Blood Boil

A creature of your choice that you can see within range suddenly feels their blood boiling. The target must make a Constitution saving throw. The target takes 6d10 acid damage on a failed save, or half as much damage on a successful one. On a failed save, the target becomes incapacitated from an internal injury.  At the end of each of its turns, the target can make another Constitution saving throw. On a success, the spell ends on the target.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d10 for each slot level above 4th.