|Location||Unholy Tree, Tier 6|
|Affects||Blood Strike and Heart Strike/ Death Coil|
- This can proc on targets affected by the Cleave affect from Heart Strike.
- Patch 4.0.6 (8-Feb-2011): Sudden Doom is now triggered only from main-hand auto attack, and is normalized according to weapon speed rather than having a fixed percentage chance.
- / Patch 4.0.1 (12-Oct-2010): Changed from tier 8 in Blood to tier 6 in Unholy, and no longer triggered by Blood Strike or Heart Strike.
- Patch 3.1.0 (14-Apr-2009): Now procs a free Death Coil instead of requiring you to push the button. Ranks reduced from 5 to 3.