Dennis McField Dennis McField , spelled Dennis Mackfield in the Japanese version , is a character in the " Yu - Gi - Oh ! ARC - V " anime . He is an exchange student from the Leo Institute of Dueling School for the Performing Arts ( Broadway campus in the Japanese version ) and belongs to the Xyz Summon course . In reality he is associated with the Duel Academy from the Fusion Dimension . He is a former member of the Lancers . Design . Appearance . Dennis has bright curly red hair hanging down to his chin in crumpled spikes , green eyes , and a beauty mark below his right eye . He wears an odd ensemble of clothes , a long - sleeved blue collared shirt with a purple bow tie around his neck , and an orange jacket on top of that missing the right sleeve and with a shortened hang on the right side , as well as a black glove on his left hand , and dark pants and red shoes . His unique clothing with two different sides possibly foreshadows his actual task as a double agent , working for both the Lancers and the Academy . He keeps his Duel Academy pin hidden under his collar . During Turbo Duel s , Dennis wears an orange and grey jumpsuit with a maroon helmet . Personality . Dennis is described as a well - rounded and charismatic individual with a sense of humor , yet can also be serious at times . As an admirer of Yusho Sakaki he runs a Deck that seems to mirror his and Duels as a Dueltainer , thus he is often flashy and enjoys performing acrobatics . When excited he seems to be rather air - headed and tends to forget about anything else at the moment , as seen when he wanted to talk to Yuya since he is the son of Yusho and enjoyed his Dueling , only to be interrupted in the still ongoing Duel by the Bandit Warrior Academy students ' offensive , forcing him to block their attempts at damage while showing comical frustration at their interference . This doesn ' t , however , prevent him from being distracted when he spots the Obelisk Force while attempting to make a move in his Duel against Celina . Despite his penchant to gather attention to himself as an entertainer , he does not seem to mind sharing the spotlight since he took the opposing attacks himself in favor of Yuya doing the honors , believing him more adequate for " the finale " . This sense of modesty is also seen after his defeat against Shay Obsidian , where he admits that Shay won . After he is revealed to be associated with Duel Academy , his personality remains largely the same , unlike Sora Perse . Dennis demonstrates a degree of regret when Halil and Olga encountered him and Yuri , as he knows what Yuri will likely do to them , but at the same time , makes no move to stop him or the Obelisk Force . He pragmatically avoids his identity being compromised during the Battle Royal and internally panics when he thinks that Declan Akaba has found him out . Despite this he was still willing to work with the Lancers in stopping Duel Academy , possibly in order to keep his cover . Dennis truly enjoys being an entertainer , and seems to like spending time with his fellow Lancers . Nevertheless , he is loyal to his dimension ' s cause and despite knowing the consequences , he green - lit the Invasion of the Xyz Dimension after discovering Lulu . Despite this , he can be just as cruel and sadistic as several Duel Academy agents , vowing to destroy Shay slowly before his second Duel with him began . He showed noticeable annoyance and anger at Shay for " taking off his mask " as the Duel progressed , and after being forced into a corner , Dennis reveals his true colors and his usual cheerful tone becomes more maniacal while declaring it a " Hunting Game " . After his final defeat , he is approached by Yusho , who says that his Duel brought a lot of smiles , and he can bring more if he rejoins the Lancers . Dennis , feeling guilty for his betrayal against the Lancers , refused . But he is still a good loser , fulfilling Kite ' s demand as well as Rin ' s location . As per his loss , he cannot return to the Professor , and carries out one last thrilling show by carding himself . Biography . History . Dennis was sent to the Xyz Dimension prior to Duel Academy ' s invasion . There he posed as a resident of Heartland City and often gathered large crowds of people while entertaining as a street performer . During one such event , he spotted Lulu Obsidian in the crowd . Knowing she was one of Duel Academy ' s targets , he used his " Performage Trapeze Magician " to draw her away from the crowd and the two became friends . Though he regretted having to abandon his street performances he nonetheless contacted Duel Academy to green - light the invasion of Heartland . After the invasion commenced , Dennis learned the location of the Resistance ' s base and called in Yuri . He pointed out who Lulu was before retreating , thus allowing Yuri to Duel and capture her . At some point while in Heartland , he seen Yusho Sakaki performing and his desire to become a Dueltainer awoken , even becoming one of his students . Arc League Championship . Dennis made it through the preliminary rounds of the Arc League Championship , getting into the Top 16 . He joined 14 of the other contestants ( minus Shay ) in the Stadium for the announcement of the Battle Royal section of the tournament , where they were told that they would need to collect Pendulum Monster s to progress . Dennis ended up in the Volcano area , and he saved Yuya Sakaki , the son of Dennis ' s idol Yusho Sakaki , from defeat by Bandit Warrior Academy students Nagi and Taka with his " Performage Damage Juggler " . But Dennis ' s interference cost him 2000 LP , but he continued to support Yuya , saving him from the continued attempts at damage by Nagi and Taka ' s monsters . Unconcerned with the situation , he explained his history to Yuya and his admiration of Yusho . When it came to Yuya ' s turn again , Dennis encouraged him to perform the finale , and he successfully calmed Yuya down after Yuya was worried that he was exhibiting the same symptoms that he did in his Duel against Iggy Arlo . Dennis used his " Performage Trapeze Magician " to support " Dark Rebellion Xyz Dragon " and the two of them won the Duel . After parting ways with Yuya , Dennis encountered Zuzu Boyle and cornered her into having a Duel with him . He told her he wanted to become a Dueltainer like Yusho Sakaki , and she accepted , interested to see how he Dueled . He ultimately defeated her by turning her own " Bloom Diva the Melodious Choir " against her , and she gave him two Pendulum Monsters as per the rules . He wished her luck on making it through the tournament so they could Duel again , but then Celina showed up and challenged him to a Duel , and he was surprised to see that she and Zuzu looked the same . Celina accused him of being a remnant from the Xyz Dimension , which he denied , but nonetheless accepted her challenge , despite Zuzu ' s protests that they were in the middle of a tournament . He acknowledged that Celina was mistaken about something , but adapting to situations like this was part of Dueltaining . He quickly Summoned two Level 4 monsters , setting himself up to Xyz Summon , but then realized that an Xyz Summon would just confuse Celina even more , and instead played " Bubble Barrier " to protect his monsters . This ultimately failed , as Celina was still able to destroy both of his monsters and damage him significantly in her next turn . Dennis then decided to play seriously , and drew his next card , but was horrified to see that it was " Polymerization " . Realizing he couldn ' t win , he merely Set a monster and another card , which prompted Celina to accuse him of underestimating her . He tried to protest , but Celina refused to hear of it . Celina managed to switch Dennis ' Set monster to Attack Position , meaning that another attack would cause him to lose ; he was about to activate his face - down card in response , but then he saw Obelisk Force arriving , which distracted him long enough for the attack to land , ending the Duel . Despite being defeated , Dennis somehow still managed to locate and eavesdrop on Celina and Zuzu after the two had been taken to the Arctic Zone by Celina ' s bodyguards . Listening in on Zuzu and Celina ' s conversation he managed to discover Zuzu ' s plan to swap clothes with Celina so that Celina could locate Shay undetected by the Obelisk Force . Contemplating what do with this information , Yuri appeared before Dennis who had been waiting for him , revealing his true affiliation with Duel Academy . Dennis informed Yuri that Zuzu and Celina have swapped clothes