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Cave Mimic

Gargantuan · Monstrosity · CR 7 · Neutral

Source. Tome of Beasts 3

13 (natural armor)

174 (12d20+48)

Ability Scores

Core attributes and their modifiers.

STR

DEX

-1

CON

INT

-3

WIS

CHA

Overview

Category Monsters

Size Gargantuan

Type Monstrosity

Alignment Neutral

XP 2900

Initiative Bonus -1

Movement

Walk 10 ft (3 m)

Swim 5 ft (1.5 m)

Climb 5 ft (1.5 m)

Burrow 20 ft (6.1 m)

Crawl 5 ft (1.5 m)

Senses

Darkvision 60 ft (18.3 m)

Tremorsense 60 ft (18.3 m)

Passive Perception 14

Skills

Perception +1

Resistances & Immunities

Damage Immunities

acid

Condition Immunities

prone

Traits

Adhesive (Object or Terrain Form)

Adheres to anything that touches it. Creature adhered is also grappled (escape DC 15). Ability checks to escape: disadvantage. It can choose for creature to not be affected.

False Appearance (Object or Terrain Form)

While motionless it is indistinguishable from an ordinary object or terrain feature.

Grappler

Advantage on attack rolls vs. any creature grappled by it.

Object Mimicry (Object or Terrain Form)

Shape minor pseudopods into Med or smaller objects. Creature that sees one can tell it is an imitation with DC 15 Wis (Insight) check. Creature with half its body in contact with object (ex: sitting on “chair”) is subject to Adhesive.

Stretched Form (Terrain Form)

Occupy another’s space vice versa.

Tunneler

Can burrow through solid rock at half its burrow speed and leaves a 15-foot-diameter tunnel in its wake.

Bonus Actions

Change Shape

Into Gargantuan object or stretches out as terrain up to 35 ft. cube or back to true amorphous form. Stats same. Items worn/carried not transformed. Reverts on death.

About Cave Mimic

Cave Mimic is a gargantuan monstrosity with a Challenge Rating of 7. It has a neutral alignment.

In combat, this creature maintains an Armor Class of 13 and possesses 174 hit points (derived from 12d20+48).

GM Tips: Using Cave Mimic

1 tips available

When using Cave Mimic 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.

Player Guide: Facing Cave Mimic

1 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.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 7.

Solo Encounter:

A single character of level 10 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 5,600 XP
Hard: 8,400 XP
Deadly: 11,200 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 Cave Mimic?: Cave Mimic has a Challenge Rating of 7, making it appropriate for parties of level 7.0.
What type of creature is Cave Mimic?: Cave Mimic is a Gargantuan Monstrosity, which affects how certain spells and abilities interact with it.