Drowned Regret of the Abyssal Trench

Emerging from the depths where light fails and the pulse of the ocean is but a whisper, this creature is a harbinger of sorrow and despair. Its form is a grotesque amalgamation of shadows and the forgotten vestiges of drowned souls, shrouded in tattered vestments of waterlogged fabric. Glowing, hollow eyes pierce through the darkness, harboring the weight of countless regrets. This entity prowls the abyssal trenches, luring those burdened by their unresolved remorse into its clutches, promising solace yet delivering doom. When it manifests in the wake of turbulent waters, the air grows heavy with a haunting melody that resonates within the hearts of its victims, compelling them to confront their deepest fears.


Creature Type: Undead
Alignment: Chaotic Neutral
Armor Class: 15 (natural armor)
Hit Points: 112 (15d10 + 30)
Speed: 0 ft., swim 60 ft.

STR DEX CON INT WIS CHA
16 (+3) 14 (+2) 14 (+2) 12 (+1) 18 (+4) 20 (+5)

Saving Throws: Wis +7, Cha +8
Damage Resistances: Necrotic, Psychic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Condition Immunities: Charmed, Frightened, Paralyzed
Senses: Blindsight 60 ft. (blind beyond this radius), Darkvision 120 ft., Passive Perception 15
Languages: Understands all languages it knew in life but cannot speak
Challenge: 7 (2,900 XP)
Proficiency Bonus: +3

Amorphous Form. The creature can move through a space as narrow as 1 inch wide without squeezing.

Eerie Resurgence. When the creature is reduced to 0 hit points, it makes a death saving throw. On a success, it reconstitutes itself with half its hit points at the start of its next turn.

Actions

Multiattack. The creature makes two Scourging Tentacle attacks.

Scourging Tentacle. Melee Weapon Attack: +8 to hit, reach 15 ft., one target. Hit: 18 (2d10 + 3) psychic damage, and the target must succeed on a DC 15 Wisdom saving throw or be afflicted by the Regretful Whisper condition until the end of its next turn. While under this condition, a creature has disadvantage on Wisdom saving throws.

Lament of the Abyss (Recharge 5–6). The creature unleashes a haunting wail that echoes through the waters. Each creature of its choice within 60 feet that can hear it must make a DC 15 Wisdom saving throw. On a failed save, the creature takes 27 (6d8) psychic damage and is paralyzed until the end of its next turn. On a successful save, the creature takes half damage and is not paralyzed.

Regretful Embrace (1/Day). The creature targets one creature within 60 feet that it can see. The target must make a DC 15 Charisma saving throw. On a failed save, the target is incapacitated for 1 minute as they are overwhelmed by visions of their past regrets. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.