This article contains information from the Trading Card Game which is considered non-canon.
Drain Essence is an ability that appears on the following World of Warcraft: Trading Card Game cards.
- Wrathgate #81 - Drain Essence
- Class Starter 2011: Horde Warlock #2 - Drain Essence
- Class Starter 2013: Alliance Warlock #2 - Drain Essence
Drain Essence's artwork was later reused for the Hearthstone card From Beyond.