Burning Blood

3rd-level necromancy

Casting Time:1 action
Range:30 feet
Components:V, S, M (a pinch of salt and saltpeter)
Duration:Concentration, up to 1 minute

Choose one living creature you can see within range that has taken unhealed damage from an edged or piercing weapon. The exposed blood of the target turns into burning acid while the spell lasts. At the beginning of each of the creature’s turns, the target must make a Constitution saving throw. On a failure, the target takes 2d4 fire damage.