before he went to the Jungle Area where Yuya and the others were . There , he informed Yuya where Zuzu was . However , when they arrived , Zuzu was gone , so Dennis came to the conclusion that Yuri had successfully captured Zuzu . He later separated from Yuya and Gong , leading the Obelisk Force to Celina , but not assisting him due to wanting to preserve his cover , and noting the arrival of Reed Pepper and Trout . When the Battle Royal ended , Dennis kept Aura safe and claimed when Yuya asked that he ' d searched for Zuzu , but only found Aura . Declan arrived and informed the group that he had seen their Duels , and Sylvio revealed that the Battle Royal had been to select the Lancers . Friendship Cup . Dennis was planning to take Celina back with him to Duel Academy after events had quieted down , but was unable to when she revealed to the rest of the Lancers that she was from Duel Academy . He watched the subsequent Duel between Yuya and Declan . He was both impressed and shocked to learn of Declan ' s skills in Summoning techniques , informed by Gong , Sylvio and Yuya of the extent of Declan ' s skill . He was surprised when he heard Yuya claim that Zuzu must have been sealed in a card , wondering if that meant that Yuri had failed and that she ' d been captured by the Obelisk Force . When Declan claimed that Zuzu could be alive , Dennis panicked , wondering if his identity had been compromised . He was present the next day at Leo Corporation , where the Lancers were informed that they would be going to the Synchro Dimension to recruit allies in the fight against Duel Academy . When Celina deduced that Zuzu was actually in the Synchro Dimension , Dennis panicked again since this meant that Yuri had failed . They departed with their Duel Disk s upgraded to travel between dimensions and project an Action Field . After arriving in the Synchro Dimension , Dennis and Gong were separated from the other Lancers . Dennis came up with the idea to entertain people with a magic show , which resulted in him making a good deal of money . After seeing Melissa Trail , Dennis saw it as the opportunity to find Yuya by Dueling Gong and setting the Duel up as hero vs . villain . At first , Dennis tried to setup Gong as the villain , but Gong opposed it and due to his Synchro Summon , he was seen as a hero . Dennis then wore a mask and acted as a villain . He managed to use both Pendulum and Xyz Summon ing methods to entice the audience and Lucas Swank . After Gong won the Duel and Dennis was collecting his winnings , Lucas appeared before both Dennis and Gong and offered them an opportunity . After almost reaching the entrance , Dennis had to convince and remind Gong why they were following Lucas . Luxas then dragged both Dennis and Gong into the elevator and took them to the Underground Dueling Arena . There , they both saw Shay Turbo Duel ing and defeating Hunter Pace . After talking with Shay and learning that he was looking for strong Duelists , they both learned that Shay was Dueling to enter the Friendship Cup and then Duel Jack Atlas . After Shay insulted Dennis ' Xyz skills from LID , Dennis retaliated by insulting Shay ' s Xyz Monster s . This allowed Dennis to challenge Shay to a Turbo Duel to see who was better after Dennis learned of what they were . At the beginning of the Duel , Shay was handicapped with 1000 LP while Dennis started with the standard 4000 Life Points . Shay immediately set the pace by reducing Dennis ' Life Points to 2400 . Dennis however countered and reduced Shay ' s LP to 100 with " Trapeze Magician " . Shay then began to question the validity of Dennis attending LID and then lowered his LP to 100 as well . Dennis then countered by Pendulum Summoning two " Performage Wing Sandwichman " and " Performage Ball Balancer " to the field . This once again left the audience in awe . Dennis performed a Pendulum - Xyz Summon to bring out " Performage Shadow Maker " and destroyed " Blaze Falcon " , but Shay nullified the damage and brought out " Raidraptor - Revolution Falcon " using " Shadow Maker " as the Xyz Material . Dennis was able to climb back into the Duel by using the effect of the targeted " Shadow Maker " to Summon another , but at that moment , Sector Security interrupted the Duel and shut down their Duel Runners , causing