Sword Saints weren't considered common in the world of Eich, nor was 'Sword Saint' an actual power level, but rather a glorious title.
An elf, a human, or a beastman could all become a Sword Saint. This glorious title wasn't limited to any single species or power level. The title of Sword Saint was given to those who had reached a certain level of expertise in martial arts. And, the symbol of being a Sword Saint was the ability to cast sword qi[1] as one pleased.
Eich was no mystical cultivation world where existences could send out energy waves according to their whim. All martial artists would have to start by cultivating their physical bodies as the foundation. The physical body could only be strengthened slowly, step by step. And, most individuals would never amount to anything but a slightly strong melee combat unit no matter how much they cultivated, unless they could utilize the power of the elements or had an excellent bloodline.
