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Dune Mimic

Huge · Monstrosity · CR 8 · Neutral

Source. Tome of Beasts 1 (2023 Edition)

13 (natural armor)

168 (16d12 + 64)

Ability Scores

Core attributes and their modifiers.

STR

DEX

-1

CON

INT

-1

WIS

CHA

Overview

Category Monsters

Size Huge

Type Monstrosity

Alignment Neutral

XP 3900

Initiative Bonus -1

Movement

Walk 15 ft (4.6 m)

Swim 7 ft (2.1 m)

Climb 7 ft (2.1 m)

Crawl 7 ft (2.1 m)

Senses

Darkvision 60 ft (18.3 m)

Tremorsense 30 ft (9.1 m)

Passive Perception 14

Skills

Perception +4

Resistances & Immunities

Damage Immunities

acid, fire

Condition Immunities

prone

Traits

Adhesive (Object or Terrain Form Only)

The dune mimic adheres to anything that touches it. A creature adhered to the dune mimic is also grappled by it (escape DC 15). Ability checks made to escape this grapple have disadvantage. The dune mimic can harden its outer surface, so only the creatures it chooses are affected by this trait.

False Appearance (Object or Terrain Form Only)

While the dune mimic remains motionless, it is indistinguishable from an ordinary sandy object or terrain feature.

Grappler

The dune mimic has advantage on attack rolls against any creature grappled by it.

Actions

Engulf

The dune mimic engulfs a Large or smaller creature grappled by it. The engulfed target is blinded, restrained, and unable to breathe, and it must succeed on a DC 15 Constitution saving throw at the start of each of the mimic's turns or take 10 (3d6) slashing damage, as the creature is lacerated by the mimic's sand-coated form. If the mimic moves, any engulfed creatures move with it. The mimic can have no more than two creatures engulfed at a time.

Multiattack

The dune mimic makes three Pseudopod attacks. It can replace one attack with a use of Engulf.

Pseudopod

+8 to hit, reach 15 ft (4.6 m). Hit: 3d8+5 bludgeoning damage.

Melee Weapon Attack: +8 to hit, reach 15 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage. If the dune mimic is in object or terrain form, the target is subjected to the mimic's Adhesive trait.

Bonus Actions

Change Shape

The dune mimic transforms into a Huge sand- or gravel-covered object, shapes itself into a sandy or rocky terrain feature no larger than a 20-foot cube or transforms back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

About Dune Mimic

Dune Mimic is a huge monstrosity with a Challenge Rating of 8. It has a neutral alignment.

In combat, this creature maintains an Armor Class of 13 and possesses 168 hit points (derived from 16d12 + 64).

GM Tips: Using Dune Mimic

2 tips available

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

Significant Threat: Challenging for parties of levels 5-10
Epic Potential: Consider legendary actions for memorable battles

Player Guide: Facing Dune Mimic

2 strategies available

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

Significant Threat: Prepare spells and resources
Team Coordination: Coordinate attacks and defenses

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 8.

Solo Encounter:

A single character of level 11 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 7,200 XP
Hard: 10,800 XP
Deadly: 14,400 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 Dune Mimic?: Dune Mimic has a Challenge Rating of 8, making it appropriate for parties of level 8.0.
What type of creature is Dune Mimic?: Dune Mimic is a Huge Monstrosity, which affects how certain spells and abilities interact with it.