The Darkfiend Demon's corpse was massive, making even someone as large as Daoist Eternal Weapon look small. Its body was pitch black in color, as if it had been born from darkness itself. One of its arms still had the scythe-like protrusion on the back of its elbow, and its sharp teeth were bared as if it were eternally snarling. Lastly, its eyes were open yet lifeless, revealing a faded red set of eyes.
Its chest had a large wound at his heart, where John had plunged the scythe-like protrusion into, killing the demon. Its elbow-blade had been the only thing capable of penetrating its defenses, which had luckily been cracked by some previous battle, making it so that John was able to break it off. Otherwise, he would have most likely perished in that battle, unable to wound the demon at all.