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Sathaq Worm

Huge · Elemental · CR 10 · Neutral Evil

Source. Tome of Beasts

16 (natural armor)

172 (15d12+75)

Ability Scores

Core attributes and their modifiers.

STR

DEX

-2

CON

INT

-3

WIS

CHA

-1

Overview

Category Monsters

Size Huge

Type Elemental

Alignment Neutral Evil

XP 5900

Initiative Bonus -2

Movement

Walk 20 ft (6.1 m)

Swim 20 ft (6.1 m)

Climb 10 ft (3 m)

Burrow 20 ft (6.1 m)

Crawl 10 ft (3 m)

Senses

Tremorsense 60 ft (18.3 m)

Passive Perception 15

Skills

Perception +5 Stealth +2

Languages

understands Deep Speech and Terran, but can't speak

Resistances & Immunities

Damage Immunities

acid, poison

Damage Resistances

fire; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Vulnerabilities

thunder

Condition Immunities

exhaustion, paralyzed, petrified, poisoned, unconscious

Environments

Caves Desert Ruins Swamp or Marsh Underworld

Traits

Agonizing Aura

The sathaq worms' presence induces pain in creatures native to the Material Plane. Any creature that starts its turn within 30 feet of the sathaq worm must make a DC 17 Fortitude saving throw. On a failed save, the creature is poisoned until the start of its next turn. If a creature's saving throw succeeds, it is immune to the sathaq worm's Agonizing Aura for the next 24 hours.

Earth Glide

The sathaq worm can burrow through nonmagical, unworked earth and stone. While doing so, the elemental doesn't disturb the material it moves through.

Earthen Camoflage

The sathaq worm's stealth bonus is increased to +6 in sand, mud, or dirt.

Siege Monster

The sathaq worm deals double damage to objects and structures.

Actions

Bite

+10 to hit, reach 10 ft (3 m). Hit: 4d8 acid damage.

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 24 (4d8 + 6) piercing damage. If the target is a Large or smaller creature, it must succeed on a DC 18 Dexterity saving throw or be swallowed by the sathaq worm. A swallowed creature is blinded and restrained, has total cover against attacks and other effects outside the worm, and takes 7 (2d6) bludgeoning damage plus 7 (2d6) slashing damage plus 7 (2d6) acid damage at the start of each of the sathaq worm's turns. The sathaq worm can have only one creature swallowed at a time. If the sathaq worm takes 20 damage or more on a single turn from a creature inside it, the sathaq worm must succeed on a DC 15 Constitution saving throw at the end of that turn or regurgitate the swallowed creature, which falls prone in a space within 5 feet of the sathaq worm. If the sathaq worm dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 10 feet of movement, exiting prone.

About Sathaq Worm

Sathaq Worm is a huge elemental with a Challenge Rating of 10. It has a neutral evil alignment.

In combat, this creature maintains an Armor Class of 16 and possesses 172 hit points (derived from 15d12+75).

Sathaq Worm has communication capabilities including understands Deep Speech and Terran, but can't speak. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Sathaq Worm

2 tips available

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

Burrowing Tactics: This creature can burrow at 20 ft. It can ambush from underground or escape combat by digging. Use 'Earthbind' or create difficult terrain to limit burrowing. Consider fighting in areas without soft ground.
Aquatic Combat: This creature can swim at 20 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.

Player Guide: Facing Sathaq Worm

2 strategies available

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

Burrowing Defense: This creature can burrow at 20 ft! It can ambush from underground. Use 'Earthbind', create difficult terrain, or fight on hard surfaces. 'Stone Shape' can seal burrows.
Aquatic Combat Defense: This creature can swim at 20 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 10.

Solo Encounter:

A single character of level 13 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 11,000 XP
Hard: 16,500 XP
Deadly: 22,000 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 Sathaq Worm?: Sathaq Worm has a Challenge Rating of 10, making it appropriate for parties of level 10.0.
What type of creature is Sathaq Worm?: Sathaq Worm is a Huge Elemental, which affects how certain spells and abilities interact with it.
What languages does Sathaq Worm speak?: Sathaq Worm can communicate in understands Deep Speech and Terran, but can't speak.