Hammer of Justice / Storm Bolt

You conjure a magical hammer that crackles with thunder and electricity and hurl it at the target. Make a ranged spell attack against the target. On a hit, the target takes 1d6 bludgeoning damage and 1d6 thunder damage. They must then make a Constitution saving throw or take 2d6 electricity damage and be stunned for 1 round, or half as much damage on a successful save without being stunned.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the lightning and thunder damage each increase by 1d6 for each slot level above 2nd.