Dis' Walls

You touch the ground, transforming it into walls of stone and iron that resemble the mountains of Dis. You can shape the line to any angle as long as it is no greater than the spell's reach. The mountain walls are 30ft (9m) high, 5ft (1,5m) thick and 40ft (12m) long.

When the wall appears, each creature within its area must make a Dexterity saving throw. On a failed save, a creature takes 2d6 bludgeoning damage, or half as much damage on a successful save. A creature takes an additional 1d6 bludgeoning damage if its thrown against another creature or another wall.