Help: Aura of Sinful Vigor Usage sling 'aura of sinful vigor' Available Heretic level 30: Aura of Sinful Vigor. Aura of Sinful Vigor is the group version of Sinful Vigor. It applies Heretic move recovery across valid group members. If the caster owns Rune of the Black Congregation, the underlying Sinful Vigor recovery is doubled for the group as well. Notes Use it when the whole group has been drained by travel, fleeing, or move-heavy combat pressure. See Also: sinful vigor, black congregation, aura of healing, heretic