Type: Divine
Source: Drow of the Underdark
You can channel negative energy to accelerate poisonous effects.
Prerequisite: Rebuke undead, drow or Lolth as patron deity.
Benefit: You can spend a rebuke undead attempt to speed up the effects of poison, affecting all creatures within 20 feet of you. Any poisoned creature in the area that has not yet attempted its saving throw against the poison's secondary effect must do so immediately. (This takes the place of the saving throw at the end of the normal poison duration.)