2-level Evocation
A helix of fire surrounds you, whipping nearby foes. Every creature of your choice in range must make a Dexterity saving throw. A target takes 2d6 fire damage on a failed save, or half as much damage on a successful one.
For the duration, if a creature starts its turn within 10 feet of you, you can use your reaction to force it to make another Dexterity saving throw. A target that fails this save takes 2d6 fire damage on a failed save, or half as much on a successful one.
When you cast this spell using a spell slot of 3rd level or higher, the initial fire damage increases by 1d6 for each slot level above 2nd.