Des's Organic Earthing

You cast a concentrated orb of crackling electricity, which bursts into a 20ft radius from a point you can see within range. Each creature within the affected area must make a Constitution saving throw. On a failed save, the creature takes 5d6 Lightening damage and is Stunned until the end of your next turn. On a save, the creature takes half as much damage and is not Stunned.

At higher levels: When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th.