Blowhard( Savage Species, p. 31)
You can blow targets over with your breath.
Power Attack (PH) , CON 20, Huge size,
As an attack action, you can use your breath to affect all creatures in a cone 5 feet in length per point of your Constitution bonus. Each creature in the area is affected as through struck by a wind effect (see Table 3-17: Wind Effects in the DUNGEONMASTER's Guide). The strength of the wind effect depends on your size category, as given on the table below. Size Category Wind Effect. Huge ---------- Strong. Gargantuan -- Severe. Colossal ------ Windstorm. If you have a breath weapon, you cannot use this feat and your breath weapon at the same time.