Trap the Soul

With this spell, you attempt to confine the souls of one or more creatures within a gem. The gem holds the trapped souls indefinitely or until it is broken, and the life forces are released.

The spell targets all living creatures within 20 feet of the gem, excluding the caster. The targeted creatures must succeed on a Charisma saving throw against your spell save DC, or have their souls rent from their bodies and trapped within the gem. While their souls are trapped in this way, the affected creatures become incapacitated, and cannot be restored by any means while the gem remains intact.

Alternatively, the spell can be attuned to a specific creature. To do so, the creatures true name must be inscribed upon the gem before the ritual is performed. Performing the ritual in this manner causes the affected creature to automatically fail their saving throw.