After experimenting for so long, Roy still understood what kind of function these energy cubes possessed. If Pokémon grew and trained while consuming them, their already-fixed potential could be gradually changed during the growth process through cooperation with the energy cubes.
Roy had also asked his other Pokémon about their experiences. Although they often consumed such items, they all said that once they ate one on the first day, they absolutely wouldn't eat another the next day. This was because these cubes were similar to a concentrated energy source—if there was no way to completely consume all the power within that energy source, then rashly taking a second energy cube would make them feel very overwhelmed and uncomfortable.
When they hadn't fully digested the first energy source, they would never touch a second one, because consuming it prematurely would cause significant discomfort. Rather than risk accepting this very uncomfortable feeling, it was better to simply proceed step-by-step and fully absorb the first cube before touching the second.
But within Roy's team, there was one exceptional case.
This small energy cube—just a tiny morsel that some Pokémon couldn't even consider a single bite—could directly sustain a Pokémon's energy consumption for about three days.
However, for Lucario, who was eager to become stronger, although he trained extremely hard every day and consumed massive amounts of energy, with the help of such an energy cube, he could consume one almost daily. His body maintained a steady stream of physical stamina, which made him very satisfied.
According to the system's explanation, these small energy cubes could provide more than just simple physical stamina and energy recovery.
There was also an additional effect: if one specialized in certain aspects through focused attribute training, the training results for that day would directly increase in effectiveness. For example, if someone originally possessed 400 points of strength, but after consuming a small energy cube and then engaging in strength training, after just one day, that 400 strength would become 401—showing the most direct growth possible.
Small energy cubes were valuable in themselves. After all, it cost a thousand popularity points to exchange for just one. If not for the fact that Roy's Pokémon roster continued to grow, and because of his fame, new popularity points were constantly being generated, he would have been overwhelmed by these consumption costs long ago.
It was indeed very difficult for humans and Pokémon to communicate. Only some wealthy people could distinguish what their Pokémon were saying through special translation devices. Although some people had formed deep enough bonds with their Pokémon that even when speaking different languages, they both understood what the other was thinking—Roy had not only formed very deep bonds with all his Pokémon, but with the Aura power he could control, no matter who it was or what kind of Pokémon, they could understand what Roy said, and Roy could understand what they communicated.
"Haha, I have as many of these things as you want, but what kind of treasure do you have that you can exchange with me? If it can satisfy me even a little bit, it's not impossible for me to advance you what you want first."
Strength training could directly increase physical power, which was necessary, but the effect visible each day was typically very small. However, with the help of such a small energy cube, the original efficiency of only ten percent became one hundred percent instantly.
"For this exchange, I hid something in a very secretive place. No one can find it except me, but in order to trade with you, I'll have to retrieve it. I hope it will be useful to you."
Roy nodded and used the power of Aura to ask Zeraora to bring out whatever treasure it could use for exchange. In this way, they could complete a fair transaction between Pokémon and human. After all, only through honest and fair exchange could such items rightfully belong to Zeraora.
Zeraora didn't hesitate at all. Its body transformed into golden lightning once again, breaking through the surrounding air as it raced toward the distance at maximum speed. Just like when it had first arrived at Roy's side—like a streak of golden lightning, very obvious and dazzling—its departure was as beautiful as its arrival had been.
Roy didn't fully understand what treasures this world held. After all, sometimes the common knowledge he possessed had long since diverged from the actual facts of this world. So what if he knew some basic information?
A day passed.
The bands on Lucario's paws and the rings on his head-spikes emitted a dimmer light than before—he had increased the pressure setting while no one was watching.
At the same time, he lifted his head and called out to the Pokémon positioned above the waterfall.
Even without directly indicating what Lucario was requesting, as old friends and companions who understood each other perfectly, how could they not guess his intentions? Perhaps as early as two days ago during preparations, they had already anticipated this request and prepared accordingly.
Countless pieces of wood cut into sharp cones and pointed objects could be seen everywhere. They seemed ready to throw these items down from the height of ten thousand meters.
Fortunately, no humans were present here. Otherwise, even a relatively strong Pokémon wouldn't be able to withstand such a barrage falling from above.
These obstacles were thrown down one after another by the other Pokémon companions, with stones mixed in among them.
Whether it was a one-kilogram piece of wood or a one-kilogram stone, as long as it dropped from such a tremendous height, the impact force it could generate was enough to penetrate a passing vehicle.
Let alone affecting a mortal body—but Lucario, while working on his body's toughness, hadn't yet attempted these more difficult challenges that required intense focus and concentration.
Under the impact of this turbulent water flow, his body couldn't move at all, and the force he had to endure was already substantial and heavy.