The The Valuable Book 12 promotional cards are two promotional cards, included with copies of The Valuable Book 12. The cards include 2 Ultra Rare Synchro Monsters, "Underground Arachnid" and "Zeman the Ape King", both of which were Dark Synchro Monsters in the Yu-Gi-Oh! 5D's anime.
|Set number||English name||Japanese name||Rarity||Category|
|VB12-JP001||Underground Arachnid||Ultra Rare||Effect Synchro Monster|
|VB12-JP002||Zeman the Ape King||Ultra Rare||Effect Synchro Monster|