True Dissolve

Incredibly potent acid permeates a target within range to attempt to dissolve them. The target must make a Constitution saving throw. The target takes 10d6 acid damage on a failed save, or half as much damage on a successful one. This damage ignores immunity or resistance to acid damage. The target is dissolved if this damage leaves it with 0 hit points.

A dissolved creature and everything it is wearing and carrying, except magic items, are reduced to a puddle of residue. The creature can be restored to life only by means of a true resurrection or a wish spell.

This spell automatically dissolves a Large or smaller nonmagical object. If the target is a Huge or larger object, this spell dissolves a 10-foot- cube portion of it. A magic item is unaffected by this spell.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 for each slot level above 5th.