Ahkiyyini, Vengeful Spirit of the Alaskan Rivers

Medium Undead, Neutral Evil

Armor Class 12 (Natural Armor)
Hit Points 97 (13d8 + 39)
Speed 30 ft., Swim 60 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	14 (+2)	16 (+3)	8 (-1)	14 (+2)	12 (+1)

Skills Perception +5
Damage Resistances Necrotic
Damage Immunities Poison
Condition Immunities Poisoned
Senses Darkvision 60 ft., Passive Perception 15
Languages understands the languages it knew in life but can’t speak

Challenge 5 (1,800 XP)

Water Bound. Ahkiyyini cannot venture more than 60 feet away from a body of water. If forced beyond this limit, it is incapacitated.

Innate Spellcasting. Ahkiyyini’s spellcasting ability is Wisdom (spell save DC 13). Ahkiyyini can innately cast the following spells, requiring no material components:

• At will: Control Water
• 3/day: Tidal Wave

Ethereal Sight. Ahkiyyini can see 60 feet into the Ethereal Plane when it is on the Material Plane.

Multiattack. Ahkiyyini makes two attacks: one with its spectral touch and one with its shoulder blade drumstick.

Spectral Touch. Melee Spell Attack: +5 to hit, reach 5 ft., one target. Hit: 16 (2d10 + 3) necrotic damage.

Shoulder Blade Drumstick. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (1d8 + 3) bludgeoning damage.

Dreadful Rhythm. Creatures within 30 feet of Ahkiyyini must succeed on a DC 13 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself with a success.

Legendary Resistance (1/Day). If Ahkiyyini fails a saving throw, it can choose to succeed instead.

Actions

Wail of the Abyss (Recharge 5-6). Ahkiyyini releases a haunting wail. Each creature within 30 feet of Ahkiyyini must make a DC 14 Wisdom saving throw or take 27 (6d8) psychic damage on a failed save, or half as much damage on a successful one.

Watery Grasp. Ahkiyyini targets one creature it can see within 60 feet of it. The target must succeed on a DC 14 Strength saving throw or be magically grappled. The grappled target is restrained and must make a DC 14 Constitution saving throw at the start of each of its turns, taking 14 (4d6) necrotic damage on a failed save, or half as much damage on a successful one. If the saving throw is successful, the effect ends.

Ahkiyyinni, the Water-Bound Spirit

Medium Undead (Incorporeal), Neutral Evil
CR: 7
XP: 3,200
Alignment: Neutral Evil
AC: 18 (touch 14, flat-footed 16)
HP: 97 (13d8+39)
Defensive Abilities: Incorporeal, DR 5/–, Energy Resistance (cold 10)
Immune: Death effects, Necromancy, Poison, Paralysis, Sleep, and Stunning
Speed: 30 ft., Swim 60 ft.
Init: +6

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Abilities

• STR: 16 (+3)
• DEX: 14 (+2)
• CON: —
• INT: 8 (-1)
• WIS: 14 (+2)
• CHA: 12 (+1)

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Saving Throws

• Fort: +5
• Ref: +8
• Will: +9

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Skills

• Perception +14
• Stealth +14
• Swim +24

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Senses

• Darkvision 60 ft., Blindsense (water) 60 ft., Passive Perception 14
• Languages: Understands languages it knew in life, but cannot speak.

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Special Qualities

• Incorporeal: Ahkiyyini cannot be harmed by non-magical weapons, and it can move through solid objects as though they were difficult terrain.
• Water Bound: Ahkiyyini cannot venture more than 60 feet from a body of water. If it is forced beyond this limit, it becomes incapacitated, unable to act or perceive its surroundings.
• Energy Resistance (Cold): Ahkiyyini has cold resistance 10.
• Ethereal Sight: Ahkiyyini can see 60 feet into the Ethereal Plane when it is on the Material Plane.
• Haunting Wail (Su): Ahkiyyini can emit an eerie wail, filled with the mournful cries of lost souls. This wail causes fear in those within 30 feet who fail a DC 17 Will save. A creature that fails is frightened for 1d4+1 rounds, while a creature that succeeds is shaken for 1 round. This is a mind-affecting fear effect.
• Dreadful Rhythm (Su): Ahkiyyini’s unearthly drumming causes all creatures within a 30-foot radius to make a DC 17 Will save or become frightened for 1 minute. Creatures that save are shaken for 1 round.

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Combat Abilities

• Multiattack: Ahkiyyini makes two attacks per round: one with its Spectral Touch and one with its Shoulder Blade Drumstick.
• Spectral Touch (Melee Weapon Attack):
  Attack: +9 to hit, Reach 5 ft., one target
  Damage: 2d10+3 necrotic damage
  Effect: Ahkiyyini’s touch saps the life force of its victim, draining strength and vitality.
• Shoulder Blade Drumstick (Melee Weapon Attack):
  Attack: +9 to hit, Reach 5 ft., one target
  Damage: 1d8+3 bludgeoning damage
  Effect: Ahkiyyini strikes with a drumstick formed from a large, frozen shoulder blade, wrapped in sinew and remnants of fur.
• Wail of the Abyss (Recharge 5–6) (Su):
  Ahkiyyini releases a horrific wail that shakes the very foundation of the air and water around it. Each creature within 30 feet must make a DC 19 Will save or take 6d8 psychic damage, or half on a successful save. The wail causes intense mental anguish, and creatures that fail the save also suffer 1d4 rounds of confusion (as the confusion spell).
• Watery Grasp (Su):
  Ahkiyyini targets one creature it can see within 60 feet. The target must succeed on a DC 17 Strength saving throw or be grappled by a spectral watery hand. The target is restrained and must make a DC 17 Constitution saving throw at the start of each of its turns, taking 2d6 necrotic damage on a failed save, or half as much damage on a successful one. A creature that succeeds on its initial Strength saving throw is free of the effect.
• Innate Spellcasting: Ahkiyyini’s spellcasting ability is Wisdom, with a DC 17 for its spells. It can cast the following spells innately (no material components required):
  • At Will: Control Water
  • 3/day: Tidal Wave

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Legendary Abilities

• Legendary Resistance (1/day): If Ahkiyyini fails a saving throw, it can choose to succeed instead.

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Tactics & Behavior

Ahkiyyini is a fearsome spirit, often appearing as an incorporeal wraith-like entity tied to bodies of water. It uses Dreadful Rhythm to create an aura of fear around it, disrupting enemy morale, while Spectral Touch and Shoulder Blade Drumstick serve as its primary means of direct attack. If it can separate enemies or create confusion, it will use its Wail of the Abyss to break apart groups and cause widespread psychic damage. Watery Grasp allows it to restrain a foe, causing ongoing necrotic damage while it debilitates its prey.

Ahkiyyini will retreat to water if it is at risk, making use of its Water Bound trait to slip back into safety. In combat, it strategically positions itself near water, where it can call on Control Water to further manipulate its environment, such as causing floods or using water to trap enemies in place.

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Environment

Ahkiyyini typically haunts watery or icy regions: lakes, frozen rivers, sunken temples, or abandoned shipwrecks. It appears at dusk or during storms, when the winds carry eerie wails from distant shores. Its presence is often heralded by unnatural waves or disturbances in the water, causing unnatural tides or even flooding in some places.