Bite

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) piercing damage plus 5 (2d4) necrotic damage.

Claw

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage plus 5 (2d4) necrotic damage.

Reconfiguring Curse

The mirror hag curses one creature she can see within 60 feet of her, corrupting its form. The target must make a DC 15 Constitution saving throw. On a success, the target is immune to the hag's Reconfiguring Curse for the next 24 hours. On a failure, the target is cursed, suffering one of the following effects of the hag's choice: Disfigured. The target’s skin erupts with growths and lesions, and it has disadvantage on all Charisma checks made to influence Humanoids, except for Intimidation. Sickly. The target becomes frail and unhealthy, and it has disadvantage on Constitution saving throws. It regains only half its lost hp at the end of a long rest, and it halves the result of any Hit Dice rolled to restore hp during a short rest. Twisted. The target’s limbs and spine become bent and clumsy. It has disadvantage on all Dexterity checks and Dexterity saving throws, and its speed is reduced by 10 feet. Withered. The target’s muscles atrophy, and it has disadvantage on all Strength checks and Strength saving throws.

Spellcasting

The mirror hag casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 15): At will: disguise self, ray of enfeeblement 1/day each: dispel magic, locate creature