Mandelin

Mandelin is the final boss of the Spider Lair Instance Dungeon.

Description
Mandelin is described to be a massive spider, presumably bigger than the Fallen Spider Chief, with a human face.

Drops

 * Spider Silk Hood
 * Weaver's Leather Armor
 * Jade Spider Web (rare ingredient)

Attack Pattern
The difficulty of Mandelin is not the boss itself -- it's a standard boss -- but the eight elite monsters that stand around Mandelin, guarding him. When any one of the eight elite monsters are aggro'd, the other seven are also aggro'd. These eight monsters are described to have the same capabilities as the boss itself.
 * Berserk: 5% HP

First Kill Party

 * Lu Li
 * Azure Sea Breeze
 * Drinking Alone
 * Northern Tang Dream
 * Northern Tang Kitty