Increase Virulence

(Player's Handbook II, DnD 3.5)

Transmutation

Level: ; Assassin 2; Bard 2; Blackguard 2; Sorcerer/Wizard 2
Components: V, S, M
Casting Time: 1 minute
Range: Touch
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.