Described as a "colourful" character by Lucina, Owain has a habit of speaking in an overly theatrical fashion that some people find tiresome to deal with. He is somewhat preoccupied with the idea of being a hero and seeks the fabled sword Missiletainn in his quest, unaware that it is not the Mystletainn, but just a normal sword. Always eager to engage others in duels, Owain attributes this to his sword hand craving battle, even though this is, in actuality, due to his desire to prove his mettle and improve his combat skills. He is also known to make innumerable references to past Fire Emblem game titles when naming weapons and moves, as he strongly believes that doing so imbues them with power that transforms them into sentient allies instead of mere tools. Many of his responsive outbursts also harken to many past Fire Emblem heroes.