Similar to the Recognise Creature skill, this Skill Category enables you to recognise many of the Extra-planer creatures, or EPC's, as they are commonly called, that you may encounter. All EPC's originate from other planes of existence. The table provided in the appendix section lists many of the recognisable extra-planer creatures that are commonly met whist adventuring and the level of proficiency you need to recognise them.
Any proficiency in this category enables you to make an educated guess as to whether a creature is an EPC or not. If you encounter a creatures not listed in the appendix, it could be a Creature, Enchanted creature or Undead, but if it is not, as with the Recognise Creature skill, it’s a rare and unusual type of extra-planer creature. In this case, you will be informed that it is a "Extra-planer Creature Unknown". After a number of such sightings by characters with the sufficient Skill level, it will be classed as a "Creature under Research" and within six months of real time it will be added to the list of creatures recognisable with this Skill Category. If you can identify an EPC, but are unable to determine exactly what it is, you will be provided with the group that the EPC best falls into, Some examples are as follows;
Elemental Elemental Knights, Elemental Imps or other creatures made of pure elemental force.
Imp Snuffit, Droppit, Blindit and other annoying gremlins.
Demon Teleport demon, Succubus, Demonic soldiers and the like.
Humanoid Doomguard, Githyanki, and other humanish looking creatures.