Unbreakable Willpower (3.5e Feat)

Brave and Bold: Whenever you succeed a will save against a spell or ability originating from an hostile creature whose CR is equal or higher than yours you fall under the effect of good hope until the end of your next turn.

Inspire Willpower: As a standard action you grant a +4 moral bonus on will saves to all your allies within 30 feet of yourself. This bonus last for 3 round.

Keep Going: You may use your will save instead of your fortitude save on saves against effect that would make you fatigued or exhausted. Once per day as an immediate action you may use your [will] save instead of any fortitude or reflex save.

Last Resort Sacrifice: Once per day as an immediate action you can push yourself over the edge, replicating the effect of heal and freedom and a number of temporary hit point equal to five time your character level for 1 minute. However after 1 minute passed you take 12 points of ability burn to all ability scores.