Transmutation

Transmutation is the ability to transform a chemical element or an isotope into another chemical element, or transform objects between other complex materials.

This can have various applications,

This can also have various limitations, such as only being able to transform certain materials, or only being able to transform things into a particular material, or following the Laws of Conservation.

Users

 * Alchemists (Fullmetal Alchemist)
 * Lightweavers and Elsecallers ( The Stormlight Archive)