Its form is semi-corporeal, a silhouette of cinematic negative space outlined by swirling snow and film grain. It carries a frost-etched lantern that casts ghostly images of potential scenes, and its passage causes frost to spontaneously crystallize into intricate, momentary illustrations. It is drawn to locations where strong emotions of brotherhood or charitable intent have recently manifested.

It serves as the narrative quality control for the series, ensuring each bag tag's illustration contains a unique, story-advancing interaction between its cast of holiday characters, thereby vetoing generic scenes and demanding cinematic excellence.