Darius Supreme

With the ability to make glass, Darius right away created windows for his cottage that were heavily tinted so that they could regulate the sunlight that poured in. 

He also created windows for many of his sealed domes, even going as far as to replace some with thick glass entirely, rather than stone. He also created a greenhouse around his crops so that they would flourish better. 

Speaking of, many had long since sprouted and some had even become ready for harvest. Darius was happy to include lettuce, cabbages, tomatoes, onions, and more to his diet. 

He then created a metal construct that was shaped like a warehouse. Within this building, he created a special room made of metal that was set to be his cold room. 

He placed the perishable goods in there and then created a receptacle in the middle of the room. Overcharging his mana by using channeling, Darius created a football-sized ball of ice that he placed in the receptacle. 

Darius then cast a relatively weak blizzard in the room that created a cold atmosphere, then sealed the cold room, not allowing the cold air to escape. 

Darius then went to his various water sources and refilled them as they were going low after so long. They managed to last so long because their depth and volume had truly been large. 

Before he continued, Darius displayed a very satisfied smile. He blinked to the edge of his settlement and saw that the huge ponds of water he had made had long evaporated due to the constant heat. 

He looked to the sky and noticed that there were more clouds hovering about. Some were still around while others had been blown slightly farther away, but Darius didn't mind. 

He notice that the sand around the area of the settlement had become strangely soaked and denser. Darius had been quite busy during meditation, but he was aware that it had rained more than a few times during his stay indoors. 

The climate of the desert was becoming chaotic as more and more factors were being introduced into the biome causing a change. This time, Darius was ready to introduce the biggest one yet. 

The Itemancer replaced many of the metal and stone constructs with wood, like the water towers as well as the bookshelf in his cottage, his table, and chairs, etc. 

He also created many light bulbs for the nighttime using his metalmaking, and connected them with wiring from the generators which had been calmly running all this while. 

He had created a huge pool of diesel beneath the dome that housed the generators like how filling stations had huge tanks underground. Then he connected pumps to the generators that would allow them all to pull directly from the source slowly. 

Darius used his ceramic-making abilities to make plates, pots, and various tools, and especially a toilet. He created toilets and linked them to his intricate waste system, finally completing it to some extent. 

However, since he had hardly released waste from his body thanks to his high Endurance, it was largely empty. Darius replanted and refilled everything that should be refilled. 

Since he had access to a wide array of materials, he replaced any of his setup systems with the appropriate materials that were used on Earth. 

Once done with this, he walked out of the settlement area and expanded the stone wall's range slightly, allowing for the addition of more plots. He then created an intricate walling system that was ornate for aesthetic purposes. 

Outside his settlement, he looked around and saw that the rest of the desert was a bit awkward. Some parts were soggy like mud and drying up while some parts were still sandy and hot. 

In the soggy parts, Darius created a batch of tree seeds and tossed them there. Among the seeds were Peach, Mulberry, Apple, Citrus Fruit, Apricot, Mandarin Fruit, Cherry, and Fig. 

He then made sure to water them and create an entirely new irrigation system just for them, though he connected them to the already existing waste system. He didn't do this in just one spot, but any spot with sand that had been slowly changed by the rain. 

It took him three days to achieve his work, and he smiled by the time he was done. Darius felt like he was a God right now, creating from (almost) nothing and designing an entire biome using his own power. 

Done with this, he returned to his cottage and sat in a meditative pose. He wasn't going to create new spells, but finish his practice with all those he had already made. 

Darius planned to invest at least 3 years to manually master every spell he had stuffed into his Inventory. This included the basic spells of all elements and the Intermediate grade spells of various elements. 

He was currently meditating to get his mind in the right form. He then began with the spell he used the most but had shockingly never mastered, Blink. One would think his most frequent basic spell was Sparks but that was wrong. 

Blink was something he used often, even while he was here. Darius meditated upon the path for Blink and realized the flaws in his casting that caused him to require more mana, among other things. 

After noting the problems and how to fix them, he began practicing directly by blinking out of the settlement repeatedly. Each time he did so, he discovered a new problem that hampered his progress and would adjust it on the spot. 

Now that he was actively looking to improve his magical prowess and dedicated all of his mental resources to it, his progress was lightning fast, especially concerning Basic spells. 

He charged through most of them practicing and learning them until he felt like he had reached the very limits of their power. Without the Supreme System to invest SP into a maxed basic spell to upgrade it, this was the limit. 

Like this, Darius continued to make up for his failings in the past.. Despite his own estimation, he ended up taking around 5 years before he was done with his task.