Empower the Soul (Epic)

You are treated as having greater moral or ethical fiber than a typical creature of your level or Hit Dice.

The Gates of Hell (Dice Freaks)

Grimoire of Cosmic Entities Volume One By Eli Atkinson, William Church and Serge W. Desir, Jr.

Original Concept by Serge W. Desir, Jr.

Full netbook can be found on the following website

Dicefreaks d20 Community

Benefits: When targeted by a spell which determines its effects by means of your total Hit Dice, you are treated as a creature 10 Hit Dice higher. Thus when targeted by blasphemy, dictum, Holy word, or word of chaos, you may be unaffected by the spell, or suffer lesser effects than a typical creature of your character level. Likewise, undead or Deathless who take this feat are treated as having turn resistance of +10; this turn resistance does not stack with other turn resistance from any other source. You do not gain any increase to hit points, attack bonuses, saves, or any other Hit Dice dependent benefit. The benefit of the feat is virtual only.