Grand Sage Mex
According to Questo, he was ranked one of the strongest mages among the kingdoms and it was also why Ress was in a position where kingdoms could not saunter in and invade Ress. They might not have the military might like certain kingdoms but their mages were capable of killing hundreds easily.
And while normal mages can take on ten or maybe hundreds on their own, Grand Sage Mex would be able to do so in the thousands and had earned quite a few accolades on his own. It was rumoured that he should be able to take down a Demon Lord on his own because of his reputation but there were no instances of it happening.
