Bulbous Hag

Coven Magic. While within 60 feet of any other hag friend or foe, the bulbous hag can cast one of the following spells, requiring no Material components, using the spell’s normal casting time, and using Intelligence as the spellcasting ability (spell save DC 15): Augury, Find Familiar, Identify, Locate Object, Scrying, or Unseen Servant. The bulbous hag must finish a Long Rest before using this trait to cast that spell again.

Magic Resistance. The bulbous hag has Advantage on saving throws against spells and other magical effects.

Soul Bag. The bulbous hag has a soul bag. While holding or carrying the bag, the bulbous hag can cast Cause Fear without needing to maintain concentration.  They can cast this spell in this way up to three times per day. 

The bag has AC 12, HP 14, and Resistance to all damage. The bag turns to dust if reduced to 0 Hit Points. If the bag is destroyed, any souls the bag is holding are released. The bulbous hag can create a new bag after 7 days.

Multiattack. The bulbous hag makes two Claw attacks.

Claw. Melee Attack Roll: +7, reach 5 ft. Hit: 16 (3d8 + 4) Slashing damage.

Burst (1/Day; 2-Turn Action). The bulbous hags head begins to swell and expand in size rapidly. Until the start of the bulbous hags next turn their speed becomes 0.

At the start of the bulbous hags next turn their head explodes in a burst of mucus.  Each creature withing 30 feet of the bulbous hag must make a Dexterity saving throw [DC 19] taking 35 (10d6) Alashing damage on a failed save, or half as much damage on a successful one.

After the explosion the bulbous hags body, along with anything they were carrying or holding dissapear and are teleported to the Ethereal Plane in a location of the GM's choosing.

While on the Ethereal Plane, as long as they had possession of their Soul Bag and at least one soul stored in that bag, can use a magic action to reform their physical body in an unoccupied space they can see.  Reforming their body in this way consumes a soul from their Soul Bag.  While not in their physical form the bulbous hag does not need to eat, drink, sleep, or breath, cannot take damage, cannot move, and has the incapicated condition.  If they do not have a soul in their bag, and one does not appear near them in the next 7 days, their soul is forfiet to the soul bag which drops to the ground with thier soul trapped inside.

Soul Scavenger (5/Day; Requires Soul Bag). If a creature has the frightened condition, the bulbous hag can sense when a creatures soul is about to become available.  The bulbous hag can target a single creature who must make a wisdom saving throw DC 19.  On a failed save, the target is cursed.  

While cursed in this way, the target has disadvantage on all Wisdom D20 tests, and if the cursed creature drops to 0 hit points within the next 7 days, the bulbous hag that cursed them is intstantly summoned to their location.  If the bulbous hag kills the cursed creature, the creatures soul is added to their Soul Bag.

Spellcasting. The bulbous hag casts one of the following spells, requiring no Material components and using Intelligence as the spellcasting ability (spell save DC 15):

At Will: Inflict Wounds, Etherealness, Magic Missile (level 4 version)
2/Day Each: Invisibility, Plane Shift (self only)

Spiteful Shriek. Each creature the bulbous hag can see and is under the frightened condition takes 1d4 psychic damage.

Blackout. Once per day, the bulbous hag can cast Darkness as a reaction.