Choose up to three creatures within range that you can see and specify an order to attack each of them in consecutively. Your spell transforms you into pure lightning, which arcs to each target in the order that you specified without consuming any of your movement, with you transforming back into yourself within 5ft of the last target in the sequence. The targets you chose and any creatures within the three straight, 5ft wide lines that you took to get to them must make a Dexterity saving throw, taking 4d8 lightning damage on a failed save, or half as much on a successful one. The final targeted creature in the sequence is also stunned until the start of your next turn if they failed the saving throw. An opaque wall of crackling electricity appears within the space of those arc lines and lasts for the duration of the spell. Whenever a creature enters the wall for the first time on a turn or ends its turn there, it takes 4d8 lightning damage.

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.