I'm calling tank for it, personally. Melee, check. Black magic for AoE aggro, check. White magic for defensive cooldowns/healing, check. It's the simplest way to cover the three things RDMs usually do in Final Fantasy games. A support DPS could work too, though (the game's first melee one, most likely), especially if they expand Bard Songs/Turrets to incorporate things like health regen.
