Extraplanar

Extraplanar refers to a monster subtype applied to any creature when it is on a plane other than its native plane. A creature that travels the planes can gain or lose this subtype as it goes from plane to plane. Creatures not labeled as extraplanar are natives of the Material Plane of Eberron, and they gain the extraplanar subtype if they leave there.

In DDO, this monster type determines that if the creature is vulnerable to Banishing, Dismissal, Banishment and such effect.

Extraplanar creatures include:
 * Mephits
 * Demons: Flesh Renders, Ice Flensers, Fire Reavers
 * Devils
 * Celestials: Eladrin, Archon
 * Elementals
 * Fiendish Trolls, Gnolls, and Troglodytes
 * Yourself as a player character, when venturing in Amrath. Only the Boots of Anchoring make you immune.