Your rage pushes your ability to regenerate beyond its normal limits.
Benefit(s): While you are raging, fire and acid damage don’t make your regeneration stop functioning on the round following the attack, and instead reduce the number of hit points regained by regeneration each round by 2 until the end of your next turn.
Normal: Acid and fire damage cause your regeneration to stop functioning on the round following the attack.
Pathfinder Roleplaying Game Monster Codex © 2014, Paizo Inc.; Authors: Dennis Baker, Jesse Benner, Logan Bonner, Jason Bulmahn, Ross Byers, John Compton, Robert N. Emerson, Jonathan H. Keith, Dale C. McCoy, Jr., Mark Moreland, Tom Phillips, Stephen Radney-MacFarland, Sean K Reynolds, Thomas M. Reid, Patrick Renie, Mark Seifter, Tork Shaw, Neil Spicer, Owen K.C. Stephens, and Russ Taylor.