Tomb-Born Fortitude

 
Prerequisite(s): Tomb Tainted Soul, Non Good Alignment.
 
Benefit: You have a 25% chance to resist critical hits. When a critical hit or sneak attack is scored against you, there is a 25% chance that the critical hit or sneak attack is negated and damage is instead rolled normally. In addition, you do not risk death from massive damage. Your skin takes on the pallor and texture of a dead creature of your race.
 
Source: Libris Mortis: The Book of the Dead