In the Dungeons & Dragons fantasy role-playing game, the mimic is a type of fictional monster. It is portrayed as being able to change its shape to disguise its body as an inanimate object, commonly a chest. The mimic uses a powerful adhesive that holds fast to creatures that touch it, allowing the mimic to beat its victims with its powerful pseudopods. The mimic was introduced in the first edition Advanced Dungeons & Dragons game's original Monster Manual. The mimic has appeared in subsequent editions. Several variants of the creature have been introduced, with a variety of abilities and sizes.
Mimic Chests can vary with what's inside, just let me know your preference.