Homebrew Mimic Species Details

Physical Description

The "true" form of a mimic is an amorphous, brown mass with four beady red eyes and one large sharp-toothed mouth. A mimic can extend pseudopods, up to four at once, to move, manipulate, or even wield objects while in this form.

When a mimic takes the form of an object, it shapes its mass as appropriate and changes its texture; since it actually has little mass of its own, though, even including its stomachs, it can contain a surprising amount of stuff in either form. Intelligent mimics commonly carry their possessions within their form, rather than dragging a sack or trying to carry a backpack on nonexistent shoulders.

History

Intelligent mimics are rare enough that few or none have ever merited recording. The reputation that mimics have for disguising themselves tends to cause distrust and suspicion among other people, but people overestimate the average intelligent mimic's capability for actual subterfuge.

Society

How well or poorly a given mimic adapts to society largely depends upon the society; intelligent mimics tend to be curious, easygoing, and somewhat naive, at least for awhile. How the mimic is treated by other creatures affects a lot about how it decides it feels about them once it really gets the hang of being around people.

Mimic Traits

A more intelligent specimen of a well-known species of shapeshifting predators.

Ability Score Increase - Your Strength score increases by 2, and your Constitution score increases by 1.
Age - Mimics reach what passes for adulthood at around 10, but can live as long as a century.
Alignment - Mimics tend toward neutrality, but may find purpose and inspiration in whatever culture or person they encounter and gain any alignment.
Size - A mimic's true form is amorphous, but can draw itself up to a height of about 5 feet. Your size is Medium.
Speed - Your base walking speed is 25 feet.

Mimic Traits

Shapechange, Adhesive, Amorphous, Prone Immunity, Bite

Darkvision.

 You can see in dim light within 60 feet of you as if it were bright light, and darkness as if it were dim light. You can't discern color in darkness, only shades of grey.

Shapechanger.

You can use your action to polymorph into an inanimate object that you have seen, or back into your true form. Your statistics remain the same in each form, but you can only assume the shape of an object of Small or Medium size (such as a chest, chair, door or table). While you remain motionless, you are indistinguishable from that object. Any equipment you are wearing or carrying isn't transformed, but is contained within you as long as your shape has the dimensions to accommodate it (For instance, it's easier to contain a sword in a table than in a footstool). You revert to your true form if you die.

Adhesive.

Whenever a Large or smaller creature touches you while you are in the shape of an object, you can use your reaction to attempt to grapple that creature.

Amorphous.

You cannot benefit from armor, though you can use a shield. Your Armor Class is equal to 10 + your Dexterity modifier + your Constitution modifier.

Condition Immunity.

You are immune to the prone condition.

Bite.

You are proficient with your bite attack, which deals 1d4 piercing damage and 1d4 acid damage.

Ability Score Increase.

Your Strength score increases by 2, and your Constitution score increases by 1.

Languages

Common plus one other