Initiation Time: 1 action
Range: 60 feet
Duration: Concentration, up to 1 minute
You create a 20-foot-radius sphere of smoky, superheated air centered on a point within range. The cloud spreads around corners and its area is heavily obscured. The cloud lingers in the air for the duration.
Each creature that is completely within the cloud at the start of its turn must make a Constitution saving throw against poison. On a failed save, the creature spends its action that turn choking and burning. Creatures that don't need to breathe or are immune to poison automatically succeed on this saving throw. A moderate wind (at least 10 miles per hour) disperses the cloud after 4 rounds. A strong wind (at least 20 miles per hour) disperses it after 1 round.
As a bonus action on your turn, you can move the cloud up to 20 feet anywhere within range.