Engrave Chest - Deadly Brew
Client records describe this reading. They do not confirm availability in gameplay.
Current client record
Engrave your chest or robe with the Deadly Brew rune: Grants several improvements to your poisons: When you inflict any other poison on a target, you also inflict Deadly Poison. If your weapon does not have a poison applied, it has a chance to trigger Instant Poison as if Instant Poison were applied. Deadly Poison and Instant Poison now gain increased damage from your Attack Power. Your Deadly Poison can now be active on targets affected by another Rogue's Deadly Poison.
Sourced change history
No changes in the tracked log could be matched to this record. This does not mean the ability or item has never changed.