When a slope or wall cannot be climbed, this projectile creates an easier path.
Wondrous Item 1,800 gp
Utility Power Encounter (Standard Action)
Requirement: You must be wielding a bow or a crossbow.
Effect: You fire this projectile from your bow or crossbow at a target within normal range that you can see, either at a wall, ceiling, or similar surface or at a sufficiently heavy unattended object, such as a large statue. A magic rope then trails out behind the projectile, connecting the point of impact to your position. The rope can support up to 500 pounds at one time. The rope remains in place until the end of the encounter or until you dismiss it as a minor action. If fired at a creature, the projectile deals no damage.
Published in Mordenkainen's Magnificent Emporium, page(s) 81.