In the "Turtle Origin Strategy," there is a peculiar Feng Shui array called the Black Tortoise Spirit Suppressing Array, which can not only suppress the grand array but also summon the mystical power of the Northern Black Tortoise Star Realm to conceal the dragon vein.
Zhang Jian certainly wouldn't be content with just the power of concealment. During this period, he comprehended the entire "Turtle Origin Strategy" and inferred a unique Feng Shui grand array from it, named the Four Symbols Hidden Dragon Array.
Borrowing the power of the Four Symbols to suppress Feng Shui and nurture the dragon vein.
Among the Four Symbols Divine Beasts, he already possesses three around him.
