Hey Ultrabam, I didn't noticed before, but I think the grading system is a little tight, there should be a wider gap between the dorm, maybe something like this:
Omni Hero= 85/85
Elemental Hero= 74-84/85
Destiny Hero= 51-73/85
Evil Hero= 50 or below
I don't know if it would be ok like this, but I just got that feeling from seeing the elemental dorm with 79-84/85