Dark creatures are native denizens of the Plane of Shadow, and generally have a dark gray or deep purple coloration.
This template can be applied only to a non-outsider that has none of the following subtypes: air, cold, earth, fire, or water. A dark creature’s CR increases by 1 only if the base creature has 5 or more HD.
Rebuild Rules: Senses gain darkvision 60 ft. and low-light vision; Defensive Abilities gains DR and resistance to cold and electricity based on its Hit Dice, as noted on the table below; SR gains SR equal to its new CR + 5.
In any illumination other than bright light, a dark creature blends into the shadows, giving it concealment (20% miss chance). If it already has concealment, the miss chance gained from concealment increases to 50% (though this does not count as total concealment). A dark creature can suspend or resume this ability as a free action.
Pathfinder Player Companion: Monster Summoner’s Handbook © 2015, Paizo Inc.; Authors: Alexander Augunas, Tyler Beck, Anthony Li, Luis Loza, David N. Ross, Owen K.C. Stephens, and Linda Zayas-Palmer.