The following description applies to MOD 16 - Undermountain.
Item Level: 150
When applied to an item:
Weapon Enhancement Slot: Your At-Will, Encounter and Daily powers deal 5% bonus damage as Necrotic damage.
Increase your life steal chance by 5%.
When activating your At-Will, Encounter and Daily powers you have a 5% chance to double this enchantment's life steal chance for 10 seconds. This cannot happen more than once every 20 sec.