Increase Virulence(Player's Handbook II)
Level: Assassin 2, Bard 2, Blackguard 2, Sorcerer 2, Wizard 2, Spellthief 2,
Components: V, S, M,
Casting Time: 1 minute
Target: Vial of poison or creature touched
Duration: 1 minute/level
Saving Throw: None
Spell Resistance: No
Ribbons of green and black energy engulf your hand and pass into the vial or creature you touch.
You make the poison in a vial or a creature more lethal.
The DCs for all saving throws against the poison increase by 2.
Material Component: Licorice root.