From Edge of Darkness Wiki
Prey Charm
Your character keeps around a talisman made from some part of a prey animal (likely the kind of prey hunted by the shapechanger’s own animal). It might be a rabbit’s foot, a coyote ear, a desiccated fish skeleton or even a bunch of dead wasps in a jar. It’s always worn as some kind of jewelry, often around the neck or dangling from a bracelet (though it’s possible it could serve as something unconventional such as a keychain).
Once per game session, the charm provides its “luck” for a character at a moment of the player’s choosing. The player may re-roll a failed roll, and gain +3 dice to the re-roll.