Fleischkraft

"'If the Löwa have any capacity for creativity it is for the warping of living flesh into terrible forms. A most disturbing capability.'" "—Klinde" The Fleishkraft was the  practice of transmuting living flesh into alternate forms native to the Löwa. Was often regarded as and "art" and was reserved only for the ruling elite and their close cadres of practicing clerics.

Creating wholly new creatures
The Fleischkraft could be used to create new beings from existing living matter. This was how the Great Hund made the Löwa  species from pieces of his own body. Likewise, Ilnel was able to create Nembaring, among many other creatures that filled the Kaltstein.

Example beings created through the Fleischkraft:
 * Nembaring

Modifying existing creatures
The Fleischkraft could also be used to modify existing beings. Virtually any aspect of a living being's bodily composition could be changed through this process.

Example beings modified through the Fleischkraft:
 * Johannes
 * Marcel
 * Ränkensic
 * the Taaken

Procedures
A subject of the Fleischkraft underwent a number of surgical procedures and was then implanted with the formskul to help the transmutation process for modification.

Newly grown beings were incubated in glass jars or tubes filled with a viscous red nutrient fluid to keep them alive during the early growth stages.

Ease of use
The Fleischkraft was said to be very difficult to perform and its secrets were held by only the greatest rulers of the Hundish Realm, passed down over the ages from the Great Hund.

In The Sword and Its Servant, Ilnel ruminated at how it was easier to create new beings with the Fleischkraft than to modify existing ones: "He preferred it this way—it was so much harder to erase what had been etched in flesh and blood than to make anew what could be freshly grown to his liking. It was simpler to destroy what no longer worked for him and to make something that did to replace it. "

This may have either alluded to the actual fact of creation being easier than modification, or simply have been a nod to Ilnel's personal preferences in the matter.