Dark Magic in the Bright Sun
Humans are the only civilized race that can claim to be from the surface of Lextor. They arose here from primitive roots. They have spread across the world, slowly increasing in population, knowledge, and power, magic and material. They are short-lived compared to their fellows but quick to learn, and driven to innovate and leave a mark in a world where learned sages of one thousand years and skilled smiths of five hundred live and work.
Their numbers are small compared to the older races, but their mechanical servants, innovation, flexibility and adaptability more than make up for that.
On the other side, humans are responsible for the scourge of orcs in the world, having been created by humans of a distant kingdom long ago. Dark magics and ancient evils still live and hide in the shadows of the world.