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

Teacher Lu took a deep breath and patiently explained, "The Unicorn Silver Wolf Card has dual attributes, being both ice and wind-based. It is one of the five most precious mutated cards in the Frostwolf Dungeon."

"Its rarity is second only to the Golden Horn Silver Wolf Card."

"Rumor has it that the Silver Horned Dire Wolf has extremely high overall combat strength, surpassing most ordinary gold card beasts of the same rank."

"Although it is a mutated silver card, its value is definitely no less than that of a gold card."

"What's most remarkable is that... its chance of spawning in the dungeon is extremely low, less than one percent."

"A powerful summoner might never encounter it even once in a lifetime of dungeon runs."

"When a weak summoner encounters it, they will basically be crushed, let alone be able to extract its cards."

"Therefore, it is also one of the five rare mutated cards in the Frostwolf Dungeon. No one in our Jiangcheng history has ever obtained one before."

"Well..."

Hearing Teacher Lu say this, Xiao Zhangqi was completely stunned!

He never expected that his cousin would give him such a valuable card, and he was so moved that he almost cried!

At this moment, Zhang Yun gently patted his head and said with a smile, "Actually, this card isn't that valuable. Compared to the gold card in the underground palace, it's much inferior."

"Xiaoqi, keep this card for now. When your cousin becomes stronger, I'll get you some better ones to exchange for."

"Waaah, thank you, cousin!"

Little Zhang Qi was so excited that he hugged Zhang Yun's leg and couldn't help but cry.

Lu Xueqi crossed her arms and smiled jokingly, "Old classmate, you're really generous. You said the Silver Horned Dire Wolf card, which is so precious, is just an ordinary card."

"How about you sell me two of these ordinary cards? I promise you won't lose out on the price."

"Hurrah."

Zhang Yun smiled and replied, "If I really come across a card like that next time, we can get in touch."

"Why wait until next time?"

Lu Xueqi glanced at Zhang Yun's codex and tentatively smiled, "Zhang Yun, since you were able to get a Silver Horn Card, you must have the Frost Dragon Wolf Card in your possession as well, right?"

"Are you planning to sell that Frost Dragon Wolf? If so, could you consider me?"

"I'm quite pitiful. None of the cards in the Codex can compare to your cousin's mutated silver horn."

Lu Xueqi knew her question was somewhat presumptuous, so she asked it in a joking tone.

She understood the concept of a gold card better than anyone else.

Absolutely no one would sell it as a commodity.

However, she didn't understand the poor...

Zhang Yun hesitated for a moment before replying, "I do intend to sell my Frost Dragon Wolf Card, but... I've already promised someone else."

"If you have similar cards to sell next time, we can get in touch."

Upon hearing this, both Lu Xueqi and Teacher Lu's eyes widened simultaneously!

What's going on? This guy actually plans to sell the gold card from the dungeon?

Is he crazy?! Or is he just joking?!

It's important to know that the Sacred Beast Projection Cards produced in the dungeon are of far superior quality to ordinary gold cards found in the wild, and they are unique to each individual player.

In other words... no matter how strong a player is, they can only obtain one Frost Dragon Wolf card in their entire life.

Selling such a valuable gold card is like spilled water that cannot be recovered!

For a moment, Lu Xueqi's breathing quickened, and she hurriedly asked, "Zhang Yun, are you really planning to sell your Dragon Wolf Card?"

"Whatever price they ask for, I can pay 20% more... no, 30% is fine too!"

"For the sake of our old classmates, could you please consider me first? I beg you."

Teacher Lu chimed in, "Zhang Yun, Xueqi is really hardworking, but her deck is a bit weak, so she can't be considered a top-tier student."

"Could you help her? She'll definitely remember your kindness."

Xiao Zhangqi's gaze shifted between his teacher, the older girl, and his cousin, a feeling of admiration welling up inside him, thinking that his cousin was incredibly awesome.

I want to be like my cousin in the future, so that my classmates and teachers all beg him for favors!

Zhang Yun hesitated for a moment, then shook his head: "I'm sorry, I've already promised someone, and I can't go back on my word."

"Besides, I only have the intention to sell."

"If I can raise the money, I'd still be willing to keep the gold card."

Upon hearing this, Lu Xueqi compromised and said, "Then if you release any other good cards in the future, you must consider me!"

"As old classmates, I'm sure you won't get a bad price."

Zhang Yun smiled and nodded: "We'll talk about it later."

At that moment, the cold, discreet notification of the underground palace's rules rang out simultaneously in the minds of the four.

