Reference artwork for Yuo’s first Fusion Monster!
Yes, the device on Asurastar is referred to as a core of sorts.
And it makes note that each sword of Asurastar has a different gemstone set into its hilt.
[Reference Art] Metallion Asurastar
By NeoArkadia
NeoArkadia
NeoArkadia is the 2nd Number of "The Organization" and a primary article writer. They are also an administrator for the forum Neo Ark Cradle.