Cacaphonic Thump (3.5e Maneuver)

With a single big smack of your greatclub, you catch your opponent right in the chest, destroying their armor and their spellbook and knocking them backwards quite a distance.

Make a Sunder attempt against two objects carried or worn by the target. If you hit either one, the target must make a Fortitude save or be knocked backwards 20'. If the target saves, they are still knocked backwards 10'. (This is in addition to the damage to the object(s))