ARTERIAL STRIKE [Rogue]

Your sneak attacks target large blood vessels, leaving wounds that cause massive blood loss.
Prerequite: BAB +4, Sneak Attack class ability.
Benefit: If you hit with a successful sneak attack, you may choose to forgo +1d6 points of extra sneak attack damage to deliver a wound that won’t stop bleeding.  Each wound so inflicted does an additional 1 point of damage per round.  Wounds from multiple arterial strikes result in cumulative blood loss -- that is, two successful arterial strikes do an additional 2 points of damage per round.  Blood loss, whether from one such wound or several, stops when the victim receives one successful Heal check (DC 15), any cure spell, or any other form of magical healing.  Creatures not subject to sneak attacks are immune to this effect.

     You may only forgo +1d6 for 1 point of bleed damage.  You may not sacrifice any more sneak attack damage for additional bleed damage.