Dennis to crash . He was quickly surrounded and arrested . Dennis , Gong and Shay were all sent to the Facility . Shay was sent to solitary confinement on the first day , leaving just Dennis , Gong , and two other inmates in their shared cell . After Gong bribed a guard into preventing the inmates from being bullied , Dennis used his cards to bribe the dinner server to ensure that the inmates got enough to eat . Yuya , Sylvio , and two Commons , Crow Hogan and Shinji Weber , arrived in their cell on the next day . Dennis explained their capture to Yuya . He later joined Gong in urging the group to calm down after being bullied . Dennis was present during Yuya ' s Duel against Chojiro Tokumatsu , the " boss " of the prisoners , and expressed shock at Chojiro ' s tactics . After Yuya ' s victory against Chojiro and Chojiro ' s return to his previous outlook , an Entertainment Duel tournament was organized in the Facility , but in reality it was being used as a cover by Crow , Shinji , and new inmate Damon Lopez for an escape . When Dennis learned of the plan , he aided in the escape by going to rescue Celina from solitary . He alerted the other Lancers of the success of their escape after they defeated the Stomptroopers and they attempted to swim from the Facility island . However , they were re - arrested , this time personally by Sector Security Director Jean - Michel Roget . Envoys of the High Council intervened on Declan ' s behalf , and the Lancers were inducted into the Friendship Cup to prove their strength to the Council . Dennis was moved to a penthouse for the duration of the Friendship Cup . He watched the Duels of the first day of the Cup and displayed concern for his fellow Lancers and Zuzu as they Dueled . He was mildly disappointed that he didn ' t get to Duel on the first day , but resolved to entertain the crowd the following day . He and Shay were chosen as the participants for the final duel in the Cup ' s first round . After performing a magic trick from his Duel Runner and arriving at the starting line , Dennis commented on how they would have to put up a good Duel despite being friends . Shay responded critically , having his suspicions about Dennis ' true identity . The two reenacted much of their previous Duel in the Underground Duel Arena , with Shay summoning " Raidraptor - Fiend Eagle " again and Dennis bringing out his " Performage Trapeze Magician " and " Performage Shadow Maker " once more . Dennis attempted a FTK with the former monster and three copies of the latter , but failed due to Shay ' s " Rank - Up - Magic Doom Double Force " , which Dennis predicted was " Raid Force " instead , and the subsequent summon of " Revolution Falcon " . Dennis tried his best in protecting his " Trapeze Magician " from Shay ' s assault by sacrificing all three of his " Shadow Makers " with " Battle Change " and " Performage Magic Tactician " , but he failed , leaving him with no monsters on the field . Shay ' s " Raidraptor - Target Flag " also forced Dennis to reveal his hand , and " Polymerization " was the only card there . Confirming Shay ' s suspicions , Dennis drew and activated " Chaos Ancient Gear Fusion " , using the defeated " Performage " Xyz Monsters to Summon " Ancient Gear Hunting Hound " and its three Chimeric Fusion versions , and fused them into " Chaos Ancient Gear Giant " . Shay remembered that monster from the invasion of his dimension . Dennis then declared the start of a new hunting game , confirming his Duel Academy roots . " Chaos Giant " rendered Shay ' s combination of " Raidraptor - Lock Chain " and " Raidraptor - Reactor " useless , but he was able to survive the attack of " Chaos Giant " with " Raidraptor - Last Strix " . Regardless , the attack on " Revolution Falcon " laid waste to the arena , debris being thrown everywhere . Dennis then revealed to Shay how he was involved in Lulu ' s kidnapping and green - lit the invasion . Enraged , Shay counterattacked by using " Rank - Up - Magic Soul Shave Force " to Summon " Raidraptor - Satellite Cannon Falcon " . This monster reduced the ATK of " Chaos Giant " to 500 . Dennis attempted to survive using Action Cards , but the debris from the attack of his own " Chaos Giant " tripped up his Duel Runner and he was unable to and was thus defeated by " Satellite