Undead Hunter (3.5e Feat)
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Undead Hunter [Divine]
You can channel an amazing amount of energy to deal extra damage against undead in melee combat.
Benefit: As a free action, spend one of your turn undead attempts to add 1d6 points of damage to all your successful melee attacks against undead for a number of rounds equal to your Charisma modifier. *See Complete Warrior for this feat.