Boiling Blood

You attempt to boil the blood of one creature that you can see within range. If the body of the target has blood, the creature must make a Constitution saving throw. On a failed save, it is poisoned and takes 2d6 fire damage as its blood begins to heat to a boil. A creature affected by this spell takes 2d6 fire damage then must make another Constitution saving throw at the end of each of its turns. If it successfully saves against this spell the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature, and the damage increases by 1d6 for each spell slot level above 3rd.