Hydaelyn

A blast of virulent air erupts from your hands, forcing each creature in a 60-foot cone to make a Constitution saving throw. On a failed save, a creature takes 4d8 poison damage and 4d8 necrotic damage, and becomes poisoned for 1 minute; on a successful save, they take half damage and avoid the poisoned condition. A poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on a success. When cast using a spell slot of 6th level or higher, the necrotic damage increases by 2d8 for each slot level above 5th.