Wikia

Soul Leech
Soul Leech (Passive) Passive Affliction Your Malefic Grasp, Drain Soul or Haunt spells grant you and your pet a shadowy shield that absorbs a percentage of the damage dealt for 15 sec. Demonology Your Shadow Bolt, Soul Fire and Touch of Chaos spells grant you and your pet a shadowy shield that absorbs a percentage of the damage dealt for 15 sec. Destruction Your Incinerate and Chaos Bolt spells grant you and your pet a shadowy shield that absorbs a percentage of the damage dealt for 15 sec.
Usable by
Class	Warlock
Properties
School	Physical
Talents
Talented	Yes
Level required	15

Soul Leech is a warlock talent available at level 15.

Modified by

Patch 5.2.0 (5-Mar-2013): Soul Leech now provides an absorption shield instead of healing.
Patch 5.0.4 (28 August 2012): Updated.
Patch 3.1.0 (14-Apr-2009): Improved Soul Leech talent now provides Replenishment.
Patch 2.1.0 (22-May-2007): Fixed some data errors that caused Soul Leech and Conflagrate to generate more threat than intended.