Dimitri Dimitri , known as Kagurazaka in Japanese , is a Ra Yellow student who tends to mimic other people ' s Decks , impersonating the owner of the Deck in almost every detail . Design . Appearance . His appearance mimics Yugi - he has similar , but smaller bangs that fall over his face , his jacket flares out from the waist just like Yugi ' s did and the patch on his shirt bears the shape of the Millennium Puzzle . When impersonating Jaden , he uses Jaden ' s Slifer Red wardrobe and even styles his hair in a similar albeit messier fashion . Personality . His personality changes depending on who he is impersonating . Dimitri could be a jab to the phenomenon of netdecking and Cookie Cutter Decks , as he attempts to win Duels by copying the strategies and mannerisms of known professional Duelists is very similar . In the dub , Dimitri mimics Yugi ' s voice when he uses Yugi ' s Deck . He also refers to his Spell Card s as " Magic Cards " , as this was the term used in the original " Yu - Gi - Oh ! " series before the revised printing format of the " TCG " took effect . Also during his turn s , the Duel score from the original series is played as opposed to the " GX " score . Biography . Dimitri is first seen trying to get a ticket to see Yugi Muto ' s Deck on display by Dueling Syrus Truesdale for the last one with Syrus trying to get it for Jaden Yuki as he already had one . After losing a Duel against Syrus Truesdale with a copy of Dr . Crowler ' s Deck , he got desperate because he had researched the strategies of many strong Duelist such as Yugi Muto , Seto Kaiba , Zane Truesdale and Dr . Crowler while still unable to win Duels , so he decided to steal Yugi ' s Deck from its display case during the exhibition . He successfully does so late at night and believes that he will become all - powerful with this Deck . When Syrus caught him with the Deck outside on the rocky harbor area , Dimitri duels him to test out the power of Yugi ' s Deck . Dimitri defeats Syrus , and Jaden then challenges Dimitri to get the stolen Deck back . During the Duel he actually manages to convince himself that he " is " Yugi . In the Japanese version this happened towards the end of his Duel with Jaden , while in the English dub it happened beforehand . Despite having the Deck in his possession , Dimitri is defeated by Jaden with the explanation to him being that he lacked the same heart that Yugi put into creating his Deck . Apparently , the message doesn ' t get through , as he then goes on to impersonate Jaden . In both the English and Japanese versions , he proceeds to mess up Jaden ' s signature pose and catchphrases , though said phrases differ between the two . He made a cameo in episode 179 watching Jaden ' s Graduation ceremony in his original clothing . Deck . Anime . Cookie Cutter . Dimitri lacks an original Deck of his own and is seen playing Crowler ' s " Ancient Gear " Deck and Yugi Muto ' s stolen Deck . However in both versions , he makes a quick reference to having used Seto Kaiba ' s ( an unlikely boast , as in the continuity only Kaiba possesses a Blue Eyes White Dragons ) and Zane Truesdale ' s Decks . After his final loss , he made a Deck resembling Jaden ' s . Yugi ' s . Dimitri steals Yugi ' s Deck , which was displayed in a special room within Duel Academy , and uses it in two Duels to " test " its strength . The Deck focused on retrained " Chaos " versions of Yugi ' s " Chaos " Ritual monsters . Duel Academy . 37 Main Deck cards and 4 Fusion Deck cards currently unknown . Spirit Caller . When first faced in his event , Dimitri uses Immortal Magicians , which utilizes a lot of Yugi ' s cards from the anime . After said event , he resolves to be more original with his Decks , and rotates periodically between an Ancient Gear Deck , an improved Spellcaster Deck , and an Exodia Deck .