SRD:Great Dislocator

Great Dislocator: The wielder of this kind of weapon can attempt to greatly dislocate a designated foe up to three times per day. On a successful hit, the foe must succeed on a DC 20 Will save or be cast into a random alternate plane of existence. If the weapon misses, the use is wasted. Bows, crossbows, and slings bestow this ability upon their ammunition.

Strong psychoportation; ML 12th; Craft Psionic Arms and Armor, psionic plane shift; Price +4 bonus.