Many spells and magic items are very easy to refluff as a power or ability that was learned through intense training, meditation, or something like that. But what about those spells that are VERY magical in nature and visually? Fireball, Lightning Bolt, Create Undead, etc.? How would you refluff them to be a martial ability?
(To be clear: I'm not trying to make them non-magical, mundane abilities. They all still will be Sp or Su, with a few rare Ex, but I'm trying to refluff them as martial, not spells.)