Monk

Monks are 1st tier of class wielders of light magic. They generally use Lightning and Shine, but sometimes use more advanced tomes as well.

Light Mages are what replace monks in Fire Emblem:Radient Dawn. The only available Light Mage in the game is Micaiah.

Monks can upgrade into Bishops with the ability to use Staves as well as Light Magic and Micaiah can upgrade into a Light Sage and then a Light Priestess.