An envious creature, the bust mimic always wanted a face. Time and time again it found itself fascinated and jealous at the expressive bits of flesh its prey wore as it devoured them. It wasn't until it found its way to a cemetery that it discovered the likenesses cast in stone forever watching over the dead. The mimic took a fancy to this form and found that after a time it could even 'throw its voice', though only in crude mimicry (pardon the pun) of what it's heard before - and often slightly misremembered. Thus the voices produced are haunting, broken, and sinister in the graveyard fog. It also learned how to skitter quickly when not noticed, getting closer and closer to its prey before it found the greatest gift of all that came with having a face - a pronounced mouth.

Bust Mimic

Small monstrosity (shapechanger), neutral

Armor Class 14 (natural armor)

Hit Points 65 (10d6 + 30)

Speed 15ft

Str 18 Dex 10 Con 16 Int 7 Wis 14 Cha 11

Skills Stealth +4

Damage Immunities acid

Condition Immunities prone

Sensesdarkvision 60 ft., passive Perception 12

Languages -

Challenge 3 (700 XP)

Bite Your Head Off.

If the mimic hits a surprised creature with its Bite attack, it may use its bonus action to make another Bite Attack.

Shapechanger.

The mimic can use its action to polymorph into a granite bust or 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.

Adhesive (Object Form Only).

The mimic adheres to anything that touches it. A large or smaller creature adhered to the mimic is also grappled by it (escape DC 14). Ability checks made to escape this grapple have disadvantage.

False Appearance (Object Form Only).

While the mimic remains motionless, it is indistinguishable from an ordinary granite bust.

Get Ahead.

If no creature is looking at the mimic, its speed becomes 40ft and it may Shapechange as a bonus action.

Grappler.

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

Innate Spellcasting.

The mimic can innately cast Minor Illusion (spell save DC 12), requiring no material components. Its innate spellcasting ability is Wisdom. The mimic can only produce sounds it has heard with this spell, most often funeral poems, speeches, weeping, confessions etc.

Actions

Pseudopod.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) bludgeoning damage. If the mimic is in object form, the target is subjected to its Adhesive trait.

Bite.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) piercing damage plus 4 (1d8) acid damage.