Cajin Lightning Bolt

A bolt of lightning falls from the sky striking an area with a 10  foot radius within 100 feet of you. Each creature in the area must make a Dexterity saving throw. A creature takes 6d6 lightning damage on a failed save, or half as much damage on a successful one.
If the creature moves on their next turn they take an additional 3d10 thunder damage from the quivering still remaining in the air. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 and 1d10 for each slot level above 5th.