Magic Weapon Abilities - Passage
Once per day, a passage weapon can slice open a portal into the Spirit World. This works as the plane shift spell, but creates a portal that remains open for 1d4 minutes and then closes. Any creature can pass through the portal, in either direction, while it is open, but once it closes it cannot be opened again.
Caster Level: 15th
Requirements: Craft Magic Arms and Armor, plane shift
Price: +32,400 gp.