Raid Boss — If the character who dealt the most damage is 3 or more levels higher than the monster, the reward in items and adena is reduced. If the difference is 9 or more levels, there is no reward at all.
Raid Boss - Level 58 — An entity trying to invade the world of the living through the Dimensional Rift together with devils from another world. Its form is very unstable because of the temporal and spatial distortions of the Rift.
Demons — The race of Darkness that opposes the angels. Creatures changed by dark curses also become demons.