Dimensional Maneuvers

Your rapid teleportation makes your combat maneuvers more difficult to avoid.

Prerequisite: Ability to use the abundant step class feature or cast dimension door, Dimensional Agility, Dimensional Assault, Dimensional Dervish, base attack bonus +9.

Benefit: While using the Dimensional Dervish feat, you gain a +4 bonus on combat maneuver checks to bull rush, disarm, reposition, or trip an opponent.

Source: Ultimate Combat