Demon God's Army
The entire mountain of corpses was covered in a brilliant blaze of crimson and black flame, and the hunters and merchants were unable to believe what was happening in front of them due to the extreme heat coming from the flame.
None of them can look directly at the flame because of the extreme heat. When they attempt to gaze, they experience searing in their eyes, as though the flames are right there in front of their eyes.
The massive monster bodies begin to burn like paper, turning to ashes in about a minute. They had never seen anything like this before; it was a sight of such profound and tremendous flame.
The mages are the most surprised, especially the ones with fire-related abilities. Even though they are all flame mages, none of them had ever seen flame this strong.