Flying Fire Devil (formerly known as Dark Horn) is a winged creature with its purpose to interrupt players while they are doing LoD. It mostly targets the last player that came into LoD, so it is recommended to always get the last one to be a Swordsman, so he can be tank well, although sometimes it can change aims and appear on other players.
Dark Horn appears at 139 minutes and leaves again after 1 minute. He re-appears evey 4 minutes until the clock reaches 80 and LoD is finished.
Dark Horn is a fire attribute monster, with very high amounts of element ressistance. Anyone who is about to tank Dark Horn should have good fire ressistance and a lot of Hp.