It's true that Karkstan's "Animating Inanimate Matter" was helpful to Lann.
When Lann was constructing his version of "Inner Steel," he used the knowledge from this book to build his framework of understanding for golems and magic-driven matter.
He finally succeeded in creating this version of "Inner Steel," which is not only on par with but even more powerful than the super organs possessed by Primaris Space Marines.
After all, the bone powder of the Extinct Dragon merely endowed Valerian steel with regenerative and tough properties, but there was no way to dictate where these regenerating and burgeoning steel cables would grow.
The control theory for these steel cables was constructed by Lann and Mentos after cramming the theory of golems.
These steel cables would be treated like golems, allowing them to receive commands and grow strictly and meticulously according to the orders.
