Man — Deathless Dusk
Some Men simply decide not to go down. You gain the Diehard feat, and can choose not to become unconscious when you fall below 0 HP. When this happens, you can set your HP to 1.
If you do: you become completely immune to damage, and gain immunity to fear, a reroll against any debilitating or movement hampering effects. You also gain a +4 inherent bonus to all physical ability scores, a +4 inherent bonus to Acrobatics, Climb, and Swim, and the effects of the Haste and Heroism spells, but you must be healed to at least half HP or die instantly after taking three turns.
Deathless Dusk can only be triggered once per life milestone, and never more than three times in a Man’s life. The third time it is triggered, the Man always dies.