Banatu's Mortiferous Toll

You summon a large wrought iron bell above you held up by an avatar of death. When it appears the bell rings, and all creatures within 60 ft who can hear must make a Charisma saving throw or take 4d8 necrotic damage or half on a success. On a failed save, their soul is shunted from their body, connected only by a thin cord, and until the spell ends any attack that hits the creature counts as a critical hit as their soul is directly attacked. When a creature takes damage this way, the spell ends for them and their soul returns to their body.