Carbon nanotubes are a rare and valuable material that is produced by a secret process known only to a few alchemists and engineers. They are made of tiny tubes of carbon atoms that have been magically infused with various properties, such as strength, durability, flexibility, conductivity, and biocompatibility. Carbon nanotubes have many uses, such as in weapons, armor, prosthetics, and devices.
Karmin’s skin and sword are made of carbon nanotubes, and they are among the finest examples of dark arcane tech. She obtained them from a mysterious benefactor who offered to help her after she lost her arms in a battle with a monster. She agreed to the deal, not knowing the full extent of the consequences.