You create a wall of fire on a solid surface within range. You can make a wall up to 60 feet long 20 feet high and 1 foot thick of a ringed wall 20 foot diameter 20 feet high and 1 foot thick. Wall lasts for 1 minute and is opaque. When it appears each creature within its 10 foot area must make a dex check. On a failed save creature takes 5d8 fire damage or half as much on a successful one and 1d12 lightning damage. On one side of the wall chosen by you. The other side does no damage.