Nimrod had made extensive preparations beforehand:
Before he became a demigod, when he could not freely enter and leave Sefirah Castle in the world of Mystery, he had stocked the underground ruins with supplies and equipment to handle all kinds of situations.
After becoming a demigod, Nimrod had moved those underground ruins into Sefirah Castle, allowing the equipment to gradually become imbued with its power.
Unlike Klein, Nimrod had absolute control over the Sefirah Castle he commanded. The gray fog within this region was an extension of his will. For that very reason, the equipment before him now functioned like extensions of his arms.
The wood from the Shadow Tree fell into his hand, and Nimrod immediately felt a flood of frenzied, desire-laden thoughts pouring into his mind, trying to inject their corruption into his body.
But Nimrod merely chuckled and effortlessly suppressed those thoughts, which were powerful enough to alter the personalities of ordinary people and even some low-sequence Beyonders.
Not as good as the Celestial Worthy-in terms of corrosion.
The thoughts produced by the Shadow Tree were vastly weaker than the mental imprint the Celestial Worthy had left within Beyonder characteristics. They could not even affect Nimrod's mood.
With the help of the machinery around him and Sefirah Castle's suppression, Nimrod easily shaped the indestructible wood into what he wanted:
A saber with neither a sheath nor a guard.
Only a slender, dark arc separated the hilt from the blade, marking the boundary between the two parts. The blade had an elegant, slight curve. Though carved from a single piece of wood, it now looked like pure black jade.
Nimrod raised the saber with both hands, pinching its tip with one and holding its hilt with the other as he carefully examined the honed edge:
He had made