A Smoke Demon is a hideous, charred Demon wreathed in tendrils of smoke.
The creature's humanoid body is one of tough, lean muscle, but is so burnt, and its countenance so skeletal, that the creature looks more like like one of the Undead. Its flesh is also mottled with foul, suppurating welts and sores, further giving the appearance that its body has been ravaged by deep burning.
The smoke surrounding the Demon was blue in colour, and gave the creature an advantage. It would cost any adversaries fighting the creature a temporary skill point, as the Demon's opponent would have to struggle to fight through the noxious fumes.