Cometary Collision

 
Prerequisite(s): Str 13+, Improved Bullrush, Power Attack
 
Benefit: You can ready a standard action to use this feat when an opponent charges you or any other target. At any point during your opponents charge, you can charge him. In place of the normal charge benefits, you gain +2 on your attack roll and +4 on your damage roll. Your foe loses the benefits of charging but not the penalties but can still attack you. If the target charged someone else, he can choose to attack you instead. You take the standard -2 to AC for your charge. If you cannot move at least 10' or cannot charge due to terrain conditions, you do not gain the benefits from this feat. In either case, you can use your readied action to move but not to attack.
 
Source: Players Handbook II