Ball Lightning

You create a 5-foot-diameter sphere of lightning in an unoccupied space within range. It lasts for the duration. Any creature that ends its turn within 10 feet of the sphere makes a Dexterity saving throw, taking 3d6 Lightning damage on a failed save or half as much damage on a successful one.

As a Bonus Action, you can move the ball up to 30 feet, floating it through the air. If you move the ball into a creature’s space, that creature makes the save against the ball, and the ball stops moving for the turn.

The ball sheds Bright Light in a 30-foot radius and Dim Light for an additional 30 feet.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 3.