The Diablo Lore series is a collection of articles delving deep into the history of many important Diablo figures and events. Since Diablo’s story is ongoing in the famous ARPG, I will try to constantly update these articles. I started with a Warcraft Lore series but I decided to give Diablo a chance as well, since its lore is really interesting. The following article will inform you about the Lesser Evil Belial.

Let me know in the comments about any errors or inconsistencies you may find. Feedback is greatly appreciated. Enjoy!

Keep in mind that the first three paragraphs are almost identical to all other “Lesser Evils” Lore.


Belial, the Lord of Lies, is one of the four Lesser Evils (The other ones are Duriel, Azmodan and Andariel). Belial was born from one of the seven heads of the ancient evil dragon Tathamet. When Tathamet fell, every one of his heads became a Great Evil. Great Evils are separated in three Prime Evils and four Lesser Evils. In his early days, Belial used to rule the Realm of Lies in Hell, with Mephisto as his mentor.

The four Lesser Evils (Azmodan, Belial, Duriel and Andariel)

The First Rebellion

During the Sin Wars, the three Prime Evils kept the existence of Sanctuary and the nephalem secret from the Lesser Evils. When Azmodan found out about humanity, he lost trust in the Prime Evils and began to investigate further. Soon, the Lord of Sin found out that the Prime Evils’ main concern was their influence in the nephalem and not the Great Conflict anymore. This outraged Azmodan who decided to rebel against the Prime Evils by creating an army of demons. Belial declined to help his brother so Azmodan’s rebellion failed.

Belial’s brother, Azmodan the Lord of Sin

The Second Rebellion and the Dark Exile

Many years after, Azmodan contacted Belial again with new information about the Great Evil’s weaknesses. This time Belial accepted Azmodan’s offer and joined the rebellion. Believing that the main target of Hell was the High Heavens and not the control over humanity, the two brothers began a second rebellion against the Prime Evils. Although the Primes exacted a heavy toll on the rebels, they were, in the end, banished to the mortal realm, weakened and bodiless. Azmodan believed that with Diablo, Mephisto and Baal set loose in the mortal world, Heaven would switch their focus to the mortal plane, leaving them vulnerable to his attacks.

The three Great Evils (Diablo, Mephisto and Baal)

However, soon Belial and Azmodan started fighting about the throne of the Burning Hells. They turned on each other and their pact was forgotten. The armies of Hell were divided into two, leaving Azmodan powerless to take over the High Heavens with only half of his army left and Belial laying siege on his fortress. Thus, the second civil war in Hell began. After many years, the two Lesser Evils finally made truce and realized that humanity was really the key to victory all along.

The following paragraph is a small spoiler so proceed with caution. Mephisto have orchestrated these series of events and the Prime Evils were exiled in purpose from Hell. Their goal was, through the soulstones, to corrupt the Worldstone. If they managed to corrupt the Worldstone they would be able to take control over the nephalem, retake Hell and win the Eternal Conflict once and for all.

Garreth Rau and the Second Order

Even during the civil war, Belial conducted his own machinations to make humanity turn against the Angels. The Lord of Lies manipulated many people but his main target was Garreth Rau. Garreth was an orphan, with a strong nephalem lineage, and a really skilled mage. Belial managed to transform the broken human into a powerful dark mage loyal to Hell’s forces. Garreth’s personality and memories were overwritten and, soon, he became a creature without emotions and mercy. A Dark One. Garreth also founded a second Horadrim Order in order to fight the original group.

Deckard Cain, one of the most wise and influencial nephalems

Many years later, Garreth found himself against Deckard Cain. The wise old man talked to the Dark One, reminding him of his past and his noble nature. Despite his memory completely corrupted and his sanity reduced to zero, Garreth’s “good” personality briefly resurfaced. The Dark One understood that he can not contain his evil spirit anymore, and after thanking Cain for freeing him, he drove himself to suicide. Belial was devastated after the loss of his lieutenant, however the birth of the boy emperor of Caldeum gave him another target. The Lord of Lies planned to possess the child, using him as a vassal to take over Kehjistan.

The city of Caldeum in Kehjistan

Emperor Hakan II

With his new plan set in motion, Belial infiltrated the court of Emperor Hakan I of Caldeum. When the father died of illness, his son Hakan II was crowned emperor of Kehjistan. The Lord of Lies immediately possessed the young man and with his new body and title, he managed to weaken the nation from within. During the hunt for the shards of Sword of Justice, Belial’s second in command, Maghda, managed to kill Deckard Cain and almost defeated the Archangel Tyrael before escaping.

Magdha, Belial’s lieutenant after the suicide of Garreth Rau

The Fall of Belial

When Tyrael recovered, he led the nephalem adventurers to Caldeum in order to expose the false empreror. In the corrupted city they faced Maghda again, putting and end to her life and finally avenging Cain. Seeing another one of his top lieutenants fall at the hands of the nephalem, Belial went crazy, raining down meteors in the city. He revealed his true identity and proceeded to fight the group of nephalem adventurers. Despite his mind control abilities and his relentless attacks, he was slain and imprisoned within the Black Soulstone. Kehjistan was finally free.

Belial’s final stand (Diablo 3 in-game)

I plan on making one Warcraft lore post and one Diablo lore post  per week (hopefully some videos in the future). If you enjoyed the article and want to support me, feel free to throw a like on my site’s Facebook Page and a follow on Reddit. Thanks for reading!

If you want, you can also check my other Warcraft Lore articles or my other Diablo Lore articles.

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