Card Kingdom: This kid's codex is full of gold

[You have ambition! This legal code supports you!]

There are two more underground palaces in this city; go and explore them when you have time.

By the way, do you know the locations of those two underground palaces?

"Of course I know, it's common sense."

"One of them is located at Jiangcheng No. 2 Middle School. It is the Miluotao Underground Palace, and the projection of the sacred beast is a golden bull's head."

"The other one is in the Hunter's Guild, called the Thunder Serpent Palace, and the sacred beast projection is a four-armed Naga."

"Tomorrow I'll go to No. 2 Middle School to pay back the money I borrowed to my friend, and while I'm at it, I'll just go straight through that Milotau Palace."

[Just a heads up, when you challenge the second dungeon, your combat power, and that of your card beasts, will be suppressed by 10%.]

[At the same time, the combat power of the boss guarding the second dungeon will increase by 10%.]

To be on the safe side, you should collect another batch of low-level cards later and try to synthesize another unique card.

With two legendary cards and a gold card in hand, you can easily win even if your combat power is suppressed.

"clear."

Zhang Yun nodded and said, "I'll go to the card shop later and sell all the low-tier bronze cards."

"Part of it was used to pay off loans, and part of it was used to purchase trading cards."

"If I find suitable low-tier cards later, I'll buy them in bulk and fuse them to create my second main card!"

At this moment, the golden light enveloping Zhang Yun gradually dissipated.

Immediately afterwards, a golden token appeared in front of him, one of the rewards for a single pass: the Frostwolf Token.

With this Frost Wolf Token, Zhang Yun can use it to escape at any time when challenging the Frost Wolf Dungeon in the future.

But this thing is pretty useless...

He can solo the Frostwolf Citadel, what use is this thing to him? He should probably find a way to sell it...

As if reading his mind, the Codex Spirit reminded him: "Don't underestimate this Frostwolf Token."

This item is a token for challenging higher-level dungeons.

Zhang Yun asked in confusion, "What the hell is a high-level underground palace?"

The Codex Spirit explained: "The so-called high-level dungeons actually refer to the top-ranked dungeons among the seventy-two dungeons."

The seventy-two underground palaces are divided into three levels: upper, middle, and lower.

[The Frostwolf Palace, the Milotau Palace, and other dungeons are considered upper-level dungeons among the seventy-two dungeons, suppressing challengers to levels below the second tier.]

[In the mid-level dungeons, the challenger rank will be appropriately relaxed, suppressed to below rank four. Correspondingly, the monster rank in the mid-level dungeons will also be raised to around rank three.]

[In the lower levels of the dungeon, the challenge level will be suppressed to below the sixth rank, and the strength of the monsters in the dungeon will reach the fifth rank.]

The middle and lower levels of the underground palace should not be challenged casually.

At least six tokens from the upper level of the dungeon are required to qualify for the challenge.

Zhang Yun nodded knowingly.

This information is far removed from the average summoner and is not often mentioned in textbooks, but Zhang Yun occasionally comes across similar content while browsing his phone.

He had initially taken it as a joke and didn't really believe it.

Now that he heard the Codex Spirit say this, he could be certain.

The middle and lower underground palaces were still far away from him, and he was too lazy to think about them.

However, this Frostwolf Token is indeed important and must be kept safe.

"It's time to go out and return the token to that old man."

Zhang Yun looked at the Slime Tyrant standing respectfully beside him and smiled, "Tyrant, you've worked hard this time. I'll buy you some energy crystals to eat when we get back."

"Why don't you go back to the legal code first?"

The Slime Tyrant kept shaking its head, its massive body hunched over, pointing its index fingers at its chest like a child, looking aggrieved.

As its master, Zhang Yun could naturally understand its emotions and asked, "You don't want to return to the Codex?"

The Slime Tyrant nodded.

Although it looks big and fierce, it is actually still a baby and doesn't want to stay in that cold code space.

Zhang Yun's lips twitched, and he said, "But you're too big. If I bring you along, I'm afraid the teacher won't let me into the classroom."

Coo-coo—!

The Slime Tyrant understood Zhang Yun's concerns and leaped up, its body transforming into a giant ball of blue water.

