Survival in New Vance

Bonus Action. You unleash a specialized aerosol dispersal system containing a potent virucide. Each creature within a 30-foot cone originating from you must make a Constitution saving throw. On a failed save, the target takes 4d8 necrotic damage and its movement speed is halved for 1 minute. On a successful save, the target takes half damage and its speed is not reduced. The virucide dissipates immediately after use. Shamblers have disadvantage on their saving throw.