When people die who have been corrupted by demonic sorcery, the Corruption that wrecked their bodies can linger on, turning into Shades. With both the bodies and souls of the original person gone, shades are nearly mindless clouds of Corruption that float silently above the spot where they died. They are normally invisible, but cast dark shadows in the presence of bright lights and they can be clearly seen as shapes of darkness if any light shines upon them in the presence of dust or smoke.
Walking through a shade drains a small part of the life force of living creatures and can start the spreading of Corruption over time. While most shades stand motionless in the spot of their death and don't seem to react to anything around them, some are aware of the presence of living beings nearby and attack when anything comes too close to them. While their insubstantial claws do not leave any physical injuries, being in prolonged contact with an attacking shade can quickly drain all the life energy of a living person and spread the Corruption through its body. People who survive the attack of a shade often show dark purple streaks on their skin that becomes ashen pale and cold, which will last for several days. Those who die will often leave behind a shade as well, joining those who killed them.