Tripping Rush
You bull rush opponents into obstacles that knock them down.
Preqrequisite
Improved Combat Maneuver (trip), base attack bonus +5
Benefit
When you succeed at a bull rush combat maneuver and the target’s movement is stopped by an obstacle, the target falls prone (or becomes off-kilter in zero gravity).
Source
Character Operations Manual pg. 119
Dragonscript
ID
b15e76fe5d5b3afebda46bf3Preqrequisite
and [condition character.bab.featPrerequisite >= 5, {character.feats contains '9400f755a09fde832ae236cc'}];
