He has been staring at us since Vanilla and even as far back as Warcraft III.
What do we know about N'Zoth? He is the master of Deathwing, most likely resides in the Great Sea between Kalimdor and the Eastern Kingdoms, and is responsible for the transformation of the Naga. He was defeated by the Titans eons ago, but not killed, as killing the Old Gods would destroy Azeroth. But what lead the Titans to this conclusion? We have seen two Old Gods (three if you count Y'shaarj) die before our eyes, yet we felt not so much as an earthquake.
I propose that N'Zoth was the first Old God "killed" by the Titans (as C'thun faked his death.) The Old Gods do not live, therefor they cannot die. In order to "kill" such a being, one that is beyond our universe and understanding, the Titans would have to do the impossible: drag it fully into our reality, where it is bound to our laws. In the Warcraft universe, even mortals don't stay gone after they die. The spirits of ancient night elves had enough power to destroy Archimonde, the third most powerful being in the Burning Legion. Necromancers and shaman use the souls of the dead to channel their power. The dead can speak, and they can act upon the world. If N'Zoth, a god, were to die, what would be left of him?
The answer would be something of insane power. I propose that on the ground where N'Zoth was slain, he left behind the "soul" that was inadvertently given to him by the Titans when they pulled him down to our level, the power he had commanded in "life" became the Well of Eternity.We know the Well was left behind by the Titans, but we do not know why. In fact, it would seem strange for the Titans to do this. From what we know of them, the Titans value order and control. Why would they leave such a source of chaotic energy behind for the barbaric trolls and aqir? Because they could not remove it.
If one Old God left such power behind when it was slain, what would happen if ALL of them were killed? The Titans then fought their long war against the Old Gods, imprisoning Yogg'Saron and leaving behind watchers to jail him. They went further with Y'Shaarj, leaving only his heart and burying it beneath the earth.
The Titans eventually leave Azeroth behind, continuing their quest to order the universe. Meanwhile, the trolls around the Well evolve from exposure to its arcane energy and become the night elves, and the rest is history. Enter Azshara, queen of the Night Elves, extremely talented and equally ambitious. She heard the calling of Sargeras, who, now corrupted, wanted to harness the power he and the other Titans knew was left behind on Azeroth. Through the power of the Dragon Soul the Well was turned into a portal for Sargeras and his Legion. Deathwing, who originaly created the Soul thanks to the whispers of N'Zoth, tried to stop the summoning. But N'Zoth had no need for the dragon, as he was about to gain a much more powerful servant. His plan failed, however, as the portal was weakened by the various struggles for control occurring when Sargeras attempted to enter the portal. This led to the implosion of the Well, and the birth of N'Zoth's newest servants, the Naga.
N'Zoth had noticed Queen Azshara's power, and wanted her to be his new servant. When the Well imploded, Kalimdor began to sink into the sea. Azshara shielded herself along with her handmaidens against the flood, but as she sank beneath the waters, she heard the voice of N'Zoth promising her power in return for her loyalty. With nothing to lose, she lowered her shield and accepted the gift, becoming the first Naga and another tool for N'Zoth. From this moment on, the remains of N"Zoth would be the great scar of Azeroth known as the Maelstrom.
For ten thousand years N'Zoth would wait patiently as Deathwing recovered his strength in Deepholm and the Naga pursued their own ends. With the deaths of C'Thun and Yogg'Saron, N'Zoth's power somehow grew, and the world was torn apart once again as N'Zoth opened a portal to Deepholm within himself and let lose Deathwing upon the world once again. Ragnaros was sent to burn the World Tree, releasing the power on the second Well of Eternity. The Naga would usurp Neptulon and take his throne, and his faceless and the Twilight's Hammer would drain the life from the demigods L'ghorek and Nespirah. With his plans completed, N'Zoth would command Deathwing to rid the world of all life. So many souls to feast upon would surely give him enough power to reincarnate himself, or do what Azshara failed to do and open a portal for Sargeras inside the Maelstrom, giving him a new body to walk the world with once again.
His plan failed, however, as the heroes of the world worked together along with the dragon aspects to defeat Deathwing and the Twilight's Hammer, preventing the Hour of Twilight and N'Zoth's return. N'Zoth undoubtably has other plans, and if C'Thun and Yogg'Saron's death empowered him, Y'Shaarj's death has likely given him strength as well. Azshara is still alive, and likely still unknowingly enthralled to her master. Moonwells, made from the power of the Well, dot Azeroth and Outland, and could be ticking timebombs for the night elves. N'Zoth may have been the first to die, but it is likely he will be the last challenge Azeroth may face.
I know this theory has a few holes, but if it didn't it would be a fact, not a theory. But I do feel like i tied up a few loose ends, including;
- Why the Titans could not kill the Old Gods without destroying the planet
- Why the Titans created the Well of Eternity
- How Sargeras knew about the Well, and why he coveted it
- Why the Old God's stopped Deathwing from interfering with the summoning
- Why Azshara heard the voices of the Old Gods and was transformed the moment she was consumed by the Well
- Why the portal to Deepholm is within the Maelstrom
- Why Deathwing was empowered upon crashing into the Maelstrom
- Why we haven't heard out of N'Zoth since the Cataclysm
- What Lady Vashj was doing in Zangarmarsh (drawing in water to create a massive Well of Eternity with her vial, giving N'Zoth a hold in Outland)
feel free to call this the stupidest thing you ever heard, but please tell me where i goofed, thanks.
TL;DR, N'Zoth was the only Old God killed by the Titans, his soul and power became the Well of Eternity, now the Maelstrom