By the class's name and description, Light Mages appear to be extremely rare, and differ from Monks or Bishops in that they are not affiliated with the clergy, opting to study and employ their magic toward different ends. This, however, doesn't seem to exempt Micaiah from faithfully chanting for the Goddess's intervention while preparing her spells.
Micaiah promotes into a Light Sage after being officially named the captain of Daein's army at the end of the Endgame of Part 1.
Being a magic user, Micaiah is at an advantage against several enemies, as a lot of early-game enemies have low Resistance. Her unique spell, Thani, inflicts triple damage on armored and cavalry units, but will be more potent against armored units than the Rapier. However, there are a few issues with this class. Being a mage, it has low HP and Defense growths, ensuring Micaiah must be kept behind the front lines. In addition, her Speed growth is somewhat low, hindering a double attack. This is not always overcome on promotion, but neglecting the use of the Light Mage hinders you, as Micaiah has forced promotions regardless of level. However, be assured that her Resistance, Luck, and Magic are high, and her Skill is good.