Mistborn · Magic system

Feruchemical Metalminds

Also known as Feruchemical Metalmind, Feruchemical Metals, Feruchemist warrior metalminds

Magic system

Expandable metal braces/rings/bracelets/bracers/piercings (e.g., unconnected on one side for pewter/iron, thin heavy iron/pewter ankle bracelets, small tin/copper finger rings, large coppermind arm bracers) worn on body; store physical/mental attributes like strength (bulging muscles), weight (crushing heaviness), warmth (body heat), senses, speed; body transforms dramatically without loose skin; filled by Feruchemists then tapped for power

Type: Magic system
First appears: Book 2 · Ch. 12
Books: 2

Feruchemical metalminds evolve from conspicuous, wearable jewelry in The Well of Ascension to concealed surgical implants by The Lost Metal, reflecting both technological advancement and the need for secrecy. Initially appearing as expandable metal braces, rings, and bracers that visibly alter the wearer's body, these devices later become hidden beneath the skin, allowing Feruchemists to store and tap physical and mental attributes without detection. This transformation marks a shift from overt displays of Feruchemical power to covert applications in a changing world.

Evolution

BOOK 2The Well of Ascension
Expandable metal braces/rings/bracelets/bracers/piercings (e.g., unconnected on one side for pewter/iron, thin heavy iron/pewter ankle bracelets, small tin/copper finger rings, large coppermind arm bracers) worn on body; store physical/mental attributes like strength (bulging muscles), weight (crushing heaviness), warmth (body heat), senses, speed; body transforms dramatically without loose skin; filled by Feruchemists then tapped for power
BOOK 4The Lost Metal (The Mistborn Saga)
Metalmind surgically embedded beneath the skin for storing and tapping Feruchemical attributes. Hidden implant rather than visible jewelry.