Ashes of Pompeii

Closing your eyes and reaching a hand forward towards a target within range you mutter the Astral words for Time, Accelerate, and End as dark blue light beams out of your hand towards the target Dexterity or Constitution save (your choice) on a failed save the target takes d4 Psychic damage equal to your casters level and deal an additional 20 acid damage. For example, if your level 11, then you deal 11d4 psychic damage + 5d4 acid damage. If you are multiclassing this would be your overall level for example if you are a Multiclass (Level 10)(Level 5) Then you would be dealing 15d4 psychic damage + 5d4 acid damage.

If this brings the target to 0 Hit points they are disintegrated and turned into ash. A disintegrated creature and everything it is wearing and carrying, except magic items, are reduced to a pile of fine grey dust. The creature can be restored to life only by means of a true resurrection or a wish spell.