Dancing Darkness

You create up to four spheres of darkness within range, that each reduce the illumination level by one step within a 20-foot-radius or one dimly lit,  vaguely humanoid form of Medium size. Whichever form you choose, each light sheds dim light in a 10-foot radius.

As a bonus action on your turn, you can move the darkness up to 60 feet to a new spot within range. A sphere must be within 20 feet of another sphere created by this spell and the effect winks out if it exceeds the spell's range.