The Pendant was later stolen from teenage Atem, by Thief King Bakura, who used it and the other Millennium Items to Summon Zorc Necrophades. In addition to holding the soul/spirit of Pharaoh Atem himself, the Puzzle is able to fulfill one single wish of the person who had solved it and heighten its owner's chance of success in a game, judging by their skill-level as well as the importance of the game at hand.

Millennium Puzzle : r/yugioh - Reddit The True Power of the Millennium Puzzle : r/yugioh - Reddit

The original flavor text for the " Millennium Shield" stated that it was a Millennium Item; however, it has absolutely no importance to the storyline and does not originate from the Millennium Stone like the other Millennium Items. years before present day events (5,000 in the dub), the Millennium Pendant and the other Millennium Items were forged in Kul Elna by sacrificing 99 souls of the Kul Elna villagers. When his father died, Pharaoh Atem was given the Millennium Puzzle, and in time, Siamon Muran relinquished the Millennium Key to Shada. Thief King Bakura, the sole survivor of the slaughter in Kul Elna, stole the holy DiaDhank from the tomb of Akhenamkhanen.

The Puzzle grants incredible skill at strategy and allows the wielder to use ancient and powerful magic.

Yu-Gi-Oh! Duel Monsters UltimaGear Millennium Puzzle Model Kit Yu-Gi-Oh! Duel Monsters UltimaGear Millennium Puzzle Model Kit

After Yami Yugi collected the Egyptian Gods and presented them to the tablet, he was sucked into the Ultimate Shadow RPG, which was a replay of his life in Ancient Egypt. He failed, and was very nearly killed by a particular trap which caused the floor of the room to collapse (in the manga, he stated that if he fell, he'd be trapped in Yugi's soul forever). During his second encounter with Atem, Bakura stated that the spirits of Kul Elna were trapped in Hell following the ritual, and that he could hear their grudges in said afterlife from the Items.The Millennium Puzzle appears in the Amphibia episode All In, where it is seen in a pile of puzzles that Marcy Wu solved. The Pendant was later stolen from the then teenage Atem by Thief King Bakura, who used it and the other Millennium Items to Summon Zorc Necrophades.

Bandai Ultimagear Yu-Gi-Oh! Millennium Puzzle Release - Hypebeast

It's eventually revealed that Bandit Keith came into possession of the Puzzle; he uses it and the other Items in a ritual to attempt to awaken Ra. Seto Kaiba relied on the KaibaCorp space station’s advanced supercomputer and zero gravity chamber to reassemble the pieces. Yugi managed to solve the Puzzle, while under the pressure of getting money to pay Ushio's self-imposed bodyguard fee. The hieroglyphs inscribed on the puzzle say, "The one who solves me shall gain the powers and knowledge of darkness.The village of Kul Elna became the victim of the Pharaoh's unwitting decree, as Akhenaden had them slaughtered, their blood, bone and flesh melted in with the gold that was cast in the mystic rite that formed the items.