Ghost Trap

(Spell Compendium, page 103, DnD 3.5)

Abjuration

Level: ; Cleric 6; Sorcerer/Wizard 7
Components: V, S
Casting Time: 1 standard action
Range: 5 ft. / level
Area: 5 ft. / level-radius emanation centered on you
Duration: 1 minute / level (D)
Saving Throw: None
Spell Resistance: No

Energy ripples outward from you, rendering solid the insubstantial.

You are surrounded by a field of energy that negates incorporeality. The radius of the field is 5 feet per caster level. All incorporeal creatures in this field become corporeal. Creatures cannot turn ethereal while in this area, and ethereal creatures cannot enter or affect the plane this spell was cast on while in this field.