Cobra’s Breath

When you cast this spell, your saliva transforms into a virulent poison which you then expel in a 10-foot cone. Each creature in the cone must make a Constitution saving throw. On a failed save, a creature's Constitution score is reduced by 1d6. This reduction lasts for 1 hour. If a creature's Constitution score is reduced to 0 by this spell, the creature dies.

On a successful save, the creature is unaffected.