Allomancy is a magical system featured in the Mistborn series by Brandon Sanderson. It allows individuals, known as Allomancers, to ingest and "burn" specific metals to gain various powers. Each metal grants a unique ability, such as enhanced strength, emotional manipulation, or the ability to push or pull on metal objects. Allomancers are categorized into two groups: Mistings, who can use only one metal, and Mistborn, who can use all known Allomantic metals. This system plays a crucial role in the series' plot, influencing the characters' abilities and the dynamics of power within the world.