Boil Blood

You point to a creature you can see within range. The creature must make a Constitution saving throw, or take 2d8 fire damage and have its blood start boiling for the duration of the spell.

At the end of each turn, the creature can attempt a Constitution saving throw to resist the effect and end the spell, or take another 2d8 fire damage and be unable to repeat the saving throw again until the end of its next turn.

When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.