This detail was the Formation Patterns.
Different types of Spiritual Pivot Formations, or even within the same type, have a unique Formation Pattern that sets them apart.
Mo Hua had noticed it before but didn't think deeply about it.
Because this Formation Pattern seemed to have no special meaning.
No matter how it was drawn, it didn't seem to affect the operation of the Spiritual Pivot Formation.
But after some research over these days and comparisons with most of the Spiritual Pivot Formations in the Formation of Ten Thousand Corpses, Mo Hua gradually understood.
This Formation Pattern was extremely important; it was the Sequential Formation Pattern used for identifying the identity of the Spiritual Pivot Formation.
Similar to a kind of Formation "code".
The same Spiritual Pivot Formation had the same type of Sequential Formation Pattern, that is, a Formation "code".
The same type of Sequential Formation Pattern had a similar main body, with only slight differences in the details, such as the addition or reduction of strokes or the changes in orientation, to differentiate the sequence.
Only when the Formation "codes" matched, could the Spiritual Pivot Formation control based on hierarchy.
Walking Corpses, Iron Corpses, and the zombies in the Bronze Corpse Coffins all used the same type of "coding" Formation Pattern, with a layered hierarchy defining their weights, which is why they could be controlled systematically.
The Little Tigers that Mo Hua drew were different, though.
Indeed, Mo Hua had originally copied the Formation from the bodies of Walking Corpses and Iron Corpses.
However, Lu Chengyun was using Evil Formation techniques, whereas Mo Hua, on the other hand, used orthodox Formation methods.
Therefore, their Sequential Formation Patterns were different in an intangible way.
Lu Chengyun could control zombies but not Mo Hua's Little Tigers.
While Mo Hua could control the Little Tigers, he also couldn't control the zombies in the Corpse Mine.
Unless... he changed the Sequential Formation Pattern on the zombies.
Changing the Sequential Formation Pattern was like changing the code, essentially changing the authority.
What Mo Hua wanted to change now was the special Sequential Formation Pattern on the young zombie, which was used to differentiate authority and identity.
Mo Hua had only chosen one small Walking Corpse.
The Walking Corpse was not an Iron Corpse.
Within the Corpse Mine, there were numerous Walking Corpses, and there were also many base-level Sequential Formation Patterns in their Spiritual Pivot Formations.
Whether there was one more or one fewer, Lu Chengyun would never notice.
The main reason, of course, was that Lu Chengyun never imagined that there would be another Cultivator capable of learning the Spiritual Pivot Formation.
Let alone make secret modifications to his Formation "code" right under his nose and among the hordes in the Corpse Mine.
Easy for those who know how, impossible for those who don't.
For Mo Hua, altering a basic Spiritual Pivot Formation Pattern was as easy as flipping his hand.
With a flick of his small hand, a few strokes, Mo Hua had changed the Formation Pattern.
Removing this small zombie from the Spiritual Pivot sequence of the Formation of Ten Thousand Corpses.
Then he added another Formation Pattern.
This Formation Pattern was the one he used on the Little Tigers himself.
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Having altered this Formation Pattern, the little zombie now is like a Little Tiger, controlled by the Spiritual Pivot Formation on the Big Tiger that Mo Hua manipulated.
On the surface, it still looks like a zombie.
But within the sequence of the Spiritual Pivot Formation, it's no longer a "little zombie" but rather a "Little Tiger."
After finishing the adjustments to the Formation Pattern, Mo Hua returned to his original spot as if nothing had happened, picked up the pen, and continued to draw the Formation eye of the Ten Thousand Corpses Compound Formation.
He was dragging his feet while drawing this Formation eye, delaying it for quite some time.
Finally, it was also close to completion.
Zhang Quan was still calling for Mo Hua to "come out," but in the blink of an eye, Mo Hua was already back in his place, fully focused on drawing the Formation.
Zhang Quan's expression tightened, "You're not running anymore?"
Mo Hua disdainfully said, "Why would I run? You wouldn't dare lay a hand on me anyway."
Zhang Quan, annoyed, "Then what were you doing just now..."
Mo Hua said with a smile, "I was a bit bored, just teasing you for fun."
Then he curled his lip, "Who knew you'd be so dull, like an idiot, completely unable to find me, it's really no fun."
Zhang Quan was about to fly into a rage.
Lu Chengyun had already appeared at the doorway.
Zhang Quan had to suppress his anger, just about to badmouth Mo Hua to Lu Chengyun, but then he thought, any words he said against Mo Hua, Lu Chengyun certainly would not believe.
And indeed, it seemed Mo Hua hadn't really done anything...