Actions

Multiattack. The deaths hag makes two claw attacks.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target.
Hit: 13 (2d8 + 4) slashing damage plus 10 (3d6) necrotic damage.

Soul Rend (Recharge 5–6).
The deaths hag targets one creature she can see within 30 feet. The target must make a DC 15 Constitution saving throw, taking 28 (6d8) necrotic damage on a failed save, or half as much on a success.
If this damage reduces the creature to 0 hit points, the hag regains 10 hit points and gains advantage on attack rolls until the end of her next turn.

Reactions

Mock Death
When a creature the hag can see drops to 0 hit points, she can force one creature of her choice within 30 feet to make a DC 15 Wisdom saving throw or be frightened until the end of its next turn.