Vengeance Paladin

From WoW: IncGamers World of Warcraft Wiki

Talent: Vengeance Paladin
Effect: Gives you a bonus to Physical and Holy damage you deal for 15 sec after dealing a critical strike from a weapon swing, spell, or ability. This effect stacks up to 3 times.
Statistics: Rank 1 = +1%, Rank 2 = +2%, Rank 3 = +3%, Rank 4 = +4%, Rank 5 = +5%.