Aside from Elementals, there was another force called Aura; a power that originated from our souls. Despite the fact that most living beings have souls, not many could use them.
However, in the past, a Swordsman managed to wield the power of Aura and due to how formidable he was on the battlefield, people named him a Sword Master.
As time passed by, to be able to exert Aura was now a mandatory requirement to attaining the highest title of Swordsman, a Sword Master.
It was never easy to manifest Aura, a lot harder than becoming an Elementalist since it requires high feats of harmony between willpower, mental strength, and Mana.
Commensurate with the difficulty level to be able to utilize Aura, users of this power were granted other abilities such as increased awareness, speed, and strength.
Although it seemed no different from the Enhancement method, coating yourself with Aura was much stronger than covering your body with Mana.