A mul (pronounced: mül) is an incredibly tough crossbreed of a human and dwarf. They retain the height and cunning of their human parent, plus the durability and raw strength of their dwarven heritage. Muls are usually the products of the slave pits-owners recognize the muls' assets as gladiators and laborers, and so order the births of as many muls as can be managed within the ranks of their slaves. Muls are born sterile - they cannot perpetuate their kind.
A full-grown mul stands 6 to 6½ feet tall and weighs 240-300 pounds. They are fair skinned, sometimes tending toward a copperish coloration. Their dwarven ancestry gives them a well-muscled frame and an incredible constitution - mul laborers can perform heavy work for days at a time without stopping. Muls have stern facial features. They are unmistakably human in appearance, though their ears are swept back and slightly pointed. Most muls, whether male or female, have no hair or beard.
Born as they are to lives of slave labor, with the taskmaster's whip taking the place of parents and family, muls are given to a gruff personality and violent reactions. Understandably, many never seek friends or companionship but live out their lives in servitude, driven by hatred and spite. Most, however, learn who to trust in the slave pits and who not to, gaining favor and reputation among the other slaves. from link
Inspired by TSR's campaign setting of
Athas, the world of the Dark Sun. The world is more primitive and
more brutal than ordinary run of the mill medieval fantasy worlds,
thus requiring a hardier, more rugged form of life. Depicted is a Mul
gladiator, a crossbreed of a dwarf and a human. Bred for gladiator
combat, the mul inherited the dwarven characteristics of incredible
strength, stamina and grim ferocity as well as the taller and more
supple physique of humans. Muls are normally hairless and sterile.
Scanned pencil sketch.