Azura is strong as she can fight in close quarters combat and at long range. She is tactical as well as being rather quick. Ultimately this would be enough to defeat many fighters but not Slur. Slur went one on one against Bass which is a feat so insane that many would not be able to comprehend even attempting to do such a thing. Slur has the massive advantage in all stats and could possibly win this in a single move. Slur wins.