Among the entire Godslayer Set, each individual set piece was only Tier 3—Excellent.
But once the complete set was assembled and "Core of Shattering" was lit, the set would instantly rise from "Excellent," pass through "Superior," and reach the "Rare" tier.
Above Rare were Epic (Black Technology) and Epoch-Making (Cross-Civilization), two higher equipment tiers.
If it was "Black Technology" tier, Gao Gong's two neighbors—the Galen and Mierda people—most likely possessed the relevant technology.
But if it involved "Cross-Civilization" technology, even those two "golden and silver boys" probably couldn't produce it.
That was because top-tier individual equipment of Tier 3 could only be developed in the middle or later stages of a Tier 3 civilization.
Of course, once that technology was developed, equipment of that level could be mass-produced.
The reason Gao Gong was confident he could produce Tier 4 equipment, aside from the starport's synthesis harbor, was that Tier 4 star core.
Star Core (Tier 4): The shell of a Tier 4 energy lifeform, perfectly stripped away through advanced energy synthesis technology. Because the stripping was extremely complete, it contained a planet-level life aura that could grant equipment an over-tier enhancement.
This thing was extremely rare.
Although the territories of the two neighbors certainly contained resource planets, and certainly had lifeforms similar to Yuan, they probably couldn't extract a star core of this level.
The reason was simple. Like the starport, an "advanced energy synthesis factory" was also a Tier 4 structure. Civilizational buildings of this level were rare even among Tier 3 civilizations, let alone having two at once.
Moreover, to forge this kind of "star core," the "spatial forging technique" required was a national-treasure-level craft even within the Mierda Federation.
At least according to the information Gao Gong had gathered, even the Federation's strongest and most famous psychic