Kronium

Kronium (Kr) is a fictional semi-organic metallike element that makes the skeletal structure of the BFBs. It can adapt, transforms and evolve pretty quickly, but almost stops its evolution when the BFB is near the age of 20–21. After that the body stays the same without any natural transformations. It however can be changed if BFB uses something that can cause mutations, transforming them even more.

Kronium can vary in types and have a different color based on these types:

Kr (Alpha) - The main and most common type of the Kronium. It has a metallic, steel or iron color to it. Can be shiny or more matte. (Available to anyone.)

Kr (Beta) - Still pretty common type of the Kronium. It has a copper or bronze color to it. Can be shiny or more matte. (Available to anyone.)

Kr (Gamma) - Uncommon type of the Kronium. It has a brass color to it. Can be shiny or more matte. (Available to anyone.)

Kr (Delta) - Rare type of the Kronium. It has a shiny gold look to it. Always shiny (Only available if Golden Touch used.)

Kr (Epsilon) - Extremely rare type of the Kronium. The BFBs with this type of the coloring are almost one in a million. It can change color based on the conditions or host preferences. Can not be gold or bone colored. (Only available if Element ''Epsilon'' used.)

Kr (Omega) - Rare type of the Kronium. It has bone like look but strong, durable and flexible as usual Kronium. (Available in special cases, but 100% available if Necromancy Brew used.)