[The second wave of gatekeeper monsters is about to arrive—30 Two-Armed Water Sprites (Bronze Rank).]

As the warning sound rang out, a dense hissing sound came from deep within the tunnel ahead, like a swarm of snakes writhing wildly.

Zhang Yun turned to the two women and asked, "Do you want to fight the second wave of bosses?"

"If you want to do it, you can go ahead and do it."

Zhang Yun really wanted to steal monsters, since he was currently short of money. Killing more monsters and getting more cards would be very beneficial for him.

but...

The other party meant well by wanting to take him and his younger cousin along, so he couldn't be too unseemly.

Teacher Lu shook his head with a wry smile: "Xueqi and I have run this dungeon too many times. The drop rate has long since dropped to an absurd level. It doesn't matter whether we run it or not."

"My aunt is right."

Lu Xueqi laughed and said, "I'm teaming up with my aunt now just to practice grinding monsters; we have absolutely no expectation of getting any rare drops."

"Alright, I'll continue farming the second wave of monsters."

Just as Zhang Yun was about to give the order to the skeletons in the passageway ahead, little Zhang Qi couldn't help but raise his hand and say:

"Cousin!"

"My Silver Horned Leader wants to join the battle too, is that alright?"

"Okay, let it go to the passage ahead and find Kaka."

Zhang Yun ruffled his hair and laughed, "With Kaka leading it, those bronze water demons shouldn't pose a threat."

"Uh-huh!"

Holding the law codex in both hands, Zhang Qi excitedly gave the order to the Silver Horn leader: "Go, King Silver Horn!"

"Help my cousin's card beast defeat all the dungeon monsters!"

Awooo—!

The giant silver wolf raised its head and let out a long howl. With its four limbs pushing off the ground, its silvery-white figure flashed like a bolt of ice lightning, rushing towards the misty tunnel ahead.

"Let's go too."

Teacher Lu smiled as he rode the silver minotaur, clearing the way ahead.

"Let's go. With Zhang Yun here, I feel like we should be able to clear the Naga Dungeon this time."

Lu Xueqi looked expectant as she manipulated her two-armed Naga, standing guard on one side of the group.

Zhang Yun also took Xiao Zhangqi's hand and followed the two women.

"Cousin, are we going to fight the dungeon boss later?" Xiao Zhangqi asked curiously.

Zhang Yun's lips curled slightly. "Absolutely."

"Since we're already here, we definitely have to defeat the final boss."

At this moment, Lu Xueqi turned to Zhang Yun and said, "Zhang Yun, you might have to solo the BOSS level in a little while."

"If you're capable of handling it alone, I won't hold you back."

Teacher Lu thought Zhang Yun was a newbie to dungeons, so he explained, "When you team up to clear a boss, only the person with the highest contribution can get the gold card, and you can no longer carry your teammates to clear the same boss in the same dungeon."

"The other people who cleared the dungeon together will not only fail to get the gold card, but will also be given a layer of debuff from the dungeon."

"From now on, whether you play solo or in a team, the difficulty of the dungeon will increase by 10%."

"So I won't be accompanying you through the final stage!"

Teacher Lu immediately explained the rules of the underground palace to prevent Zhang Yun from misunderstanding that they were deliberately not helping him.

Zhang Yun had seen similar short videos before, and nodded immediately: "Then I'll have to ask Teacher Lu to look after my little cousin for me for a while."

Don't worry.

Teacher Lu smiled kindly at Zhang Qi and said, "Zhang Qi is my student. I would protect him even if it cost me my life."

Upon hearing this, Xiao Zhangqi immediately showered him with compliments: "Thank you, Teacher Lu, you are my most respected teacher!"

Upon hearing this, everyone couldn't help but smile, feeling extremely relaxed.

By the time everyone arrived at the battlefield where the second wave of monsters spawned, the battle was already over.

On the floor of the passageway, dozens of evaporating snake bodies lay scattered about, each one severed in half at the waist, the cuts as smooth as a mirror.

Several deep sword marks are embedded in the stone wall.

Several snake bones, cracked by frost, were stuck in the crevices of the rocks.

The little skeleton stood in the very center of the battlefield, gripping the bone sword in reverse with its right hand, the tip of which touched the ground, while its left hand held a hideous snake head that was slowly evaporating.

The silver unicorn wolf, several times its size, crouched beside it, its silver-gray tail neatly tucked into its side, its head slightly lowered.

Like an obedient younger brother.

At that moment, three streaks of bronze light shot up from the ground and flew towards Zhang Yun...