A shock-filament was a electrically conductive strand of material that could be added to a floor. A person stepping on a shock-filament could suffer the effects of a stun charge. Xufal D'uat adapted cells in his ship, Venom Sting, with shock-filaments that could stun his prisoners. This customization was to the liking of later owners of the ship, a team of Thalassian slavers.