Stormonu
NeoGrognard
The only thing I can think of are Soul Coins from Descent to Avernus, and perhaps Larva, Dretch and Manes, which are fashioned from evil souls or used as a sort of currency.
I seem to recall some of the gears of Mechanus being forged of souls; that might be referenced somewhere within Planes of Conflict.
The adventure The Deva Spark revolves around the "spark of good" from a slain Deva and how it transmorgifies a Bebelith - might this be something along the lines of a "material" you are looking for?
I seem to recall some of the gears of Mechanus being forged of souls; that might be referenced somewhere within Planes of Conflict.
The adventure The Deva Spark revolves around the "spark of good" from a slain Deva and how it transmorgifies a Bebelith - might this be something along the lines of a "material" you are looking for?
