You can channel negative energy to increase the power of inflict wounds spells cast near you.
Prerequisite: Ability to rebuke undead.
Benefit: You can spend a rebuke attempt as standard action to place an aura of negative energy upon each creature within a 60-ft. burst. Any inflict spell cast on one of these creatures before the end of your next turn is automatically maximized, with no adjustment to the spell’s level or casting time.
Source: Complete Divine, page 84.