Vengeance (paladin talent)

Vengeance is a Retribution Paladin talent that increases Holy and Physical damage after critial strikes from weapon swings.

One of the best talents in the retribution tree.

In PvE, a good percentage of critical strike means that you will have the 3 stacks during all the fight.

In PvP, it's also a good bonus after you make a critical hit. The buff remains even after your enemy has died.