Patch 3.3.3 (2010-03-23): This talent can no longer trigger a stun, and instead increases damage done by Revenge by 30/60% and causes Revenge to strike an additional target.
Patch 3.0.2 (2008-10-14): Now increases damage Revenge causes by 10/20% and gives a 25/50% chance to stun.
Patch 1.7.0 (2005-09-22): The stun effect can now be resisted.