|The subject of this article was removed from World of Warcraft in patch 5.0.4.
- Patch 5.0.4 (2012-08-28): Removed.
- Patch 4.0.1 (2010-10-12): This talent moved from 4th tier Unholy to 3rd tier Blood.
- Patch 3.2.0 (2009-08-04): The damage from this talent is no longer normalized to weapon speed.
- Patch 3.1.0 (2009-04-14): Now has a 3 second cooldown on the effect.