Creature Reference Back to Creatures

Myrmex

Medium · Elemental · CR 5 · Neutral Good

Source. Tome of Beasts 3

15 (natural armor)

90 (12d8+36)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

WIS

CHA

-1

Overview

Category Monsters

Size Medium

Type Elemental

Alignment Neutral Good

XP 1800

Initiative Bonus +1

Movement

Walk 40 ft (12.2 m)

Swim 20 ft (6.1 m)

Climb 40 ft (12.2 m)

Burrow 40 ft (12.2 m)

Crawl 20 ft (6.1 m)

Senses

Blindsight 60 ft (18.3 m)

Passive Perception 15

Skills

Perception +2

Languages

understands Terran but can't speak

Resistances & Immunities

Damage Resistances

poison; nonmagic B/P/S attacks

Condition Immunities

exhaustion, paralyzed, petrified, poisoned, prone, unconscious

Traits

Elemental Nature

Doesn’t require air food drink or sleep.

Keen Smell

Advantage: smell Wis (Percept) checks.

Limited Telepathy

Magically transmit simple messages and images to any creature within 120' of it that can understand a language. This telepathy doesn’t allow receiving creature to telepathically respond.

Stone Walk

Difficult terrain composed of earth or stone doesn’t cost the myrmex extra movement.

Bonus Actions

Earth Manipulation

Can manipulate and move earth within 30' of it that fits within a 5 ft. cube. This manipulation is limited only by its imagination but it often includes creating caricatures of creatures to tell stories of travels or etching symbols to denote dangerous caverns or similar markers for those in the colony. It can also choose to make the ground within 10 ft. of it difficult terrain or to make difficult terrain normal if the ground is earth or stone. Changes caused by Earth Manipulation are permanent.

About Myrmex

Myrmex is a medium elemental with a Challenge Rating of 5. It has a neutral good alignment.

In combat, this creature maintains an Armor Class of 15 and possesses 90 hit points (derived from 12d8+36).

Myrmex has communication capabilities including understands Terran but can't speak. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Myrmex

2 tips available

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

Burrowing Tactics: This creature can burrow at 40 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.
Climbing Advantage: This creature can climb at 40 ft. It can use walls and ceilings for tactical positioning. Consider using 'Spider Climb' negation or fighting in open areas without vertical surfaces.

Player Guide: Facing Myrmex

2 strategies available

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

Burrowing Defense: This creature can burrow at 40 ft! It can ambush from underground. Use 'Earthbind', create difficult terrain, or fight on hard surfaces. 'Stone Shape' can seal burrows.
Climbing Defense: This creature can climb at 40 ft! It can use walls and ceilings for surprise attacks. Fight in open areas without vertical surfaces. 'Spider Climb' negation spells can help.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 5.

Solo Encounter:

A single character of level 7 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 3,000 XP
Hard: 4,500 XP
Deadly: 6,000 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 Myrmex?: Myrmex has a Challenge Rating of 5, making it appropriate for parties of level 5.0.
What type of creature is Myrmex?: Myrmex is a Medium Elemental, which affects how certain spells and abilities interact with it.
What languages does Myrmex speak?: Myrmex can communicate in understands Terran but can't speak.