Casting Time: 1 action
Range: 60 feet
Components: V, S
Duration: Concentration, up to 1 minute
An orb of cackling energy appears in an unoccupied space within range and slowly moves in a direction you choose. It moves 10 feet at the end of each of your turns in the chosen direction. You can take a bonus action to change the direction of the orb during your turn.
When the orb is first created and each time it moves 5 feet, roll a d10 for each creature within 10 feet of the orb. On a 5 or less, an arc of electricity shoots at the creature. It must make a Dexterity saving throw. A creature takes 5d8 lightning damage on a failed save, or half as much damage on a successful one. A creature can be struck more than once by the orb during a turn.
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.