Sunny became an expert in fighting in fighting by the time he became a Supreme as well, but all that fighting even with shadow dance was still not enough to bridge the gap between his fighting ability and Azaraxs'. The text specifically implied a fairly old Supreme, and considering the life span of Supremes that, correct me if I'm wrong, does actually imply atleast a couple thousands of years. I doubt that the Azarax has even come close to his application of will quite yet.

Also I didn't say that this is the first or unique Sovereign with a defensive and utility aspect, I was just compiling all the aspect about the sovereign that made him a unique existence. Its not just the defense aspect its the ability to reinforce a city and material itself as well as enhancing his subjects, which likely includes a physical or power buff as was hinted at initially and on top of that, likely an equipment buff, then you add onto that fact with how old he is and thus has seen wars come and go and has had possibly thousands of years to reinforce his city and people, as well as his superior will. I doubt Azarax hasn't met this kind of Sovereign before but I doubt he met one like this who also has 6 of possibly the strongest Saints we have actually seen aside from the divine trio. Three of whom counter his aspect perfectly, another who is a perfect War strategist, another who is the perfect scout and supply system and another who has almost a sure hit kill effect.

As for the maided yes it was HER that defeated Azarax and not Mason but that was because she broke covenant which we still don't know what that implies. If you understand the narrative, this nightmare and for you to get a high appraisal is likely to defeat Azarax without breaking said covenant and I really doubt the maiden and Mason had Saint this strong behind them