The tag has no physical mass but exerts a gentle photonic pressure, like focused warmth. It draws power directly from the VaporGrid's geometric sun/moon cycles, pulsing brighter during pivotal tournament moments. It can also record and project a brief holographic 'light replay' of the throw it was used to illuminate.

It is the active principle of visibility in the VaporGrid, deciding which player's line, which moment of struggle or triumph, is thrown into sharp, neon relief for the overarching narrative to follow.