Originally Posted by
ForteNightshade
Which segues nicely into why Blue Mage is, indeed, overpowered. It isn't good at one singular thing. It can adapt to everything. If you watch Blue Mage vids on yotube clearing O12S, they Diamond Back every major mechanic. This completely negates what is otherwise the hardest part of Final Omega. White Wind renders any intense healing phase a joke because a DPS can become a superior healer. It's the equivalent of giving Dragoon Medica on steroids. Sure, it's a DPS loss but at 50% or higher, it's a full heal for the entire party. Simply having two Blue Mages rotating that will trivialize practically any fight.
Even if a Black Mage could, theoretically out DPS Blue Mage. It can't survive any level 70 content on its own whereas Blue Mage can even without Basic Instinct. Allowing Blue Mage into parties as a regular job, makes undeniably the best DPS out of sheer versatility.