Built Tough (3.5e Feat)
From D&D Wiki
Built Tough [Honing]
Your superhero can take it as much as he can dish it out.
Prerequisite: Use of the Super or Sinister supplemental mechanic, BAB +5, Built Body
Benefit: Your superhero, whether through training, mutation, or some such way, has become able to shake off all or some of an attack. The character receives a damage reduction of 5/-
Normal: A character would normally not be able to shake off or ignore the damage.