From Diablo Wiki
The Morlu are undead warriors of a special elite infantry serving Lucion and the Triune. They were first mentioned in the Sin War Trology, and also seen in the Monk's intro cinematic movie as a caster.
The Morlu Caster is a confirmed monster, having been profiled in the Monk's cinematic movie. The Morlu Berserker is a tentative monster assignation, based on one piece of concept art that's very similar in appearance to the Morlu Caster.
Diablo III Monster
|Diablo III Monster [ ]|
|Monster Family:||Cultist ?|
The Morlu Caster co-stars with the Monk in his introductory cinematic, though it has never yet been seen in the game.
The Morlu Berserker is not a confirmed monster, but the strong resemblance between it and the Morlu Caster, and it's very different weaponry, very similar to that of the Cultist Berserkers, makes it a reasonable guess.
Spells and Abilities
Unknown. The Cultist Berserkers drag similar clubs, which they swing like a monster version of the Hammer of the Ancients, smashing down so powerfully they get them stuck in the ground after a missed hit. It's unlikely the Morlu Berserker would exhibit that same behavior, but a club like that is clearly not used for love taps. Expect a massive, smashing attack from these guys.
Known Morlu Types
It's assumed that there are various types of Morlu, since they are a known race in the Diablo fiction. Since Morlu Casters are confirmed, it's only reasonable to expect some foot soldiers and tanks of the Morlu class to spawn with and provide cover for the Casters.
The Monk Cinematic
The Morlu Caster was first seen in a starring role in the Monk's intro cinematic movie. The Morlu Caster is the robed human who pretends to befriend the Monk and lead him to Alcarnus, before revealing his true demonic nature and attacking the Monk with powerful melee and magical attacks.
No other types of Morlu are seen in that movie, just lots of Cultists, but that's a special cinematic created to introduce the Monk; it's not meant as a gameplay preview.
Diablo Story Background
These heavy undead warrior elite troops are completely consumed by bloodlust and lust for battle that they can turn upon themselves when not employed in warfare. They are tall humanoids in heavy armor and have ram skulls as helmets.
During the Sin War they were described as resembling humans in appearance, but with eyes looking like black pits filled with a reddish glow, emanating hatred.
Hidden underneath the Temple of the Triune, the Morlu would continuously fight each other until they died, at which point a demonic artifact known as the Kiss of Mephisto would resurrect it. Everyone of them had fought and died at least a dozen times. They were more than fanatical - they lived and breathed (well, not literary) the essence and desires of the Lord of Hatred.
The Morly is exceedingly hard to slay. They continue to rise and fight regardless of weapon damage dealt to them. The only way to defeat one is to remove their head, at which point their life force is dissipating. They would still be alive without head for quite a while, but unless the head is recovered, it will collapse eventually (they work similar to other undead, but focus is on the head).
Spells designated to extinguish unlife and banishing undead are still effective against them. During the Sin Wars, Mendeln drained them of life force to prevent further resurrections, letting the former (assumed) humans rest in peace.
Morlu in Modern Days
Since the Triune seems to be on the return, its new masters must have had something against these dark pits of hatred as the Morlu Casters, at least, now have an additional plate spiked across their face and horn helmet with Teeth of Diablo.
This could also indicate the Morlu in fact are the new "priests" of the Triune, since many humans have been seen with Teeth of Diablo lodged into them, even mentioned by Abd al-Hazir in his 42nd and last entry.
There was no apparent introduction to the Morlu like there has been to many other monsters by Blizzard, but during the BlizzCon 2009 introduction of the Monk, we see an epic machinima fight between the martial artist and a Morlu Caster.
There is just the one Morlu Berserker concept art image, at this point. The idea it might be related to the Morlu Caster was provided by Butch Audacity, a commenter, in November 2010.
|Monsters of Diablo III Beasts Beasts: Superunique Demons Demons: Superunique Humans Humans: Superunique Undead Undead: Superunique Objects Bosses Boss Mods Monster Info Fanmade|
Bat - Beast - Blood Hawk - Demonic Hellflyer - Electric Eel - Khazra - Lacuni - Lamprey - Quill Fiend - Rockworm - Sand Monster - Sand Shark - Sand Wasp - Scavenger - Spider - Spiderling - Swarm - Withermoth - Wood Wraith -
|Primary Quest Uniques||
Act One Bosses:
Skeleton King -
The Warden -
Strong CC (Limit 1): Knockback -- Nightmarish -- Vortex -- Jailer
|Act One Uniques||Araneae - Web Spit||Leoric - Summon Skeleton, Teleport Strike, Triple Cleave||The Butcher - Smash, Grappling Hook, Spear, Frenzy Charge|
|Act Two Uniques||Maghda - Forcefield, Summoning Ritual, Punish, Moth Dust, Teleport.||Zoltan Kulle - Fiery Boulder, Time Bubble, Ceiling Collapse, Energy Twister,Vanish, Creepy Laugh||Belial - Phase One: Triple Fireball, Summon Vipers. Phase Two: Poison Meteors, Ground Pound, Lightning Strike, Lightning Breath.|
|Act Three Uniques||Ghom - Acid Slime, Sneeze, Gas Cloud, Chomp.||Siegebreaker - Triple Hit, Charge, Leg Stomp, Grab and Throw.||Cydaea - Pain Bolts, Web Trap, Spider Pits.||Azmodan - Bellyflop, Laser Attack, Falling Corpses, Demon Gate, Pool of Destruction, Globe of Annihilation.|
|Act Four Uniques||Rakanoth - Cleave, Teleport Strike, Blade Strike, Volley, Summon Minion.||Izual - Frost Nova, Frozen, Summon Minions.|| Diablo - Phase One: Claw Rip, Charge, Hell Spikes, Shadow Vanish Grab, Curse of Destruction, Ring of Fire, Ground Stomp, Curse of Anguish, Curse of Hatred. |
Phase Two: Shadow Clone. Phase Three: Overdrive, Lightning Breath.