From Edge of Darkness Wiki
Broken Mirror
Regardless of the fetch’s true nature, whether the fetch is capable of genuine compassion or is become as solipsistic as the Other that spun it of wood and shadow and rusty wire, killing a fetch isn’t easy for a changeling. Destroying the duplicate of a changeling (or, worse, one’s own) feels entirely too much like destroying the changeling in question, or like destroying a part of yourself. Such a task is a breaking point for changelings of Clarity 5 or higher (p. 92).
However, the act of personally destroying one’s own fetch is also a turning point of sorts. The killing may erode the changeling’s sense of self, but it also places him in a greater mastery of his own fate. And as Arcadia’s orphans, fate is more than a simple abstraction to the Lost.
The player may invoke the Broken Mirror Merit once per story to gain three additional dice on a roll, just as if he had spent a Willpower point. This Merit does not count as a Willpower expenditure, and can in fact be used on a roll that is also augmented with a Willpower point, for a total of six dice.
A changeling who personally kills his own fetch gains this milestone Merit, without having to purchase it with experience points. This Merit can be gained only in play; it cannot be given to a character during character creation, even if his fetch died during the course of his prelude. Players who want to simulate killing their fetches as part of backstory may choose to purchase extra Resolve or Composure at character creation instead.
