Even if you suffer a grievous wound, you can shrug off the damage and continue your relentless assault.
Benefit: When you are at 0 or fewer hit points, you do not lose 1 hit point when you take an action.
Pathfinder Roleplaying Game Ultimate Combat. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.