And Underlord sitting next to some skeletons in Ssuorrvlos' Lair
Underlords are level 60 monsters Ssuorrvlos' Lair. Unlike most monsters Underlords have a counter attack to the Druid spell Sunlight. If they detect that there is a Sunlight spell somewhere in the room they will immediately turn it to a Dark Sunlight which drains the players' health and restores the monster's health. Because of this many prefer to use Priests for the dungeon instead although it is possible to get through with a druid healing if they know not to use Sunlight around Underlords.
Underlord's have 1,861,340 HP and 0/0 MP according to the spy ability. The monster seems to have some kind of powerful Siphon ability however which allows them to steal all of the player's MP which they can then use to power their own spells. Underlords can do a lot of damage with their magical attacks and their melee attacks can do 7,150 damage. Their defense is 1,450 and they drop the following items according to the Spy ability.
Stygian Essence is dropped at a 0.01% drop rate.
Mark of the Ninth Year is dropped at a 0.03% drop rate.
Slayer of the Fallen is dropped at a 0.04% drop rate.
Ivory Sin is dropped at a 0.04% drop rate.
Pitchfork of Ssuorrvlos is dropped at a 0.04% drop rate.
Nosferatu's Ripper is dropped at a 0.04% drop rate.
Path of Darkness is dropped at a 0.04% drop rate.
Stave of Suffering is dropped at a 0.04% drop rate
Hallowed Hornbow is dropped at a 0.04% drop rate
Sacrificial Kris is dropped at a 0.04% drop rate
Cursed Blade of Blood is dropped at a 0.04% drop rate
Spines of Vorcugore is dropped at a 0.04% drop rate
Devilfang Spinner is dropped at a 0.04% drop rate
Dead Man's Hand is dropped at a 0.04% drop rate
Hell's Bane is dropped at a 0.04% drop rate
Hallow's Lantern is dropped at a 0.04% drop rate
All Hallow Armor is dropped at a 30% drop rate
Level 55 armor is dropped at an 80% drop rate.