Type: General, Fighter
Source: Player's Handbook II
You can hatter foes senseless with your mace, morningstar, quarterstaff, or flail. Few victims are willing to stand toe-to-toe with a warrior known for knocking his foes witless with a single strike.
Prerequisite: Str 13, Power Attack, base attack bonus +6.
Benefit: If you use your Power Attack feat to increase your damage with a bludgeoning weapon, you can attempt a brutal strike. You must declare your intention before making your attack. If the attack hits and your opponent takes damage, he must make a Fortitude save (DC 10 + your extra damage from the Power Attack feat on the attack) or be sickened for 1 round.
You can use this feat once per round during your attack action.
Special: This feat cannot be used against a creature that is not subject to extra damage from critical hits.
A fighter can select Brutal Strike as one of his fighter bonus feats.