Wall of Iron

A nonmagical wall of solid slone springs into existence at a point you choose within range. The wall is 6 inches thick and is composed of ten 10-foot-by-10-foot panels. Each panel must be contiguous with atleast one other panel. Alternatively, you can create 10-foot-by-10-foot panels that are only 3 inches thick. If the wall cuts through a creature's space when it appears, the creature is pushed to one side of the wall (your choice).

lf a creature would be surrounded on all sides by the wall (or the wall and another solid surface), that creature can make a Dexterity saving throw. On a success, it can use its reaction to move up to its speed so that it is no longer enclosed by the wall. If you create a span greater than 20 feet in length, you must halve the size of each panel to create supports. You can crudely shape the wall to create crenellations, battlements, and so on. The wall is an object made of iron that can be damaged and thus breached.

Each panel has AC 18 and 60 hit points per inch of thickness. Reducing a panel to O hit points destroys it and might cause connected panels to collapse at the DM's discretion. lf you maintain your concentralion on this spell for its whole duration, the wall becomes permanent and can't be dispelled. Otherwise, the wall disappears when the spell ends. Like any iron wall, this wall is subject to rust, perforation, and other natural phenomena.