Emberstorm

You call forth a storm of blazing embers and thick, choking smoke in a 30-foot-radius, 40-foot-high cylinder centered on a point within range. The area within the cylinder is heavily obscured by smoke, and the ground is littered with burning embers, making the air and ground difficult terrain. Each creature in the area when the spell is cast, or that ends its turn there, must make a Dexterity saving throw. On a failed save, a creature takes 7d6 fire damage and 7d6 poison damage, and is poisoned until the end of its next turn. On a successful save, a creature takes half as much damage and isn’t poisoned.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 1d6 for each slot level above 7th. When you cast this spell using a spell slot of 8th level or higher, the range of the spell increases by 20 feet for each slot level above 7th.