Demiurge Hellfire enhancement

“—[Aspect of the Devil – Hellfire Mantle].”
As the spear struck, a roaring flame blazed up from the ground, and a massive shockwave erupted from Jaldabaoth.
“Kuh!”
In order not to be blown away by the titanic displacement of air, Evileye crouched down and tried to weather the storm. Fortunately, because she wore her mask, she was able to keep her eyes open during the tempest.
Looking ahead, she saw Momon picking up his sword from where it lay at his feet, amidst the wildly blowing wind. Then, he charged Jaldabaoth again.
Jaldabaoth was ready to receive the attack. His body was wreathed in flames, and the spear from earlier was lodged in the ground by his feet.
As Momon swung down on him, Jaldabaoth caught the sword with both hands. Smoke rose from his palms, and the metal between his fingers started to melt.
“So, you’re able to melt a weapon like this… the ability has gotten stronger.”
[...]
“It is as you have surmised. The fire-type damage was strengthened by a special ability.”
On closer observation, the flames wreathing Jaldabaoth had a blackish tinge to them.
“Hellfire, is it?!”

- Overlord; Vol 6; Chapter 11