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 29 — The ghost of an Elf who loved the forest and swore to protect nature and animals from the heartlessness of war. In the end the elf was killed while doing his duty, but came back as a ghost. A herd of wild boars loyal to him helps and protects him. He is angry at strangers, because they may bring war into the forest.
Undead — Raised from their graves by Black Magic, a curse or evil will, most of these creatures lack intelligence and can only perform the simplest actions. Still, the higher undead have vast knowledge compared to ordinary mortals.