Blood Boil

3rd-level evocation (hemomancy)
Casting Time: 1 action
Range: 60 feet
Components: V, S
Duration: Instantaneous

You inflict a burning pain on a creature with blood within range, making their insides boil. The target must make a Constitution saving throw. On a failed save, the target takes 6d6 fire damage and is incapacitated until the end of its next turn. On a succesful save, it takes half as muc damage and is not incapacitated.
Amplify 3. The target has disadvantage on the saving throw it makes to resist the spell's effect.
At Higher Levels. When you cast this spell with a spell slot of 4th level or higher, you can target one additional creature with blood for each slot level above 3rd.