Sea Hag

Medium fey, chaotic evil

Armor Class 14 (natural armor)

Hit Points 52 (7d8+21)

Speed 30ft., swim 40ft.

Senses darkvision 60ft., passive Perception 11

Languages Aquan, Common, Giant

Challenge 2 (450 XP)

Traits

Amphibious

The hag can breathe air and water.

Horrific Appearance

Any humanoid that starts its turn within 30ft of the hag and can see the hag's true form must make a DC 11 Wisdom saving throw. On a failed save, the creature is frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if the hag is within line of sight, 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 Horrific Appearance for the next 24 hours.

Unless the target is surprised or the revelation of the hag's true form is sudden, the target can avert its eyes and avoid making the initial saving throw. Until the start of its next turn, a creature that averts its eyes has disadvantage on attack rolls against the hag.

Actions

Claws

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

Death Glare

The hag targets one frightened creature she can see within 30ft of her. If the target can see the hag, it must succeed on a DC 11 Wisdom saving throw against this magic or drop to 0 hit points.

Illusory Appearance

The hag covers herself and anything she is wearing or carrying with a magical illusion that makes her look like an ugly creature of her general size and humanoid shape. The effect 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 no claws, but someone touching her hand might feel the claws.

Otherwise, a creature must take an action to visually inspect the illusion and succeed on a DC 16 Intelligence (Investigation) check to discern that the hag is disguised.