Coven Sea Hag

Amphibious. The hag can breathe air and water.

Curse. A creature that makes a bargain with the hag is magically cursed for 30 days. While it is cursed, the target automatically fails saving throws against the hags scrying and geas spells, and the hag can cast control weather centered on the creature.

Innate Spellcasting. The hags innate spellcasting ability is Charisma (spell save DC 13). It can innately cast the following spells, requiring no material components: At will: dancing lights, disguise self, 1/day: control weather, geas, scrying

Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 10 (2d6 + 3) slashing damage.

Death Glare (Gaze). One frightened creature within 30 feet makes a DC 11 Wisdom saving throw. On a failed saving throw the creature drops to 0 hit points. On a success the creature takes 7 (2d6) psychic damage.

Multiattack. The hag attacks twice with its claws.

Lightning Blast (Recharge 5-6). An 80-foot-long 5-foot-wide lightning bolt springs from the hags extended claw. Each creature in the area makes a DC 13 Dexterity saving throw taking 21 (6d6) lightning damage on a failed save or half damage on a success.

Horrific Transformation. The hag briefly takes on a terrifying form or reveals its true form. Each creature within 30 feet that can see the hag makes a DC 11 Wisdom saving throw. A creature under the hags curse automatically fails this saving throw. On a failure, the creature is frightened until the end of its next turn. If a creatures saving throw is successful, it is immune to the hags Horrific Transformation for 24 hours.