Heatwave

5-level Evocation

Casting Time: 1 action

Range/Area: Self (~30-foot cube)

Components: V, S

Duration: 1 minute

You create a blistering heat in an area originating from you. The area can be up to 30 feet in each dimension. Each creature that ends its turn in the area must make a Constitution saving throw. On a failed save, a creature takes 6d8 fire damage and gains 1 level of exhaustion. On a successful save, a creature takes half as much damage and is not exhausted. Any exhaustion levels caused by this spell go away when it ends.

At higher levels: When you cast this spell using a spell slot of 6th level or higher, the spell deals an extra 1d8 damage for each slot level above 5th.