Lightning Strike

You spin and teleport to an unoccupied space
that you can see within 60 feet, then each
creature within 10 ft of you makes a Dex save.
A creature takes 6d10 lightning damage on a
failure, or half on a success. You can instantly
teleport back to the space you occupied when
casting the spell.
At Higher Levels. Each extra spell slot increases
the damage by 1d10.