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Deathless Initiate (Combat)
For you, impending death is a call to wrath.
Benefit: You are not staggered while using the Diehard feat, but if you take a move and a standard action or a full-round action while you are at 0 or fewer hit points you take 1 point of damage. Further, while using the Diehard feat, you gain a +2 bonus on melee attacks and damage rolls.