Deadly Poison

Deadly Poison is a poison that is bought by rogues for who then apply it to their weapons. Every time the rogue hits with the weapon, there is a 30% chance of the victim being poisoned for 12 seconds. The poison will deal damage over time. It can stack up to 5 times on the same victim. Once stacked to 5 times, each application of Deadly Poison also causes the poison on the rogue's other weapon to apply.

Source
Deadly Poison is purchased from poison vendors.

Talents

 * Vile Poisons increases the damage dealt by Deadly Poison by up to 20%.

Tips and tactics

 * Used in the Rogue's finishing move Envenom.
 * Worthy to note is that deadly poison on the target causes damage that breaks Rogue's gouge and blind, important tools for control.
 * As of patch 3.3, when a target has reached the maximum number of applications the poison on the other weapon will be applied instead so it's not wasted.