You choose a 5-foot-square unoccupied space on the ground that you can see within range. A dome made of arcs of lightning rises there and extends towards one creature you can see within 5 feet of it. The target must make a Constitution saving throw. On a failed save, the target takes 2d6 lightning damage and is restrained for the spell’s duration.
As an action, you can cause the dome to contract around the restrained target, who must make a Constitution saving throw. It takes 2d6 lightning damage on a failed save, or half as much damage on a successful one.
To break out, the restrained target can make a Strength check against your spell save DC. On a success, the target escapes and is no longer restrained by the dome.
As an action, you can cause the dome to extend towards a different creature or to move to a different unoccupied space within range. The dome releases a restrained target if you do either.
* - (a small wooden block with two parallel metal prongs. )