Constructed from smoke-darkened cowhide stretched taut over an iron frame, its surface bears the ghost marks of brands that never took—pale circles and incomplete letters that serve as testament to those who resisted. Three horn tips from slickhorn cattle are embedded along its edge, rattling like warning bells when carried. Deep rope burns scar the leather in parallel lines, evidence of the hunts that defined its purpose, while prairie dust has worked itself so deep into the grain that no amount of handling will ever clean it.

Operates as the system's immune response, identifying and eliminating those who exist in the gaps between branded and culled, treating neutral existence as infection that must be purged from the competitive range.