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The shadow demon is the essence of a demon imprisoned in the form of a shadow. Sages and scholars contend that a shadow demon is formed from a manes demon (q.v.), though the high intelligence of the shadow demon seems to put this theory in doubt. A shadow demon is not undead and therefore cannot be turned.
The shadow demon attacks his victims with its incorporeal bite. He can also merge its body with a creature on the Material Plane. During any conditions other than full daylight, a shadow demon can disappear into the shadows. They can pass through solid objects at will, and attacks pass through armor. They always moves silently but are powerless in natural sunlight and flee from it. A shadow demon caught in sunlight cannot attack and can take only partial actions.