Wall of Iron

A nonmagical wall of solid iron 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 at least one other panel. Alternatively, you can create 10-foot-by-20-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). If 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. The wall can have any shape you desire, though it can’t occupy the same space as a creature or object.

The wall doesn’t need to be vertical or rest on any firm foundation. It must, however, merge with and be solidly supported by an existing structure or the ground. Thus, you can use this spell to bridge a chasm or create a ramp.

If you create a span greater than 20 feet in length, you must halve the size of each panel to create supports. You can shape the wall to create crenelations, battlements, arrow loops, windows with bars or shutters, doors with hinges and locks, and so on. Mechanical detail finer than a lock cannot be created with this spell.

The wall is an object made of metal that can be damaged and thus breached. Each panel has AC 18 and 60 hit points per inch of thickness. Reducing a panel to 0 hit points destroys it and might cause connected panels to collapse at the DM’s discretion. The wall is immune to slashing and piercing damage from nonmagical weapons that are not made from adamantine, as well as necrotic, psychic and poison damage.

If you maintain your concentration on this spell for its whole duration, the wall becomes permanent and can’t be dispelled. Otherwise, the wall disappears when the spell ends.