In the Dungeons & Dragons game, nerras are the rulers of the Plane of Mirrors. These mysterious outsiders constantly observe the Material Plane, occasionally making forays to kidnap its inhabitants. They are known to wander the planes on missions of reconnaissance and infiltration for a theoretical future invasion. Nerras resemble humanoids with mirrorlike skin. When killed, nerras shatter into thousands of shards. Nerras wield weapons made out of the mirrolike substance of their home plane.