Theory: Each Dragon Sovereign Ruled a Primordial World System
The Primordial Sea may give us the clearest example of what the Dragon Sovereigns’ original authority looked like. Its Heart was closely tied to the Hydro Sovereign, and it played a direct role in Neuvillette’s rebirth as the Hydro Dragon Sovereign.
The Primordial Sea is not just an ancient source of Hydro energy. It is described as something fundamental to life itself in Teyvat, a place where life originates and returns. The fact that Neuvillette’s transformation and restoration of his authority is directly linked to it suggests that the Primordial Sea is not merely a resource, but a core system tied to the identity and continuity of the Hydro Sovereign.
This raises the question: what if the other Dragon Sovereigns also ruled over something more fundamental than their respective elements? If the Primordial Sea represents a core system tied directly to the identity, rebirth, and authority of the Hydro Sovereign, then perhaps the other ancient substances, forces, and systems scattered throughout Teyvat are not random remnants, but echoes of the original domains of the Dragon Sovereigns.
Pyro — Phlogiston
Xiuhcoatl is the original Pyro Dragon Sovereign, and we know that he had dominion over Phlogiston. This makes Phlogiston one of the strongest examples of a primordial system being directly tied to a Sovereign.
Xiuhcoatl's connection to the Primal Flame and his ability to control Phlogiston suggest that it wasn't simply an ancient form of Pyro, but something that fell within the Sovereign's original authority.
This could mean that the Pyro Sovereign's domain extended beyond the Pyro element itself, with Phlogiston being the primordial system underlying that authority.
Cryo — Prime Ice
The introduction of Prime Ice gives us an interesting candidate for the Cryo Sovereign.
Its name suggests that it is something more fundamental than ordinary ice, and it can be used to create Prime Ice Constructs.
If Phlogiston represents a primordial form of Pyro, then Prime Ice could potentially be the equivalent for Cryo.
However, unlike Phlogiston, we don't yet have enough information to know exactly how Prime Ice relates to the Cryo Sovereign.
Dendro — World Tree -> Irminsul
Apep is the original Dendro Sovereign, making her especially important to this theory.
The ancient World Tree existed during the age of the dragons, with its roots connected to the world's elemental energy and Ley Lines. After the arrival of the Heavenly Principles, the tree was usurped and refashioned into Irminsul, changing its role into the system that records Teyvat's memories and information.
If the World Tree was part of Apep's original domain, then Irminsul could be the modified form of a primordial Dendro system.
World Tree → Irminsul
This would make Dendro the clearest example of a Sovereign's original domain being repurposed by the Heavenly Principles.
Geo — Dragon Veins -> Ley Lines
TThis is the most speculative part of the theory, but there are some interesting connections.
The Chinese name for Ley Lines is 地脉 (Dìmài), meaning "Earth Veins," which closely resembles the traditional concept of 龍脈 (Lóngmài), or "Dragon Veins." This feels especially fitting for the Geo Dragon Sovereign.
Geo Vishaps can absorb different elemental energies from the Ley Lines, allowing them to adapt to different elements. Azhdaha, who is believed to be the original Geo Sovereign, is also particularly sensitive to the Ley Lines and their elemental energy.
Anemo — Unknown
Anemo is one of the harder elements to place.
The Thousand Winds might initially seem like the obvious choice, but they are strongly associated with Istaroth, rather than the Anemo Sovereign. Because of this, I don't think they should be used as the Sovereign's primordial domain without stronger evidence.
There may still be an ancient wind-related substance or system connected to the Anemo Sovereign that we simply haven't identified yet.
For now, I think it is better to leave Anemo's primordial domain unknown rather than force a connection to the Thousand Winds.
Electro — Unknown
Electro is currently the biggest gap in the theory.
There are plenty of concepts associated with Electro — energy, consciousness, eternity, and artificial life — but none currently stand out as a clear primordial system comparable to Phlogiston or the Primordial Sea.
For now, I think it is better to leave the Electro Sovereign's original domain unknown rather than force a connection that the game hasn't supported yet.
Would Love to hear your guys opinion. And see if this holds up to others
