Shapechanger. Baba Lysaga can use an action to polymorph into a swarm of insects (flies), or back into her true form. While in swarm form, she has a walking speed of 5 feet and a flying speed of 30 feet. Anything she is wearing transforms with her, but nothing she is carrying does.

Blessing of Mother Night. Baba Lysaga is shielded against divination magic, as though protected by a nondetection spell.

Spellcasting. Baba Lysaga is a 16th-level spellcaster. Her spellcasting ability is Intelligence (spell save DC 17, +9 to hit with spell attacks). Baba Lysaga has the following wizard spells prepared:

Cantrips (at will): acid splash, fire bolt, light, mage hand, prestidigitation

1st level (4 slots): detect magic, magic missile, sleep, witch bolt

2nd level (3 slots): crown of madness, enlarge/reduce, misty step

3rd level (3 slots): dispel magic, fireball, lightning bolt

4th level (3 slots): blight, Evard's black tentacles, polymorph

5th level (2 slots): cloudkill, geas, scrying

6th level (1 slot): programmed illusion, true seeing

7th level (1 slot): finger of death, mirage arcane

8th level (1 slot): power word stun

Multiattack. Baba Lysaga makes three attacks with her quarterstaff.

Quarterstaff. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit:7 (1d6 + 4) bludgeoning damage, or 8 (1d8 + 4) bludgeoning damage if wielded with two hands.

Summon Swarms of Insects (Recharges after a Short or Long Rest). Baba Lysaga summons 1d4 swarms of insects. A summoned swarm appears in an unoccupied space within 60 feet of Baba Lysaga and acts as her ally. It remains until it dies or until Baba Lysaga dismisses it as an action.