Previously the Element 4 was a group of four S-Class Mages who were the most strongest in the Phantom Lord Guild. However was there ever a ranking/official ranking in terms of who was stronger?
The only information I can gather is the Aria was the strongest out of the Element 4. Was there any information that gave insight into the ranking on strength? It may have been already revealed in the anime, however I have forgotten if it was mentioned.
Answers are appreciated. :)