Tesla Zone

You launch a tiny electric orb to a target. Once that hits the targeted creature, two (their height equals the caster height, this does not affect the damage) lightning rods made of lightning spawn and make a ring of lightning around the target. Then the attack commences. Two electric shock waves that fill the circle from either rod pass through the target dealing 2d4 lightning damage. They go to and from the opposite lightning rod 10 times. The target takes 2d4 damage for each wave of lightning that passes through. The creature may take a Dexterity saving throw to run out of the circle before the second rod rises up from the ground. Once the spell is over, the target is stunned for 3 minutes.