Lethal Concoction is a powerful area damage-over-time Assassin ability. It creates an Acid Pool with a range of 10 yards around the player. The Acid Pool last 10 seconds; during that time, ALL enemy targets caught within the Acid Pool take 15% Melee DPS per second.
Can be learned from a Scroll of Lethal Concoction. You can buy one from a Combat Trainer for 1 gold.
Talents that amplify Lethal Concoction: