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Yavalnoi

Size
Large
Type
Aberration
Challenge Rating
6
Source
Tome of Beasts 2
Alignment
Chaotic-Evil
Armor Class
16
Speeds
10, swim 40
Walking Speed
10
Swimming Speed
40
Strength Score
17
Dexterity Score
14
Constitution Score
20
Intelligence Score
12
Wisdom Score
16
Charisma Score
18
Saving Throws
Constitution, Wisdom
Skill Proficiencies
Perception
Languages Ref
Aquan, Primordial
Hit Points
126
Resistances
Resistant to Cold Damage
Languages
Aquan, Primordial

Large aberration, chaotic evil


Armor Class 16 (natural armor)

Hit Points 126 (12d10+60)

Speed 10 ft., swim 40 ft.


STR
17 (+3)
DEX
14 (+2)
CON
20 (+5)
INT
12 (+1)
WIS
16 (+3)
CHA
18 (+4)

Saving Throws Con +8, Wis +6

Skills Perception +6

Damage Resistances cold

Senses darkvision 90 ft., passive Perception 16

Languages Aquan, Primordial

Challenge 6 (2,300 XP)

Water Breathing. The yavalnoi can breathe only underwater.

Innate Spellcasting. The yavalnoi's innate spellcasting ability is Charisma (spell save DC 15). It can innately cast the following spells, requiring no material components.
At will: ray of enfeeblement, silent image
3/day: control water, slow

Actions

Multiattack. The yavalnoi makes three attacks: one with its bite, one with its claw, and one with its tail.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 14 (2d10 + 3) piercing damage.

Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) slashing damage.

Tail. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage.

Luminous Burst (Recharge 5-6). The anchor-shaped organ atop the yavalnoi's head emits a burst of blue light. Each hostile creature within 30 feet of the yavalnoi must succeed on a DC 15 Wisdom saving throw or be outlined in blue light for 1 minute. While outlined in blue light, a creature can't breathe underwater. This effect dispels spells such as water breathing and temporarily suppresses water breathing granted through magic items or a creature's natural physiology. In addition, the yavalnoi and creatures friendly to the yavalnoi have advantage on attack rolls against creatures outlined in blue light. A creature outlined in blue light can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Call of the Deep (1/Day). The yavalnoi magically calls 2d4 giant crabs or 1 giant octopus. The called creatures arrive in 1d4 rounds, acting as allies of the yavalnoi and obeying its spoken commands. The beasts remain for 1 hour, until the yavalnoi dies, or until the yavalnoi dismisses them as a bonus action.

Description

Rising up from the seafloor is a nightmarish creature resembling an obese mermaid with a wide, fluked tail, claws, and a humanoid head with a fish-like mouth and large, saucer-like, yellow eyes. An organ like the anchor of a boat emerges from its brow, shedding a pale blue light that glimmers off its iridescent crimson scales._
Monster Creator. Yavalnois are wicked aberrations capable of procreating with almost any creature from the sea, be it a Open Game License

Stat block from Tome of Beasts 2 (Kobold Press), Open Game Content used under the Open Game License 1.0a. Tome of Beasts 2. Copyright 2020 Open Design LLC; Authors Wolfgang Baur, Celeste Conowitch, Darrin Drader, James Introcaso, Philip Larwood, Jeff Lee, Kelly Pawlik, Brian Suskind, Mike Welham. It is not Geminaea material. See Legal.