You are skilled at sending your opponents to the ground.
Types:
Combat Feats
Improved Trip
Prerequisite: Int 13, Combat Expertise.
Benefit: You do not provoke an attack of opportunity when performing a trip combat maneuver. In addition, you receive a +2 bonus on checks made to trip a foe. You also receive a +2 bonus to your Combat Maneuver Defense whenever an opponent tries to trip you.
Normal: You provoke an attack of opportunity when performing a trip combat maneuver.