Energy Burst

You release the arcane energy flowing around you. Choose acid, cold, fire, force, lightning, necrotic, poison, radiant, or thunder damage and choose a 50-foot cone, 20-foot sphere within 120 feet, or a 100-foot line. Each creature other than you in the area must succeed on a Dexterity saving throw. A target takes 8d8 damage of the chosen type on a failed save, or half as much on a succesful one.

At Higher Levels. When you cast this spell using a spell slot of 6rd level or higher, the damage increases by 1d8 and the size increases by 10 feet for each slot level above 5th.