Cero

You channel the power of your Hollow mask to unleash a devastating blast of energy. You fire a 30-foot cone of pure energy in front of you. Each creature within the cone must make a Dexterity saving throw. On a failed save, a creature takes 8d6 force damage. On a successful save, a creature takes half as much damage.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 2d6 for each level above 3rd.