Greater Trip (Combat)
You can make free attacks on foes that you knock down.
Benefit: You receive a +2 bonus on checks made to trip a foe. This bonus stacks with the bonus granted by Improved Trip. Whenever you successfully trip an opponent, that opponent provokes attacks of opportunity.
Normal: Creatures do not provoke attacks of opportunity from being tripped.
Endzeitgeist Says: Another teamwork feat is disguise! You trip the enemy, he falls, and your allies can immediately pile on the poor sod.