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Sathaq Worm

Huge Elemental, neutral evil

Armor Class 16 (natural armor)

Hit Points 172 (15d12+75)

Speed 20 ft., burrow 20 ft., swim 20 ft.

STR

22 (+6)

DEX

6 (-2)

CON

20 (+5)

INT

5 (-3)

WIS

12 (+1)

CHA

9 (-1)

Saving Throws —

Skills Perception +5, Stealth +2

Damage Immunities acid, poison

Condition Immunities exhaustion, paralyzed, petrified, poisoned, unconscious

Senses tremorsense 60 ft., passive Perception 15

Languages understands Deep Speech and Terran, but can't speak

Challenge 10 (5,900 XP)

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.

Siege Monster. The sathaq worm deals double damage to objects and structures.

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

Actions

Bite. 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.

Reactions

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Legendary Actions

_This titanic worm’s rocky hide is rough and hard as stone. Its yawning gullet writhes with miniature worms like itself._ **Elemental Predators.** Sathaq worms are nightmarish predators from the Plane of Elemental Earth, 30 feet long and 10 feet thick, with rugged brown hide embedded with stones. They devour stone and flesh with equal ease. **Guts Filled with Larvae.** Sathaq worms are solitary; they approach each other only to mate. Their young incubate inside the worms’ gullets. Creatures they swallow are simultaneously digested by the parent worm and devoured by the larvae. **Painful Presence.** Ultrasonic noise and magical ripples that tear at flesh and bone make the very presence of a sathaq worm extremely uncomfortable for creatures of the Material Plane.

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Sathaq Worm

Actions

Reactions

Legendary Actions

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