Mercurial

Some of the most populous denizens of the Plane of Metal, mercurials are weird creatures of liquid metal known for changing their features, chemical compositions, and temperaments with equal frequency. Excitable, curious, and friendly, mercurials are quick to offer assistance to extraplanar beings, but their volatile personalities can make them unreliable allies.

Metal elementals can manifest in a wide variety of different forms, from shapeless amalgams of different metals to humanoid and beast-like monstrosities.

Metal Forms

Though metal elementals are made almost entirely of metal, most are composed of layers of different metals in tiny fragments, as complex as a body of flesh or plant matter. Many of these metals are rusted or decayed from the natural, slow entropy of the Plane of Metal.

Many Faces, Many Names

As immortal beings with comparatively short attention spans, mercurials invariably become bored with their current identities sooner or later and seek a change by adopting a new face and persona. To avoid confusion among friends and acquaintances, a mercurial's name typically consists not only of their current moniker, but a list of the last few names used, presented in chronological order as far back as the mercurial can remember.