Demonic ghosts were the strongest of the monsters which Death wanted you to dismiss at the Death's Door Hallowe'en event. They could only be summoned by players using 5 Demonic traces. Upon defeat it, the player would have been rewarded with 170 points (340 if bonus available) assuming the player had not reached the 15,000 point limit yet, along with a ghost hunting trophy, which may have been spent on some other rewards. Players were only allowed to collect 1 ghost hunting trophy per day.
This ghost had both the special attacks of the terrifying ghost and the vile ghost, with it being able to scare players with an area-of-effect attack for 5 fear and targeting a tile with a player on it for 15 fear, respectively. It would use the 15-fear-inducing attack far more frequently than the area-of-effect attack.