Patch 4.0.3a (2010-11-23): Now also has a proc on kill to increase the healing done by the paladin's next Holy Light by 100/200/300% for 15 seconds, in addition to its current effects.
Patch 4.0.1 (2010-10-12): Redesigned. Now increases the damage of Crusader Strike, Hammer of the Righteous, Templar's Verdict, and the healing of Holy Shock. Also moved from tier 4 to tier 1.
Old: Increases all damage caused by 1/2/3% and all damage caused against Humanoids, Demons, Undead and Elementals by an additional 1/2/3%.
Patch 3.0.3 (2008-11-04): No longer applies damage bonus twice to critical strikes.