A fighter who builds an unwavering resolve is especially difficult to defeat in combat, able to resist attacks sent his way.
Combat Focus I, II, III, IV, V
You gain Endurance as a bonus feat.
Each time you gain the combat focus ability, you gain a +1 bonus to your Reflex and Will saves, your maximum hit point total is increased by 3, your massive damage threshold is increased by 2, and you increase the maximum number of negative hit points you can have before you are slain by 2.
In addition, you add the following feats to the list of feats you may select as a bonus feat: Toughness, Diehard, Tenacious Survivor, Undying, Never Surrender, Akasha-Imbued Body, Essence of the Immortal, and Stand Without Fear. You must meet the prerequisites of the selected feat as normal.