Wall of the Dead

You create a shadowy wall of skeletons, zombies and black tendrils on a solid surface within range. You can make the wall up to 70 feet long, 10 feet high, and 1 foot thick, or a ringed wall up to 30 feet in diameter, 10 feet high, and 1 foot thick. The wall is opaque and lasts for the duration.

When the wall appears, each creature within its area must make a Dexterity saving throw. On a failed save, a creature takes 6d6 necrotic damage and are restrained, or half as much damage and not restrained on a successful save. Restrained opponents can make a strength saving throw at the beginning of each of their turns against the caster's spell DC to free themselves.

One side of the wall, selected by you when you cast this spell, deals 6d6 necrotic damage to each creature that ends its turn within 10 feet of that side or inside the wall. A creature takes the same damage when it enters the wall for the first time on a turn or ends its turn there. The other side of the wall deals no damage.

As a bonus action on each turn, caster may move the wall 5' in any direction. Those restrained in the wall move with it.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th.