You summon a wall of swirling water at a point you can see on the ground within range. The wall can be up to 30 feet long, 10 feet high, and 5 feet thick, or shaped as a ring up to 15 feet in diameter, 20 feet high, and 5 feet thick. Each foot moved through the wall costs 3 feet of movement. The wall's water disappears when the spell ends.   Creatures entering the wall must make a Strength saving throw, taking 2d6 bludgeoning damage on a failure or half as much on a success. Ranged attacks passing through the wall have disadvantage on the attack roll and deal only half damage. Fire effects passing through are instantly extinguished. Cold effects passing through apply to any creature within 5 feet of the point they touch the wall. Lightning effects passing through apply half their damage to any creature in contact with the wall.