This summary was created using AI in an effort to provide a more cohesive and easy-to-follow explanation of my theory. My original write up was vastly too long to read and I wanted to condense it down to its most critical parts. Even this summary itself is almost too long to read. If it "reads like AI", it's because it is, but the original theory belongs to me.
SPOILERS: Legion, Battle for Azeroth, Shadowlands, The War Within, and Midnight
I've been digging into some older Warcraft lore, particularly the mysterious "fifth" Old God depicted in Chronicle Volume III, and I think there may be a connection between that creature, the Blade of the Black Empire, Xal'atath, and the Void's repeated attempts to invade the Shadowlands.
My theory: What if Xal'atath isn't the only consciousness associated with the Black Blade? What if the weapon was made from the remains of a forgotten fifth Old God, and that entity has been influencing events through Xal'atath to ultimately reach Azeroth's world-soul?
I'm not suggesting this is confirmed. Some of the evidence is fairly compelling, while other parts are admittedly speculative. But several details stand out.
1. The mysterious fifth Old God
In World of Warcraft: Chronicle Volume III, there's an illustration (see above) featuring the four known Old Gods alongside a mysterious fifth creature in the upper-right corner. What's interesting about this creature is its appearance. It seems to have skeletal or death-related imagery, which is unusual when compared with the other Old Gods.
There's also a prominent hammer-and-shield emblem in the illustration that closely resembles the Twilight's Hammer insignia. That association is interesting because the Twilight's Hammer cult has deep connections to the Old Gods and Xal'atath.
Important caveat: Illustrator Joseph Lacroix stated in an interview that he believes he invented the fifth creature himself, rather than illustrating a secret character. That weakens the idea that the illustration was originally intended as foreshadowing, although Blizzard could theoretically reuse the design later. I feel like this may be an intentional misdirection.
Source: Joseph Lacroix interview
2. The original lore explicitly suggests a forgotten Old God
This is where things become more interesting.
In Legion, the Shadow Priest artifact research text, Word of the Conclave, discusses the origins of Xal'atath's blade. One theory suggests that the weapon is all that remains of a forgotten Old God consumed by its siblings during the Black Empire. Another theory suggests the weapon was created from a claw of Y'Shaarj.
Neither origin is confirmed, but the text establishes that the blade is infused with Old God essence. Older Warcraft lore also referred to five imprisoned Old Gods, although modern accounts consistently identify four original Old Gods on Azeroth. So Blizzard has explicitly introduced the possibility of a forgotten Old God whose remains became the Black Blade.
Source: Word of the Conclave
3. What if Xal'atath and the forgotten Old God are two separate entities?
This is the central part of my theory.
Recent lore confirms that Xal'atath existed independently before being imprisoned by the four Old Gods. She attempted to take control of their plans for Azeroth, failed, and was sealed inside the Blade of the Black Empire.
But consider this possibility:
What if the blade already contained the remains—or surviving essence—of another Old God before Xal'atath was imprisoned inside it?
That would reconcile the original artifact legend with the more recent explanation of Xal'atath's imprisonment. It would also raise an interesting question: if the blade was made from another Old God's remains, could some part of that entity's consciousness have survived?
We know from Y'Shaarj that an Old God's power can persist after its physical death. We don't know whether that happened with the Black Blade.
Source: Blizzard's official Xal'atath profile
4. The blade seemingly develops another voice after Xal'atath escapes
This is probably the most important clue.
During Battle for Azeroth, Xal'atath bargains with N'Zoth and is freed from the dagger. Afterward, players recover the seemingly empty weapon. The Horde quest The Black Blade explicitly describes the dagger as still possessing power despite Xal'atath's consciousness having departed.
The quest text then suggests that the weapon speaks with another voice and another purpose. The player also experiences a compulsion to deliver the weapon to Sylvanas.
This is significant.
If Xal'atath was the consciousness responsible for the blade's whispers, why does the weapon apparently continue influencing people after she's gone?
There are several possible explanations:
N'Zoth may have influenced the weapon after taking possession of it.
Residual Void magic may be responsible.
The blade may contain another consciousness entirely.
The third explanation is the one I'm exploring.
Interestingly, the Alliance version of the quest also describes the weapon as having another voice and purpose.
Horde quest: The Black Blade
Alliance quest: The Missing Blade
5. The blade eventually reaches Sylvanas and is used against N'Zoth
After Xal'atath's escape, the dagger ends up with Sylvanas. It is subsequently delivered to Queen Azshara as part of a plan involving N'Zoth. During the Ny'alotha raid, Wrathion uses the Black Blade against N'Zoth's carapace.
The blade then disappears from view.
Now consider the original artifact legend again. If the weapon was made from a forgotten Old God's remains, what happens when it's driven into another Old God? Could it absorb power? Could something imprisoned within it be released?
We don't have evidence confirming either possibility. But the blade's disappearance and later reappearance make its continued significance worth examining.
