The southern bladesnake is an aggressive snake variant originating in the deserts of Yerht.

Most notable for their regenerative serum, bladesnakes intentionally sever the tails of their young and hold scavenged knives or other metal trinkets against the newborn's wound. Wounded bladesnakes secrete a natural healant that bonds their biostructure with the foreign objects, resulting in snakes that grow up with, for example, a knife for a tail. Despite their name, bladesnakes aren't typically aggressive and often bond with other metal objects, like spoons, pipes, and ancient debris and then learn to use their tails as specialized tools within their community.