Increases the damage dealt by your poisons by 12/24/36% and gives you 33/66/100% of the normal chance of applying poisons from your equipped melee weapons when you use the Fan of Knives ability.
Patch 4.0.1 (2010-10-12): No longer increases damage of Envenom or gives poisons additional chance to be resisted. Now gives your Fan of Knives ability a chance to apply the poison applied to equipped melee weapons.
[Fan of Knives]
Patch 4.0.1 (2010-10-12): No longer increases damage of Envenom or gives poisons additional chance to be resisted. Now gives your Fan of Knives ability a chance to apply the poison applied to equipped melee weapons. 
