Mirror Hag

Innate Spellcasting. the hag's innate spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks). She can innately cast the following spells, requiring no material components: at will: disguise self, inflict wounds (4d10), message, ray of enfeeblement 1/day each: detect thoughts, dispel magic, lightning bolt, locate creature, shillelagh, stinking cloud, teleport

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

Confounding Ugliness. When confronting a mirror hag at any range, a creature must make a choice at the start of each of its turns: either avert its eyes so that it has disadvantage on attack rolls against the hag until the start of its next turn, or look at the hag and make a DC 15 Constitution saving throw. Failure on the saving throw leaves the character stunned until the start of its next turn.

Multiattack. A mirror hag can use its Reconfiguring Curse and make one melee attack.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 21 (4d8 + 3) piercing damage, or 39 (8d8 + 3) piercing damage against a stunned target.

Quarterstaff. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.

Reconfiguring Curse. The mirror hag curses a living creature within 60 feet, giving it beastly or hideous features. The target of the reconfiguring curse must succeed on a DC 15 Constitution saving throw or take 1d6 Charisma damage. A successful save renders the target immune to further uses of that hag's curse for 24 hours.