As the last surviving clan elder, he has been driven close to
madness by his grief over the imminent failure of his clan to protect
the Worldstone. Constantly ruminating on the myriad alternate courses
the elders could have taken, he lives with the guilt of not dying
with his peers.
Tips and Other Additional Information
Nihlathak's Corpse Explosion is the main reason he is feared among
Hardcore players. When you kill one of his summoned Minions, make
sure you use a skill that utilizes the corpse before Nihlathak can
explode it such as the Paladin's Redemption, Barbarian's Find Potion,
or Necromancer's Revive. Equipping Items with the "Slain Monsters
Rest in Peace" modifier such as the Nature's
Peace Ring has the same effect. In Normal and Nightmare you
can also use freezing attacks to shatter the minions so they don't
leave corpses. High Fire Resistance and Physical Damage Reduction/Block
Rate will help against his Corpse Explosion.
Nihlathak uses the following Skills: Summon Minion, Minion Frenzy,
Corpse Explosion, Arctic Blast, Teleport.