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Coven Sea Hag

Medium · Fey · CR 4 · Chaotic Evil

Source. Monstrous Menagerie

75 (10d8+30)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

WIS

CHA

Overview

Category Monsters

Size Medium

Type Fey

Alignment Chaotic Evil

XP 1100

Initiative Bonus +1

Movement

Walk 30 ft (9.1 m)

Swim 40 ft (12.2 m)

Climb 15 ft (4.6 m)

Crawl 15 ft (4.6 m)

Senses

Darkvision 60 ft (18.3 m)

Passive Perception 11

Saving Throws

Constitution +5 Wisdom +3

Skills

Arcana +3 Deception +5 Insight +3

Languages

Aquan, Common, Giant

Traits

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

Actions

Claws

+5 to hit, reach 5 ft (1.5 m). Hit: 2d6+3 slashing damage.

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.

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.

Multiattack

The hag attacks twice with its claws.

Bonus Actions

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.

About Coven Sea Hag

Coven Sea Hag is a medium fey with a Challenge Rating of 4. It has a chaotic evil alignment.

In combat, this creature maintains an Armor Class of 14 and possesses 75 hit points (derived from 10d8+30).

Coven Sea Hag has communication capabilities including Aquan, Common, Giant. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Coven Sea Hag

3 tips available

When using Coven Sea Hag in your D&D 5e campaign, consider these tactical approaches:

Flight Control Strategy: Target flying creatures with spells like 'Hold Person', 'Web', or 'Grease' to ground them. Without flight restriction, they can escape melee range easily. Consider area denial spells below their flight altitude to force them into disadvantageous positions.
Aquatic Combat: This creature can swim at 40 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.
Lightning Damage Awareness: Lightning attacks often have long range and high speed. Advise players to use cover and avoid metal armor/weapons. Water surfaces amplify lightning damage - avoid fighting near water.

Player Guide: Facing Coven Sea Hag

3 strategies available

When your party encounters this creature, keep these strategies in mind:

Counter Flight Advantage: This creature can fly! Use ranged attacks, reach weapons, or spells like 'Thunderwave' to push it away. Consider 'Gust of Wind' or 'Earthbind' to ground it. Melee characters need fly speed or flight magic to engage.
Aquatic Combat Defense: This creature can swim at 40 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.
Lightning Damage Protection: This creature deals lightning damage! Avoid metal armor and weapons. Use cover and avoid water surfaces. 'Iron Skin' or 'Protection from Energy' can help.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 4.

Solo Encounter:

A single character of level 6 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 2,000 XP
Hard: 3,000 XP
Deadly: 4,000 XP

Based on D&D 5e Dungeon Master's Guide encounter building guidelines. CR roughly equals party level for medium encounters.

Frequently Asked Questions

What is the challenge rating of Coven Sea Hag?: Coven Sea Hag has a Challenge Rating of 4, making it appropriate for parties of level 4.0.
What type of creature is Coven Sea Hag?: Coven Sea Hag is a Medium Fey, which affects how certain spells and abilities interact with it.
What languages does Coven Sea Hag speak?: Coven Sea Hag can communicate in Aquan, Common, Giant.