Any creature from another plane.
EPC Subtypes include:
Aberrations Unnatural creatures mutated far beyond original form
Celestial Outsiders from the Upper Planes
Chaotic Outsiders from the Chaotic Planes
Elemental Creatures composed of pure Elements
Fae Outsiders from the Fae Realm
Fiend Outsiders from the Lower Planes
Lawful Outsiders from the Lawful Planes
Monstrosity Magical Beasts, Chimeric Creatures etc
Outsider Outsiders from farther planes
(Extra-Planar) Template indicating native to another Prime material plane
Standard EPC Immunities
Focus Plane - No additional immunities
Elemental Plane - Immune to Sleep, Herbalism, Alchemy and Poison and Native Element
Chaotic, Evil, Good, Lawful Plane - Immune to Power Word Stun
Minor Level
Moderate Level
Major Level