An inheritance wasn't hard to make for a divine being. Noah's inscription methods didn't suit that type of structure, but his mental waves were enough to alter the environment to his needs.
Inheritances generally needed a secret location, trials, and rewards. Noah could use the separate dimension for the structure, and he had already planned what to give to his heir. He only needed to create the tests to complete that project.
Noah would normally fill the place with powerful magical beasts, but the world had a shortage of living beings. He could use his ability to communicate with those creatures to create packs and force their reproduction, but he preferred to use another approach.
The many experiments with the living weapons had taught him how to create living beings. Noah could fill the separate dimension with an army of creatures that followed his orders instead of training living beings for the task.
Living beings only needed a body and a core that acted as a consciousness. Noah could use the dark matter to overcome the first hurdle and his mental waves for the second.
The creatures had to be in the human ranks, with only a few leaders in the heroic ones. His thoughts had become so powerful that they could easily give life to beings at that level.
'It needs to test every aspect of a cultivator,' Noah thought as he planned the features that his creations would have. 'My heir needs to be a complete warrior with good survival instincts.'
A shape took form in Noah's mind as he focused on those ideas. Dark matter flowed out of his black hole while he remained immersed in his thoughts, and a figure soon appeared in front of him.
Noah saw a humanoid creature when he opened his eyes. The beast was three meters tall and had long arms filled with bulging muscles. Its hands and feet featured long claws, and a layer of sharp fur covered its entire body.
The dark matter had been able to create the creature instantly. That prototype was only a rank 4 specimen, so the higher energy could complete the task in no time.
'A bit small for a beast in the heroic ranks,' Noah thought, and more dark matter flowed out of his black hole to converge in the creature.
The humanoid beast grew until it became five meters tall. Its power had suddenly shot to the fifth rank after that empowerment, but Noah promptly took away some of his dark matter to lower its level.
It was hard to limit his higher energy's power, but Noah only needed to complete the process once. He would mass-produce those creatures afterward.
'A long-range attack now,' Noah thought, and the dark matter acted.
A pair of curved horns grew from the creature's temples, but its power shot in the sixth rank after those modifications. Noah had to call back part of his higher energy to lower its level and force it to return at the beginning of the fourth rank.
'Perfect!' Noah exclaimed in his mind before enveloping the creature in his mental waves.
A small strand of his thoughts separated from his consciousness and flowed inside the beast. The humanoid creature immediately took life began to roar toward Noah.
Noah had given the creature a minute part of his greed and the knowledge about its body. The beast knew no fear, so it didn't hesitate to attack him since hunger filled its mind.
Black lightning bolts gathered on its horns while it swung its massive arms toward Noah. The creature aimed to kill him, but it didn't even manage to overcome his dense aura.
'I should put some limits to its behavior now,' Noah concluded as unique wills gathered in his mind.
Noah had created a proper living being, meaning that the creature had the chance to evolve. Yet, that species carried some of the strongest features in the magical beasts' field, so he couldn't let them act freely.
If such a strong species ever happened to set foot on the outside world, it would unleash chaos among the fauna. There was a high chance that it could even become the plane's overlord, and Noah wanted to avoid that outcome.
Moreover, he had to prevent those specimens from resorting to cannibalism. The purpose of his trials would vanish if potential heirs were to face a being in the fifth rank once they approached his inheritance.
Noah didn't take much to polish the mindset of the creature. A few strands of his thoughts were enough to complete the creations of a new species.
Black clouds formed in the sky when the world sensed the appearance of that new species, but Noah only needed to unfold his consciousness to disperse them. That Tribulation had power in the fourth rank, so Noah didn't even bother to raise his head to destroy it.
Once Noah completed his new species, he began restructuring the separate dimension. He needed to enlarge specific areas and make them converge toward the rewards.
Noah enlarged and destroyed parts of the separate dimension, he opened portals inside its fabric to create alternative paths, and he filled the area with his dark matter.
His higher energy carried his desire to hide and reinforce that place. Heroic cultivator wouldn't be able to break those protections and seize the rewards now.
His dark matter could also reinforce and refill the destroyed creatures, so Noah packed the separate dimension with his higher energy. Inheritances could remain hidden for millennia, so Noah had to make sure that his trials would survive the passage of time.
Noah then covered the dimension's entrance with a few layers of dark matter that concealed its location. Those defenses would disperse after two thousand years, but they would continue to apply their restrictions even after the inheritance opened.
Noah began to mass-produce his creatures after he completed all the modifications on the separate dimension. Peak rank 3 humanoid beasts started to fill those areas, and leaders in the fourth rank took charge of certain checkpoints.
In the end, Noah condensed his expertise in the Elemental Forging method and his knowledge about the higher energy to give birth to a will that could control the dark matter in the dimension.
The will also carried his gratitude toward the many experts that had decided to create inheritances in the past. That feeling would prevent his will from rebelling and would force it to continue in its mission.
Noah knew himself too well. He was aware that his will wouldn't stay put unless he used appropriate feelings to control it.
Noah sorted out his items at that point. He could leave behind most of his old weapons, scrolls, and books since they would become useless in the Immortal Lands.
The techniques in his possession were of the darkness element, but Noah didn't limit his inheritance to cultivators with that aptitude. His scrolls and books would become valuable again once the Elbas family came out of its dimension and rebuilt a society.
Noah didn't have much left after that process. His separate space contained only the Demonic Sword, Night, Shandal's strange diagram, the Seventh Kesier rune, and a few materials after completing his inheritance.
The invasion of the Eternal Snakes had shown him that the Immortal Lands featured many beings in the heroic ranks, so Noah decided to bring the Kesier rune with him. There could be societies in the higher plane where he could trade it.
After Noah left the separate dimension, his will took control of the dark matter inside it and hid the entrance. The inheritance was now active, but it would become accessible in two thousand years.
Noah wanted the human society to evolve before revealing his inheritance. Activating it now would only give it to the Elbas family.
'An inheritance purely founded on battle prowess,' Noah thought once he reviewed his creation from the outside world. 'June would love it.'
A wave of memories surged in his mind when Noah thought about his lover, but he soon suppressed his feelings to focus on his last project. He only had to decide what to do with Second Prince before leaving the world.