Tempest Spear

You hurl a spear of unstable crackling lightning at a creature within range. The target and any creature within 5 feet of it must succeed on a Constitution saving throw. On a failed save, they take 8d6 lightning damage and are stunned until the beggining of their next turn. On a succesful save, they only take half as much damage.

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.