Nerezza has the Cult Fanatic statblock with the following changes:

• Cantrip: Sacred Flame Cantrip is replaced with Ray of Frost

• 2nd-level spell: Spiritual Weapon is replaced with Moonbeam

• Dagger is replaced with a Nerezza's Moonlight Staff

  • Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d6 + 2) bludgeoning damage. Versatile: 5 (1d8 + 2)

• Add Reaction: Lilith’s Vengeance.

  • As a reaction when struck by a melee attack OR when an attempt is made to remove her Crown of Psychic Dissonance, Nerezza can expend a spell slot to do 6 (2d6) necrotic damage to the attacker. If Nerezza expends a spell slot of 2nd level or higher, the damage increases by 1d6 for each level above 1st.

Moonbeam is a spell generally dedicated to Druids and Paladins. In this case, Nerezza’s devotion to the lunar goddess Sel has granted her the ability to cast it.