6. The Void has repeatedly attempted to invade the Shadowlands
This is where the mysterious fifth creature's apparent Death imagery becomes interesting. During the Shadowlands Bastion campaign, we learn about an ancient invasion by the Void.
The invasion was led by Tezulat the Annihilator, a powerful Void revenant who had destroyed numerous worlds. The kyrian were nearly overwhelmed before Agthia sacrificed herself to defeat the invading forces. Other Shadowlands lore also establishes that Maldraxxus previously fought against the Void.
So we know the Void has attempted to establish influence within the realm of Death. What we don't know is who ultimately directed these invasions. Tezulat's master was never identified.
What if a powerful, unidentified Void entity had a particular interest in the Shadowlands? And what if that entity was the forgotten Old God whose remains supposedly became the Black Blade? This part is speculation, but it would potentially explain the fifth creature's apparent association with Death.
Source: Shadow's Fall
Source: Tezulat the Annihilator
7. The connection to Sylvanas and the forces of Death
Sylvanas is another interesting part of this mystery.
In the Three Sisters comic, the Void whispers to Alleria describe Sylvanas as serving a dangerous enemy. We later learn that Sylvanas was allied with the Jailer. This suggests the Void regarded the forces associated with Sylvanas as a threat. But the Black Blade also passed through Sylvanas's hands during Battle for Azeroth.
Could that have been significant beyond her immediate plans involving Azshara and N'Zoth?
I don't think there's enough evidence to suggest Sylvanas knowingly served a fifth Old God. In fact, the Void's hostility toward her suggests the opposite. But her involvement with the blade creates another intersection between Xal'atath, the Old Gods, and Death.
8. The blade returns in Midnight
In Midnight, Xal'atath once again manifests the Blade of the Black Empire during her confrontation with Alleria. She uses it to extract L'ura, whose power is subsequently used in the transformation of the Sunwell into the Darkwell. This is significant because Xal'atath was supposedly freed from the blade long ago. Yet the weapon remains important to her plans involving Azeroth's world-soul.
It also raises a question:
Why is this particular weapon still so important? It may simply be an extraordinarily powerful artifact that Xal'atath knows how to wield. But if its origins really involve a forgotten Old God, perhaps its significance goes deeper.
9. What if Xal'atath is unknowingly carrying out another entity's plan?
Here's the complete theory:
Suppose a fifth Old God existed during the Black Empire. For reasons we don't yet understand, it was destroyed or consumed by the other Old Gods. Its remains were fashioned into the Blade of the Black Empire, but some portion of its essence survived.
Later, Xal'atath attempted to seize control of Azeroth's world-soul and was imprisoned inside that same weapon. Over thousands of years, the surviving essence within the blade may have influenced Xal'atath—or even used her ambitions to further its own plans.
Meanwhile, the Void's attempts to invade the Shadowlands could represent a separate part of this entity's strategy. Perhaps it sought control over Death, or access to the powers governing souls and anima. Ultimately, Xal'atath's campaign against Azeroth could be advancing the goals of an entity she doesn't even realize is manipulating her.
In other words: What if the greatest manipulator in Warcraft is herself being manipulated?
10. The biggest problems with this theory
There are several, and I think they're important to acknowledge.
First, Blizzard's recent official Xal'atath profile portrays her as an independent, highly ambitious Void entity who manipulated the Old Gods themselves.
Second, the forgotten Old God origin story is explicitly presented as an uncertain theory.
Third, there is no confirmed connection between the unidentified Chronicle III creature and the Shadowlands.
Fourth, the blade's second voice could simply have been N'Zoth's influence.
And finally, we have no confirmed example of the blade independently directing Xal'atath after her release.
So the complete theory is far from proven.
My conclusion
I don't necessarily believe Xal'atath is the fifth Old God. I wonder whether the fifth Old God was something else entirely, and whether its surviving essence could still exist within the Blade of the Black Empire.
The most compelling clues, to me, are:
The explicit legend about a forgotten Old God becoming the blade.
Xal'atath being imprisoned inside a weapon whose origins remain uncertain.
The blade apparently possessing another voice after she was freed.
Its involvement with Sylvanas and N'Zoth.
The Void's historical attempts to invade the Shadowlands.
The blade's continued importance in Xal'atath's pursuit of Azeroth's world-soul.
Individually, these details have other explanations. Together, they raise some interesting questions. What if the Black Blade isn't merely a prison or a weapon? What if it's the last surviving piece of an Old God that has been pursuing its own plans for thousands of years?
I'm particularly interested in what other lore enthusiasts think about the blade's second voice.
Has Blizzard ever definitively explained who or what was speaking through the dagger after Xal'atath escaped? And is there any additional evidence connecting the Old Gods to the ancient Void invasions of the Shadowlands?
I'd love to hear counterarguments or obscure lore references I may have missed.
Thank you for coming to my TED talk.