Damage you deal causes wounds that bleed excessively.
Prerequisites: Combat Expertise, wounding special attack.
Benefit: When using an attack that has a wounding special ability, the wounds you cause bleed for an additional +1 point of damage each round. For instance, a hit from a barbazu’s glaive causes the victim to bleed for 3 points of damage each round, not 2.
Source: Savage Species, page 40. Changed Expertise in Prerequisites to Combat Expertise.