Eversmoking Bottle

As an action remove the stopper to create a cloud of thick smoke in a 60 ft radius. The area is heavily obscured. Each minute the bottle is open the radius increases by 10 ft until it reaches its a radius of 120 ft.

The cloud persists as long as the bottle is open. Closing the bottle requires you to speak its command word as an action. Once the bottle is closed, the cloud disperses after 10 minutes.