Anchoring (Greater)

This rune prevents enemies from escaping your grasp by Fleeing to other planes.

When you critically hit a target with a weapon with the anchoring rune, the weapon casts 8th-rank Planar Tether on the target (DC 38 Will, counteract modifier +28), except that if the target critically succeeds at its Will save, instead of having no effect, the dimensional anchor lasts for 1 round. When you hit a target with the weapon but don't critically hit, the target is affected by 4th-rank dimensional anchor for 1 round without a save (this still uses a counteract modifier of +28).