Wall of Bones

A wall of writhing bones and skeletons springs into existence at a point you choose within range. The wall is 6 inches thick and is composed of three 10-foot-by-10-foot panels. Each panel must be contiguous with at least one other panel. If the wall cuts through a creature's space when it appears, the creature is pushed to one side of the wall (your choice). Any creature that starts its turn next to a wall must make a Dexterity saving throw or take 1d8 bludgeoning damage and become restrained.

The creature can make a Strength saving throw at the start of each of its turns, taking the same damage on a failure or freeing itself on a success. The wall is an object that can be damaged and thus breached. Each panel has AC 10 and 20 hit points per inch of thickness. Reducing a panel to 0 hit points destroys it.