Veil Effigy

You force a tear in the Veil to summon forth a large Tombstone packed full of necrotic energies and the souls of the restless dead.

The Tombstone counts as an object that is large in size, and forms a concentrated aura of undeath in a 20 ft. sphere centered on it. The Tombstone has an AC equal your spellcasting save DC (8+Proficiency+spellcasting modifier) and has Hit Points equal half your level (rounded up) times 10. The Tombstone is immune to all conditions, and is immune to Necrotic, Psychic, Fire, Lightning, Cold, Bludgeoning, Piercing, and Slashing from non-magical sources. The Tombstone also is vulnerable to Radiant, Force, and Thunder Damage.

When the Tombstone is summoned and at the start of all hostile creature's turns within its radius, creatures that are not Undead or without a soul must make a Constitution Saving Throw or take Necrotic damage equal to your spellcasting modifier as wandering souls attempt to drain the life from their targets. When a valid creature is reduced to 0 Hit Points while within the radius of the Tombstone, its body is reanimated as a Zombie and Attacks other hostile creatures within the Tombstone's Radius.

If the Tombstone is destroyed, you lose concentration on the spell, or for any Zombies that leave the radius, all Zombies made by this spell have the souls ripped back out of them and are considered dead.