Toxic Breath

When you cast this spell, your lungs expand to their maximum volume before exhaling with as much force as you can muster. The result is a 40 foot cone of billowing toxic gas emanating from you.

Each creature in the area when the cone appears must make a Constitution saving throw or take 6d6 poison damage and be poisoned for one minute. On a successful save creatures take half damage and are not poisoned.

At Higher Levels. When you cast this spell sing a spell slot of 4th level or higher, the damage increases by 1d6 per slot level over 3rd.