Upon casting this spell, the wizard deprives a creature with the ability to exist in multiple planes from using that ability for the duration of the spell, in effect "locking" the creature in the Prime Material Plane. The caster must have the creature in sight at the time of casting.
When subject to this spell, phase spiders and similar creatures are immediately put "in phase" and can be attacked normally. Blink dogs cannot blink and displacer beasts cannot use their displacement power. Xorn lose their invulnerable walk through solid objects and, if in a solid object, take 2d10 points of damage per round until they can free themselves.
Magical items that put individuals into the Ethereal Plane or open holes into pocket dimensions (such as a portable hole) will not function while this spell is in operation. Magic spells of 4th level or lower (such as rope trick or blink) will not function and, if already functioning, will cease to exist, bringing the individual back into the Prime Material Plane immediately. Spells of 5th level or higher that access other dimensions (such as phase door) function normally and are unaffected.
The creature or individual this spell is cast upon gains a saving throw vs. spell to avoid its effect. Creatures that phase through solid matter save at a -2, while those on the Astral Plane save at + 1.
The material component of this spell is a clear gem worth at least 50 gp; the gem is lost in casting.
Notes: Very rare spell from the Forgotten Realms setting. Known to be in Aubayreer's Workbook.