DISINTEGRATE - Transmutation - 6th Level

Casting Time: 1 Action
Range: 60 feet
Components: V, S, M (a lodestone and a pinch of dust)
Duration: Instantaneous

A thin green ray springs from your pointing finger to a target that you can see within range.  The target can be a creature, an object, or a creation of magical force, such as the wall created by Wall of Force.
  A creature targeted by this spell must make a Dexterity saving throw.  On a failed save, the target takes 10d6+40 force damage.  If this damage reduces the target to 0 hit points, it is disintegrated.
  A disintegrated creature and everything it is wearing and carrying, excepted magic items, are reduced to a pile of fine gray dust.  The creature can be restored to life only by means of a True Resurrection or a Wish spell.
This spell automatically disintegrates a Large or smaller nonmagical object or a creature of magical force.  If the target is a Huge or larger object or creature of force, this spell disintegrates 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 7th level or higher, the damage increases by 3d6 for each slot above 6th (19d6+40 force damage at 9th level...woof).

Class List: Sorcerer, Wizard.
Source: 5th Edition SRD, Player's Handbook