Mimic

Mimics are a type of Dungeon Mob that rarely take the place of secret chests in The Catacombs dungeon. They can appear on The Catacombs - Floor VI and above. They have varying health from to. In Master Mode, they have up to

Drops

 * Mimic Fragment

Trivia

 * When Mimics were first added at the release of Catacombs Floor 6, they can accidentally spawn in any Catacombs floor, even the Catacombs Entrance. They also have the same health as the ones in Floor 6. It was then later patched and can only spawn in Floor 6 and higher.
 * They are likely a reference to mimics in the game Terraria.