You sacrifice a fragment of your soul to spark a gout of ill-green flames that roar from your hands in a 5-foot-wide, 100-foot-long line. Each creature in the line must make a Dexterity saving throw. A creature takes 8d8 fire damage on a failed save, or half as much damage on a successful one. Constructs and undead aren’t affected. You take 4d8 necrotic damage.

You can create a new line of fire as your action on any turn until the spell ends. Each time you create a new line of fire, you take 4d8 necrotic damage.

If damage from this spell reduces a creature to 0 hit points, the creature is turned to ash.

For the duration, your hands are wreathed in ill-green flames. They shed bright light in a 5-foot-radius and dim light for an additional 5 feet. These flames harm neither you nor your equipment.