Help: Sinful Vigor Usage sling 'sinful vigor' <target> Available Heretic level 18: Sinful Vigor. Sinful Vigor restores move with a dark Heretic surge. It is Heretic stamina recovery, not a hit-point heal. Current Effect The spell restores move using the healing-scaling system, with an extra flat boost added before the move is returned. Rune of the Black Congregation When the 450-remort Heretic rune is owned, Sinful Vigor restores twice as much movement. Aura of Sinful Vigor uses the same underlying recovery and receives the same benefit. See Also: invigorate, aura of sinful vigor, black congregation, heretic