Baba Feya (DATR Baba Yaga, Witch from H&G)

Spoon Magic. The hag carries a spoon and bowl, a length of spoon that is a focus for her inner power. She can  grow  and ride the bowl and spoon as if it were a broom of flying. While holding the spoon, she can cast additional spells with her Innate Spellcasting trait (these spells are marked with an asterisk). If the spoon is lost or destroyed, the hag must craft another, which takes a year and a day. 

Innate Spellcasting. The hag's innate spellcasting ability is Charisma (spell save DC 12). She can innately cast the following spells, requiring no material components:

At will: dancing lights, minor illusion, vicious mockery

1st level (4 slots): identify, ray of sickness

2nd level (3 slots): hold person, locate object

3rd level (3 slots): bestow curse, counterspell, lightning bolt

4th level (3 slots): phantasmal killer, polymorph

5th level (2 slots): contact other plane, scrying

6th level (1 slot): eyebite

For casting these spells, each hag is a 12th-level spellcaster that uses Intelligence as her spellcasting ability. The spell save DC is 13, and the spell attack bonus is +5.

Mimicry. The hag can mimic animal sounds and humanoid voices. A creature that hears the sounds can tell they are imitations with a successful DC 14 Wisdom (Insight) check.

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage.

Illusory Appearance. The hag covers herself and anything she is wearing or carrying with a magical illusion that makes her look like another creature of her general size and humanoid shape. The illusion ends if the hag takes a bonus action to end it or if she dies.

The changes wrought by this effect fail to hold up to physical inspection. For example, the hag could appear to have smooth skin, but someone touching her would feel her rough flesh. Otherwise, a creature must take an action to visually inspect the illusion and succeed on a DC 20 Intelligence (Investigation) check to discern that the hag is disguised.

Maddening Feast. The hag feasts on the corpse of one enemy within 5 feet of her that died within the past minute. Each creature of the hag’s choice that is within 60 feet of her and able to see her must succeed on a DC 15 Wisdom saving throw or be frightened of her for 1 minute. While frightened in this way, a creature is incapacitated, can’t understand what others say, can’t read, and speaks only in gibberish; the DM controls the creature’s movement, which is erratic. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the hag’s Maddening Feast for the next 24 hours.

Invisible Passage. The hag magically turns invisible until she attacks or casts a spell, or until her concentration ends (as if concentrating on a spell). While invisible, she leaves no physical evidence of her passage, so she can be tracked only by magic. Any equipment she wears or carries is invisible with her.