Quote Originally Posted by Phoenicia View Post
So much math, but you forgot the most important component.... No..... Weapon..... Damage...... It is the absolute most important stat in the game and BLU doesn't have it.

So even if you had 380 potency like the BLM's Fire spells, you have 1 weapon damage. Get on your BLM, and equip a level 1 weapon and cast fire, then equip a level 5 weapon and cast it again and see how big a difference that makes.
I'm not trying to be rude here, but its almost like you aren't aware that they adjusted the stats garnered from armor to make up for the lack of a main weapon, on top of having a 50% main and mend. So no, a level 5 black mage weapon would not be a good comparison. Not even close. But without actually knowing the coefficients we can't make a good comparison.