Sofina

Sofina wears a magic robe that grants her a +2 bonus to AC and a +1 bonus to saving throws (included above).

Sofina makes three Necrotic Strike attacks.

Melee or Ranged Spell Attack Roll: +10 to hit, reach 5 ft. or range 120 ft., one target. Hit: 32 (5d10 + 5) necrotic damage.

Sofina magically calls down a meteor swarm that detonates in four 40-foot-radius spheres, each one centered on a point she can see within 1 mile of herself. These spheres can overlap. Each creature in one or more of these spheres must make a DC 18 Dexterity saving throw, taking 35 (10d6) fire damage and 35 (10d6) bludgeoning damage on a failed saving throw, or half as much damage on a successful one. A creature in multiple spheres takes this damage only once.

Sofina casts one of the following spells, using Intelligence as the spellcasting ability (spell save DC 18):

At will: mage hand, message, prestidigitation

2 each/day: bestow curse, Bigby's hand, dimension door, mage armor, Otiluke's resilient sphere, thunderwave

1 each/day: Evard's black tentacles, finger of death, time stop