Wereboar's Ferocity (3.5e Maneuver)

You won't die, even if they kill you!

This maneuver may be used in two ways. If you drop below 0 hp and are dying (but not dead) you may initiate this maneuver to continue to fight as if you were not dying. You gain 2 temporary hp per initiator level, DR/- equal to 1/3rd your initiator level (minimum 1), and +2 to attack and damage rolls for 1 minute, or until your hit points rise above 0 hp (not including the temporary hp). After one minute the bonuses and temporary hit points vanish, which may kill you.

Alternatively if you are struck by an attack that would kill you, you may initiate this maneuver to get one final standard action. Once you take it, you die as normal if your hit points have not been restored.