What the hell are you on about? No.
The fuck?
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Yes we do. We literally see the Jailer use the Runecarver to craft Frostmourne and the Helm of Domination. All the Jailer did from there was make the Dreadlords give it to KJ, so he could give Ner'Zhul's soul with the newly crafted Domination gear.
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You do realize they probably don't give a fuck, right?
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The Entire Cosmos was done by 2 things: The Light and Shadow big bang, and the First Ones (Whether the First Ones made the Light and Void is up for debate). The Cosmic Pantheons, such as the Titans, the Void Lords, the Pantheon of Death, etc exist to stabilize and act as the lords of their respective powers. But, at the end of the day, The First Ones were confirmed to have set up the framework of the entire Warcraft Cosmos, they're above the Cosmic Pantheons, AND they're the progenitors of the Cosmos (Such as the Shadowlands, Reality, and beyond).