Haunter of the Thalassic Veil

17 hours ago by Admin - Monsters

An unsettling presence drifts through the misty boundaries between the material plane and the ethereal realms. This spectral creature appears as a nebulous figure wreathed in shifting shades of blue and green, resembling silken threads of water and light. Glowing orbs flicker within its form, hinting at the countless memories of mariners lost to time. Its tendency to draw wanderers into an illusory world of watery depths makes it a menace to those who find themselves lost in its domain. As it approaches, an air of melancholy wraps around it, with the haunting echoes of the sea whispering the last words of those who sailed before.

Creature Type: Undead
Challenge Rating: 6 (2,300 XP)
Armor Class: 15 (natural armor)
Hit Points: 105 (14d10 + 28)
Speed: 0 ft., fly 40 ft. (hover)

Saving Throws: Dex +7, Wis +8, Cha +9
Skills: Arcana +6, Deception +9, Insight +8, Stealth +7
Damage Resistances: Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities: Poison, Psychic
Condition Immunities: Charmed, Deafened, Frightened, Paralyzed, Poisoned
Senses: Darkvision 60 ft., Passive Perception 12
Languages: Understands Common and Aquan but cannot speak
Challenge Rating: 6 (2,300 XP)
Proficiency Bonus: +3

Unique Ability: Echoing Illusion
As an action, the creature can target up to three creatures within 30 feet that it can see. Each target must succeed on a DC 15 Wisdom saving throw or become entranced by a haunting illusion. Affected targets see a vision of their deepest fear or lost memory within a tidal wave, causing them to be incapacitated for 1 minute. The targets can repeat the saving throw at the end of each of their turns, ending the effect on a success.

Actions:

• Multiattack: The creature can make two Spectral Claw attacks.
• Spectral Claw: Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 3) necrotic damage.

Rejuvenation: If the creature is destroyed, it can reform in 24 hours in any body of water within its haunting grounds, unless its phylactery is also destroyed.

Legendary Actions:
The creature can take three legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The creature regains spent legendary actions at the start of its turn.

• Haunting Whispers: The creature targets one creature it can see within 60 feet of it. The target must make a DC 15 Wisdom saving throw or take 10 (3d6) psychic damage and be frightened until the end of its next turn.
• Dimensional Drift (Costs 2 Actions): The creature magically reappears in an unoccupied space it can see within 60 feet of its current location.
• Drowning Grasp (Costs 3 Actions): The creature makes one Spectral Claw attack against a creature within 10 feet. On a hit, the target must succeed on a DC 15 Constitution saving throw or be incapacitated until the end of their next turn, as they struggle to breathe in the phantom water surrounding them.