Ball Lightning

A 5-foot-diameter Sphere of lightning appears in an unoccupied space of your choice within range and lasts for the Duration. Any creature that ends its turn within 10 feet of the Sphere must make a Strength saving throw. The creature takes 3d10 lightning damage on a failed save, or half as much damage on a successful one. On a failed save a creature, size large or smaller, is pulled against the sphere and is considered grappled. A creature grappled by the ball must make a strength save against you're spell DC to escape the balls pull. Creatures wearing metal armor have disadvantage on this save.

As a Bonus Action, you can move the Sphere up to 60 feet in any direction. If the ball passes within 10 feet of any creatures they must make the same save against the sphere or be pulled into the sphere and take 3d10 lightning damage and be pulled into the sphere. A creature that succeeds this save takes half damage and is not pulled into the sphere. 

When you move the Sphere, you can move the sphere in any direction, but you cannot move the sphere through solid objects and the sphere cannot be more than 120 feet from you. If you move more than 120 feet from the sphere the spell ends. 

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot level above 5th.