||The subject of this article was removed from World of Warcraft in patch 4.0.1.
- This includes items and quests that can no longer be obtained.
- The in-game information in this article is kept purely for historical purposes and should probably not be under any other categories.
|Casting time||Unknown sec cast|
Impurity is a Death knight talent located in the 5th tier of the Unholy Tree.
Rank table Edit
| Rank || % Increase
| 1 || 4
| 2 || 8
| 3 || 12
| 4 || 16
| 5 || 20