Anomaly

"Moreover, there's something I need you to confirm," the Keeper asked, a hint of confusion in his tone.

"What do you want me to confirm?" Daniel inquired.

"It's this..." The Keeper retrieved a black box with no designation or label from the storage behind the shop and placed it on the counter.

He opened the box, revealing the same number of booster packs as a normal box set. However, there was nothing indicating which set these were from or what Daniel could expect from them.

"What is this?" Daniel picked up one of the booster packs, its package wrapped in black plastic with no information about its contents. Unlike special boosters with rare cards, this one offered no hints.

"How much is this?" Daniel asked, showing the booster pack in his hand.

"1500 points, sir," the Keeper replied.

"Three times more expensive than the normal set? Okay, I'll try this one," Daniel accepted the price, and his points were deducted.