Wall of Bones

A grim wall of fractured bones appears at a point you choose within range. The wall appears in any orientation you choose: horizontally, vertically, or diagonally. It must rest on a solid surface. The wall can be up to 60 feet long, 10 feet high, and 5 feet thick. The wall blocks line of sight, and creatures can't pass through it. The wall has an AC of 15, 150 hit points and immunity to poison and psychic damage. Reducing it to 0 hit points destroys it.

When the wall appears, each creature in it's area must make a Dex saving throw. On a failed save, a creature takes 4D8 Bludgeoning damage, and it is pushed to the first available free space. On a successful save, it takes half as much damage but is still pushed. Until the spell ends, you can use an action to summon a Minotaur skeleton with a murderous killing intent from the wall by sacrificing 20 hit points from the wall. The creature appears in a space of your choice adjacent to the wall. When you summon a Minotaur Skeleton in this way, designate a creature you can see within 60 feet of it, it becomes the sole enemy of the summoned creature that will try to kill it in any way, it is immune to charms and doesn't listen to orders you issue, only attacking the target. Once it's target is dead, it vanishes in a pile of dust.

You can have a maximum of 3 summoned creatures by this spell at once.