Nullifier’s Lexicon

Wondrous item, very rare (requires attunement)

This book has a black leather cover with silver bindings and a silver front plate. Void Speech glyphs adorn the front plate, which is pitted and tarnished. The pages are thin sheets of corrupted brass and are inscribed with more blasphemous glyphs. While you are attuned to the lexicon, you can speak, read, and write Void Speech, and you know the crushing curse cantrip.

By intoning certain passages from the lexicon, you can cast the following spells: conjure voidborn, dominate monster, life drain, shatter, and thunderwave.

You can cast a spell once from the nullifier’s lexicon without difficulty. For each successive casting, you take a cumulative 1d6 necrotic damage. This resets when you finish a long rest.

Finally, you can spend 1 minute pronouncing a complicated passage in Void Speech to rearrange reality to your will. State your general intention when you make the pronouncement (“Strike down my enemies,” “repair the damage the dragon’s breath did to me,” etc.). The DM decides the form this alteration of reality takes, but the effect of any wizard, cleric, or Void magic spell is appropriate. When the effect occurs, you suffer 5d10 necrotic damage, and you can’t use this ability again for 7 days.