Boil Hex

This spell has the Hex tag. Choose a creature within range to be covered in stings or boils. The creature must make a Constitution saving throw against your spell save DC. They take 4d6 necrotic damage on a failed save and take an additional 2d6 necrotic damage from all attacks for the next 2d6 rounds, and take half as much initial and recurring damage on a successful save.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the initial and recurring damage, as well as the duration, increases by 2d6 per each spell slot above 4th.