This is one of the decks that you use while playing as Yami Atem in the new version of The Legacy Of The Duelists, a Yu-Gi-Oh! video game. Its contents are based on the cards that Yami used against Dartz Emao in the thirty-third, thirty-fourth, thirty-fifth, thirty-sixth, thirty-seventh, and thirty-eighth episodes of the fourth season of Yu-Gi-Oh!: Duel Monsters.
Note #1: Although this deck is included with a purchase of the current version of the game, you had to make an in-app purchase to play with it in the original version.
Note #2: If you made that purchase in the original the contents of this deck were slightly different. To play with the original deck, remove 1 "
Queen's Knight" card, 1 "
Graceful Charity" card, and 1 "
Amulet Dragon" card, and transfer the side deck to the main deck.