"No wonder it took me ten thousand years; it turns out that my previous 'Prophetic Divination' was equivalent to directly copying and buying the fate itself," Gu Shanhai finally understood why it was so expensive.
"This world is terribly flawed, directly giving me a bundled sale."
What Gu Shanhai wanted was a strategy, but the world, being very cunning, bundled the essence along with the strategy and sold it to him.
As for this military equipment, the "Sun and Moon Military Method" also contains the corresponding refining techniques. If Gu Shanhai wanted to replicate them, he could just refine them himself, but the power likely wouldn't be as great as that of the Four Directions Marshals. They need to be strengthened through campaigns to the south and north, similar to growth-type equipment; if you don't provide the corresponding experience, they remain merely initial-equipment attributes.
This is the difference between top-tier military methods and ordinary ones.
