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Thuellai

Huge · Elemental · CR 12 · Chaotic Neutral

Source. Tome of Beasts 1 (2023 Edition)

161 (14d12 + 70)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

WIS

CHA

Overview

Category Monsters

Size Huge

Type Elemental

Alignment Chaotic Neutral

XP 8400

Initiative Bonus +7

Movement

Walk 100 ft (30.5 m)

Swim 50 ft (15.2 m)

Climb 50 ft (15.2 m)

Crawl 50 ft (15.2 m)

Senses

Darkvision 60 ft (18.3 m)

Passive Perception 14

Saving Throws

Intelligence +4 Wisdom +4 Charisma +6

Skills

Perception +4

Languages

Common, Dwarvish, Primordial

Resistances & Immunities

Damage Immunities

poison

Damage Resistances

lightning, thunder; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Vulnerabilities

fire

Condition Immunities

exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious

Traits

Chilling Presence

At the start of each of the thuellai’s turns, each creature within 15 feet of it must succeed on a DC 17 Constitution saving throw or take 7 (2d6) cold damage. For each minute a creature spends within 15 feet of the thuellai, it must succeed on a DC 17 Constitution saving throw or suffer one level of exhaustion from cold exposure. Unprotected, nonmagical flames within 15 feet of the thuellai are extinguished. Any spells of 3rd level or lower that provide resistance to cold damage and that are within 15 feet of the thuellai immediately end. Water freezes if it remains within 15 feet of the thuellai for at least 1 minute.

Elemental Nature

The thuellai doesn’t require air, food, drink, or sleep.

Snowsight

The thuellai can see through areas obscured by snowfall, sleet, rain, and other wintry precipitation without penalty.

Actions

Freezing Breath

Recharge 5–6

The thuellai exhales an icy blast in a 60-foot cone. Each creature in the area must make a DC 17 Dexterity saving throw, taking 49 (14d6) cold damage on a failed save, or half as much damage on a successful one.

Icy Claw

+10 to hit, reach 10 ft (3 m). Hit: 2d8+6 plus 3d6 cold damage.

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 15 (2d8 + 6) slashing damage plus 10 (3d6) cold damage.

Multiattack

The thuellai makes three Icy Claw attacks.

About Thuellai

Thuellai is a huge elemental with a Challenge Rating of 12. It has a chaotic neutral alignment.

In combat, this creature maintains an Armor Class of 17 and possesses 161 hit points (derived from 14d12 + 70).

Thuellai has communication capabilities including Common, Dwarvish, Primordial. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Thuellai

1 tips available

When using Thuellai in your D&D 5e campaign, consider these tactical approaches:

Cold Damage Strategy: Cold-based attacks can slow or freeze. Prepare 'Heat Metal' or fire spells as countermeasures. Ice terrain can be used to create difficult terrain for melee characters.

Player Guide: Facing Thuellai

1 strategies available

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

Cold Damage Protection: This creature deals cold damage! Get cold resistance or use fire spells. Avoid water surfaces - they can freeze and create difficult terrain. 'Heat Metal' can counter cold.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 12.

Solo Encounter:

A single character of level 16 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 15,600 XP
Hard: 23,400 XP
Deadly: 31,200 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 Thuellai?: Thuellai has a Challenge Rating of 12, making it appropriate for parties of level 12.0.
What type of creature is Thuellai?: Thuellai is a Huge Elemental, which affects how certain spells and abilities interact with it.
What languages does Thuellai speak?: Thuellai can communicate in Common, Dwarvish, Primordial.