Gozō

The Gozō (五臓, Five Viscera; English TV "Five Amplifying Organs") are a set of tools specifically crafted by the finest of Amegakure's blacksmiths in order to give Shuten a greater advantage when employing his elemental powers, noting their natural states to be quite weak in comparison to other Shinobi of his rank.

Trivia

 * The idea of the Gozō was initially crafted as a rework of the Gochinyorai based on the fact that one of Shuten's monikers, Shuten of the Five Phases (五象の手天, Gozō no Shuten; Literally meaning "Heavenly Hand of the Five Phenomena") has the romanization of Gozō, despite the meaning being entirely different.
 * The association of the elements to their respective internal viscera was made through the organs' functionality:
 * The liver was associated with the earth due to its storage and release of important sugars in the body, as well as its detoxification functions.
 * The lungs were associated with the air due to its heavy involvement in ventilation, respiration and gas exchange.
 * The kidney was associated with water due to its role in.
 * The heart was associated with lightning due to its manner of involving electrical impulses from one of its nodes, and the fact that it can be revitalized through electric currents as well.
 * The spleen was associated with fire due to its purification properties regarding red blood cells, something which fire is also associated with.