System: Originally thought to be developed by a Ragabash who intended it to be a sly poke at the Garou justice system, these fetishes are extremely rare (despite their low level). When struck on any wooden object they produce a thunderous booming which is extremely impressive -- all Garou hearing the following judgement will be less likely to object to it (simple Willpower roll, difficulty 7, required to object to the ruling). This effect will only function if the Garou is attending a Moot and is using the fetish in an official capacity; as such, very few Garou tend to use them apart from those working as a Sept official.
Spirit: Either a spirit of thunder or justice must be bound into a suitable gavel.