The Aspect of Retribution is an Offensive Aspect. It can be imprinted on Gloves, Offhands, 1H Weapons, 2H Weapons, Rings and Amulets. It can be used by any class.
Effect
Distant enemies have a 10% chance to be Stunned for 2 seconds when they hit you. You deal x[15 - 30]% increased damage to Stunned or Knocked Down enemies.
How to get Aspect of Retribution
The Aspect of Retribution can be unlocked in your Codex from

The best way to get Aspects is to gamble your

