Wherever the Holy Spear passed, demons perished in its wake. Even if a few nimble lucky ones made it to Artley's side, they couldn't penetrate his defense, and their claws snapped upon contact with the Knight's armor.
Artley, like a war god among sheep, chose to clear the field and slaughter all Magical Beings, since he couldn't vanquish the Gluttonous Familiars.
Twenty squad members took Artley's place, casting spells to expand the Holy Light Barrier, which trapped the Corpse Demon, rendering it unable to move.
The attack power of the Corpse Demon was limited. It wasn't that it couldn't be killed due to its own traits. In other aspects, its performance was unremarkable. Surrounded by the Tactical Squad, it blindly charged at "Mom" Mona's position and never managed to escape.
The Holy Light Barrier was mighty in defense, not only trapping the Corpse Demon but also shielding the squad members from the external battle.