Creature Reference Back to Creatures

Adult Rime Worm

Large · Elemental · CR 6 · Neutral

Source. Tome of Beasts

15 (natural armor)

105 (10d10+50)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

-2

WIS

CHA

-4

Overview

Category Monsters

Size Large

Type Elemental

Alignment Neutral

XP 2300

Initiative Bonus +2

Movement

Walk 30 ft (9.1 m)

Swim 30 ft (9.1 m)

Climb 15 ft (4.6 m)

Burrow 30 ft (9.1 m)

Crawl 15 ft (4.6 m)

Senses

Darkvision 200 ft (61 m)

Passive Perception 12

Saving Throws

Strength +8 Constitution +8

Languages

Resistances & Immunities

Damage Immunities

cold, necrotic

Environments

Arctic or Tundra Caves Coast Desert Forest or Jungle Grassland or Plains Hills Laboratory Lake Mountain Ocean Ruins Sewer Shadowfell The Abyss Astral Plane Elysium Ethereal Plane Feywild Hell Material Plane Plane of Air Plane of Earth Plane of Fire Plane of Water Swamp or Marsh Temple Badlands Tomb Underworld Urban

Traits

Born of Rime

A rime worm can breathe air or water with equal ease.

Ringed by Ice and Death

A rime worm is surrounded by an aura of cold, necrotic magic. At the start of the rime worm's turn, enemies within 5 feet take 2 (1d4) cold damage plus 2 (1d4) necrotic damage. If two or more enemies take damage from the aura on a single turn, the rime worm's black ice spray recharges immediately.

Actions

Black Ice Spray

Recharge 5–6

The rime worm sprays slivers of ice in a line 30 feet long and 5 feet wide. All creatures in the line take 26 (4d12) necrotic damage and are blinded; a successful DC 15 Constitution saving throw prevents the blindness. A blinded creature repeats the saving throw at the end of its turn, ending the effect on itself with a successful save.

Devour

+8 to hit, reach 5 ft (1.5 m). Hit: 2d12 cold damage.

Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 18 (2d12 + 5) slashing damage. If the target was grappled by the rime worm, it takes an additional 13 (2d12) cold damage.

Multiattack

The rime worm makes two tendril attacks.

Tendril

+8 to hit, reach 10 ft (3 m). Hit: 1d6 slashing damage.

Melee Weapon Attack. +8 to hit, reach 10 ft., one target. Hit: 8 (1d6 + 5) slashing damage. If both tendril attacks hit the same target in a single turn, that target is grappled (escape DC 15). The rime worm can grapple one creature at a time, and it can't use its tendril or devour attacks against a different target while it has a creature grappled.

About Adult Rime Worm

Adult Rime Worm is a large elemental with a Challenge Rating of 6. It has a neutral alignment.

In combat, this creature maintains an Armor Class of 15 and possesses 105 hit points (derived from 10d10+50).

Adult Rime Worm has communication capabilities including -. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Adult Rime Worm

3 tips available

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

Burrowing Tactics: This creature can burrow at 30 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 30 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.
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 Adult Rime Worm

3 strategies available

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

Burrowing Defense: This creature can burrow at 30 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 30 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.
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 6.

Solo Encounter:

A single character of level 9 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 4,200 XP
Hard: 6,300 XP
Deadly: 8,400 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 Adult Rime Worm?: Adult Rime Worm has a Challenge Rating of 6, making it appropriate for parties of level 6.0.
What type of creature is Adult Rime Worm?: Adult Rime Worm is a Large Elemental, which affects how certain spells and abilities interact with it.
What languages does Adult Rime Worm speak?: Adult Rime Worm can communicate in -.