Yessen makes a very good point. Learning White Magic is not impossible, as one RPer mentioned to me a while back, one would imagine after the Seventh Umbral Calamity the need for White Magi to heal the land increased, forcing the Padjal to teach non-Padjal. Of course this is debatable but it is also reasonable to assume with the damage Bahamut did to Eorzea and certainly it's Elemental denizens. The "Amdapori Way" as I call it (nefarious White Magic) is, as Yssen mentioned theorycrafting at best, though the logic could be drawn from other inspiration sources. I like to consider White Magi as Shamans, so, what about a Dark Shaman-esque archetype (Warcraft reference)? It can be speculated rather than working with the Elementals, you could force your will upon them and drain aether without consent from nature to fuel your spells (Similar to Defilers from Dungeons and Dragons: Dark Sun.)
That's strictly theory though and someone could either agree or rebuttal the idea. If you want to RP a White Mage, I say - do it, ultimately you pay the money for subscription to enjoy the game, and if you can forge a realistic reason for encountering White Magic (like the journey to GET said White Magic) then by all means: whip out those Holy and Assize spells! Just be mindful of the IC ramifications of it, like Gridanians hating you, and perhaps even fanboys/fangirls wanting to follow in your footsteps.
That's strictly theory though and someone could either agree or rebuttal the idea. If you want to RP a White Mage, I say - do it, ultimately you pay the money for subscription to enjoy the game, and if you can forge a realistic reason for encountering White Magic (like the journey to GET said White Magic) then by all means: whip out those Holy and Assize spells! Just be mindful of the IC ramifications of it, like Gridanians hating you, and perhaps even fanboys/fangirls wanting to follow in your footsteps.
