Antimatter

You turn matter into antimatter to annihilate anything you touch. The target can be a creature, an object, or a creation of magical force, such as a Wall of Force. Make a melee spell attack, dealing 20d12+50 force damage. If this reduces the target to 0 hit points, it's annihilated, leaving only a faint heat behind. The creature can only be restored to life by True Resurrection or Wish.

The spell automatically annihilates a Huge or smaller object or creation of magical force. If the target is Gargantuan, the spell disintegrates a 15-foot cube part of it. Artifacts are unaffected at the DM's discretion.