metalmind

In the Mistborn series, metalminds are introduced in the Final Empire era as essential Feruchemical tools—pieces of metal that Feruchemists use as batteries to store physical and mental attributes like strength, speed, or senses, each type named for its specific metal such as tinmind or steelmind. First prominently featured in The Hero of Ages, they play a crucial role in the survival strategies of key Feruchemists amid the escalating cataclysm. Their utility evolves as part of the broader magic system, blending with Allomancy through Hemalurgy to empower hybrid magic users, and culminates in the post-Catacendre era where Feruchemy's metalmind mechanics underpin innovative applications in the Alloy of Law and beyond.