Planar Pocket

Cast on a plane other than your home plane, this spell creates a small area around yourself that is, to all intents and purposes, your home plane. Within the area of the spell, you are not considered extraplanar and are thus not subject to banishment, dismissal, holy word, or similar spells. In addition, any elemental, energy, alignment, and magic traits of your home plane (see Manual of the Planes) apply within the spell's area of effect as well.
Range: 0 ft.
Clr 9, Sor 9, Wiz 9

From: Dragon #304