An Allomancer is a person who possesses the ability to manipulate metals to gain various powers in the fictional universe of the Mistborn series by Brandon Sanderson. Allomancers can ingest and "burn" specific metals, each granting unique abilities, such as enhanced strength, emotional manipulation, or the power to push or pull on metal objects. In this world, Allomancers are categorized into two main groups: Mistings, who can only use one metal, and Mistborn, who can use all known Allomantic metals. This magical system plays a crucial role in the series' plot, influencing the balance of power and the dynamics between different factions.