Bone Tempering Art allows humans and Demon Beasts to cultivate their skeleton to the point of becoming a magic treasure. It makes bones thicker and gives them a golden hue. It also make person be able to easily lift massive rocks that weighed several tons without using any magic power.[1256] [1263]
Beasts & Creatures Field record
Bone Tempering Art
Bone Tempering Art — a beasts & creatures record in the Mortal Journey Archive.