The water mass compressed and tightened rapidly, and in the blink of an eye, it transformed into a blue slime about ten centimeters long, hovering in mid-air.

It looks almost identical to a regular slime.

"You can even shrink?"

Zhang Yun quickly reached out and cupped it in his hands, laughing, "Since you can shrink, you don't need to go back to the Codex. You can stay outside as long as you want."

Zhang Yun placed it on his shoulder, and the Slime Tyrant's eyes shone with joy as it rubbed its jelly-like body against Zhang Yun's cheek.

Zhang Yun affectionately patted its head, then reached out and grasped the Frost Wolf Token floating in front of him, channeling his soul power into it.

hum!

The Frostwolf Commander erupted with a dazzling light, enveloping him.

When the light faded, it had already disappeared into the underground palace.

He opened his eyes, and there he was, standing in front of the boundary marker.

He gazed at the stone tablet before him and felt as if he were in another world.

This underground palace trial, though short in duration, was the most exciting time Zhang Yun had experienced in the past decade or so.

Thinking of the immense power and cards he had acquired, Zhang Yun could no longer suppress the smile that spread across his face.

Just as Zhang Yun was about to turn and leave, the space beside him rippled with teleportation once again.

Immediately afterwards, three figures stepped out from the light and landed less than two meters to his side.

Each of them had a gleaming silver codex floating beside them, signifying their status as high-ranking summoners, which was awe-inspiring.

However, they are not in very good condition.

Their school uniforms were covered in ice shards and bloodstains, and each student was as pale as a sheet, barely able to stand, clearly due to severe mental exhaustion.

Zhang Yun naturally recognized the three people—Dugu Ying, Lu Ming, and Zhao Long.

These three are star students at Jiangcheng No.1 Middle School, and are also known as the "Big Three".

In the past, Zhang Yun would have been secretly excited to see the three of them.

After all, these three are big shots, even stronger than his homeroom teacher.

But at this moment... Zhang Yun had already dispelled their illusions.

The Big Three? By the time he reaches his senior year of high school, he'll be a Big Three too.

Moreover, with his possession of Dark Gold cards, he is no ordinary giant, but undoubtedly a super-giant!

With that thought in mind, Zhang Yun stopped and walked out of the stone chamber.

The three giants naturally treated him as if he were invisible.

Looking at Zhao Long's ashen face, Dugu Ying couldn't help but cover her mouth and chuckle: "Longzi, look at you, your face is as black as the bottom of a pot."

"Please, can you not be so stingy? It's like you can't handle losing."

"Hmph, you got the card, you're happy now!" Zhao Long snorted and turned his head to the side.

He didn't draw the mutated silver card or the golden dragon wolf card, so he was naturally unhappy.

Lu Ming laughed and said, "Stop arguing, let's go out. This time we encountered a mutated silver leader, which took quite a while. I wonder if we lost to the people from No. 2 Middle School."

"If we lose, we'll have to fight tooth and nail at the Milotau Underground Palace tomorrow when we go to the Second Middle School."

"I want to see my ranking on the boundary marker!"

Dugu Ying curiously examined the boundary marker.

"Hmph, what's so interesting about teaming up to clear the game?" Zhao Long said with a dark face, turning around and walking outside.

"Wait for me, Zhao Long."

Lu Ming also felt that there was nothing special about clearing the level in a team, so he followed Zhao Long's lead to comfort him.

Tomorrow they're teaming up to challenge the Miluotau Underground Palace at No. 2 Middle School, so they need to work on building rapport among themselves.

Dugu Ying was very curious and wanted to see her ranking.

She looked down at the bottom of the stone tablet with great interest, searching for her name.

At that moment, she sensed something was wrong...

"Eh... That's strange, the ranking on these stone tablets seems different from before..."

"Could it be my imagination?"

She couldn't help but glance at the first-place winner, then looked down.

When she saw the third place, her pupils suddenly contracted to pinpoints!

Zhang Kuang, who was originally in third place, has been overtaken and has become fourth.

And the person who took that name was none other than Zhang Laomo, who had just invited them to team up?!

"Old Devil Zhang, how is that possible?!"

She felt as if she had seen a ghost, and couldn't help but look at the completion time after Zhang Laomo's name...