starter (E) and (M), but it doesn't mean that they cannot be killed, If the Starter (E) and (M) use Team Fight, Despicable Method, or Sneak Attack, then the Normal Beast (E) was helpless. Normal (E) and Starter (L) was equal in strength but actually Starter (L) had a small advantage.
Same scenario to Normal (M) and Proficient (L), Normal (L), and Senior (L). Enhanced Beast had a gap over Senior (L), it's nearly impossible to defeat it alone. If it's 1v2, Senior (L) still cannot defeat it, but they can stall time or escape with a teamwork ability. If it's 3 vi, Senior (L) Might have a chance to defeat or stalemate it. If it is Senior (E) and (M), you might need 5-10 people to defeat it.
Of course, Super Genius like Tristan and other geniuses was an exception because they can kill it alone.
Expert Stage had a small advantage over Enhanced Beast, Expert will take a long time to defeat it and they will suffer a bit after the fight. But if Expert Stage fought 2 Enhanced Beast, there's still a chance to stalemate the fight, and it takes a long time. If it's 3 Enhanced Beasts, Expert needs to escape. If it is more than 4, the Expert will certainly suffer or die.
Same Scenario as Crown and Monster.
As for the Elite Level. If Elite fought the Champion, of course, Elite will lose... If 2 Elites fought the Champion, they might delay it a long time, there's a low chance they will stalemate the Champion, But there's a high chance they will still lose. If it is 3 Elite against Champion, they might stalemate it or even defeat it.
Weekly Power Status
-- Power
Ranking 
-- Power
stone