Spoils, Event Erasure!
Aside from special cases like the Devouring Centaurs, it was one of the oddities and unique points in 'Murim Supremacy' that monsters dropped nothing like a core, mana stone, or a crystal heart. However, things were different when it came to the Demon Lord himself.
Unlike the rest, he was a being granted a rare spatial authority! This authority would have easily been recollected and granted to a new Demon Lord if he died back home just like what happened in his case, but perishing in foreign land made it impossible to achieve a complete recall.
'Here you are.'
A clear crystal sphere, rather than being transparent, it was wholly white as if untainted by all wrong in the world. Unfortunately, three pitch-black lines ran through it interchangeably like cracks presenting its imperfection.