If the level of the person who made the greatest contribution is higher than the level of the raid monster by 3 or more levels, then the probability of dropping an item or adena will decrease. If the level difference is nine or more levels, then, the monster will not drop any item or adena.
Raid Boss - Level
Evil Spirit worshiped by Langk Lizardmen like a god in the south of Gludio. He looks like a snake and has ruled the spiritual world of Lizardmen for hundreds of years. Resenting his cursed body and the Gods in the heaven who created it, he tries to slaughter all the messengers of the Gods discovered on earth. He is very violent and has burning ambitions to destroying the entire area of Gludio someday by controlling Langk Lizardmen.