UltimateKuribohProduct description is as follows:
Are you on ‘Team Yugi’ or ‘Team Kaiba’? Pick a side, because It’s Time to Duel with more of Yugi and Kaiba’s classic cards and strategies reborn for the modern era of Dueling in Structure Deck: Yugi Muto & Structure Deck: Seto Kaiba!
Structure Deck: Yugi Muto refits the Magnet Warriors into new Electromagnet Warriors that attract each other from the hand, Deck, and Graveyard, and combine into the mighty Berserkion the Electromagna Warrior!
Duelists can play these new cards on their own, but if they use them with the original Valkyrion the Magna Warrior, also included in this Structure Deck, they can Summon the new Imperion Magnum the Superconductive Battlebot! Imperion Magnum clocks in at 4000 ATK and can negate your opponent’s Spell Card, Trap Card, or monster effect.
Structure Deck: Seto Kaiba revamps the original XYZ-Dragon Cannon Union strategy and introduces 3 new combining mechanized Union monsters: A-Assault Core, B-Buster Drake, and C-Crush Wyvern!
These new monsters have new and improved Union abilities and extra effects that help you assemble all 3 on the field. When you do, you can combine them to form ABC-Dragon Buster, a mechanized war machine that can banish any card on the field during either player’s turn!
Each Structure Deck contains:
40 Common Cards, 3 Super Rare Cards, 2 Ultra Rare Cards,
1 Dueling Guide, 1 Rulebook & 1 Deluxe Game Mat
Configuration:
45 cards per Deck
8 Decks per Display Box
12 Display Boxes per Case
Name, design and contents subject to change.
The release date is set for December 10, 2026. As of this article's publication, only the European version of yugioh-card.com has posted this, implying that the reprinted products are for Europe only.
Regardless, the Yugi Deck provides a nice way to obtain first-time reprints of "Imperion Magnum the Superconductive Battlebot" and "Berserkion the Electromagna Warrior", as well as reprints of the foiled Electromagnet Warriors. While the Kaiba Deck provides a first-time reprint of "A-to-Z-Dragon Buster Cannon" (all of its other cards have been reprinted in some form).
Sources: https://www.yugioh-card.com/eu (Link 1 and Link 2)