Wyrd Blade

You shape a sliver of magic into a great blade of force and swing it in a deadly arc, forcing each creature in a 30-foot cone originating from yourself to make a Dexterity saving throw. A creature that is currently concentrating on a spell has disadvantage on its saving throw. On a failed save, a creature takes 4d12 force damage. On a successful save, a creature takes half damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d12 for each slot level above 3rd.