You can make a trip attack with your quarterstaff.
Prerequisites: Int 13, Combat Expertise, Improved Trip, Weapon Focus (quarterstaff ), base attack bonus +6.
Benefit: You treat quarterstaves as if they had the trip special feature.
Special: If you are a magus with the staff magus archetype, you can use spellstrike on any trip combat maneuver you make with the staff.
Section 15: Copyright Notice
Pathfinder Roleplaying Game Ultimate Magic. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.