Cannon Falcon " . After the Duel , Dennis admitted that Shay had won before passing out . Still filled with rage , Shay tried to seal Dennis in a card but was unable to do so due to his modified disk , so instead he attempted to punch Dennis but was stopped by the tournament ' s staff , who then carried Dennis off on a stretcher . Friendship Cup Finals . Dennis was being taken to the recovery room when High Council and Sector Security both attempted to take him into custody . Sora Perse saved him and took him away to an alleyway . Sora then revealed his mission to bring Celina back to Duel Academy and sent Dennis back to the Fusion Dimension . Barrett mentioned that he knew that Zuzu was in the Synchro Dimension from Dennis . This makes Yuya confirm Dennis as being a spy . Heartland City . Dennis approached Iggy Arlo , informing him that if he wanted to defeat Yuya , he should come to the Fusion Dimension , as Yuya would eventually show up there . When everyone at You Show Duel School was getting ready to attack Duel Academy , Dennis surprised them by telling them they will never reach Duel Academy . Upon seeing Zuzu , he asked her to come with him and recognized Yugo from the Friendship Cup . He saw Yusho Sakaki and called him teacher , revealing that he first met him in Heartland . Dennis challenged Yusho to a Duel to see if he surpassed him . Dennis brought Duel Academy soldiers with him and revealed he found their hideout from eyewitness reports . When Yusho only Set a card , Dennis got angry and told Yusho he learned new things from being all over the place . He Pendulum - Xyz Summon ed " Performage Trapeze Magician " and used an Overlay Unit to attack Yusho twice . However Yusho activated " Miraculous Hats " , hiding himself under one of the hats . Dennis destroyed both but under the hats were " Wonder Balloons " and " Paper Doll " while Yusho and everyone else ran away . Dennis had his soldiers go to the harbor to prevent them from reaching Duel Academy . When they cornered Zuzu and Yugo , Yuya , Gong , Sylvio , and Kite arrived . Surprised at seeing Yuya again , he told Iggy it was his turn now . When the Lancers spotted Dennis , he brought out more Duel Academy soldiers to capture Zuzu and left . He managed to catch up to Yusho and Alexis just as they arrived on the ship and sailed off . Dennis once again challenged Yusho to a Duel , but was interrupted by Kite who challenged him to a Duel in Yusho ' s stead . Recognizing him as Shay ' s ally and Yusho ' s student , Dennis accepted the challenge . Dennis started his turn by summoning " Performage Trapeze Magician " . Kite responded by Summoning his ace monster , " Galaxy - Eyes Cipher Dragon " . Kite used the effect of " Cipher Dragon " to try to defeat Dennis in one attack , but Dennis Summoned " Performage String Figure " to negate the battle damage . He then Fusion Summoned " Performage Trapeze Witch " and used it together with " Trapeze Magician " in retaliation to try to destroy " Cipher Dragon " , but Kite saved himself and his monster with " Cipher Deterrent " and hung on with 200 LP . To Dennis ' surprise , however , Kite Summoned " Little Fairy " , a monster that Dennis didn ' t expect to be in Kite ' s Deck . Using it and " Rank - Up - Magic Cipher Ascension " , Kite Summoned " Neo Galaxy - Eyes Cipher Dragon " and defeated Dennis with it . Yusho applauded Dennis ' performance and tried to convince him to join them , but Dennis refused . He admitted that the times he spent with the Lancers were fun and he truly enjoyed the Dueltaining he did until now . However , since he had already betrayed the Lancers , he felt he didn ' t have any right to return to them . He also revealed where Lulu and Rin were held captive . Feeling that there was no turning back after revealing the Professor ' s " greatest secret " , Dennis jumped from the ship and sealed himself into a card , much to the shock and dismay of Kite , Yusho , and Alexis . His card was carried by the wind into Yusho ' s possession . Duel Academy . Following the battle against Zarc , Dennis was freed from his card and appeared before Yuya , who was traveling through the dimensional corridor gate , in the Xyz Dimension . He told Yuya that he would be his opponent instead of Shay , due to him going to the Fusion Dimension to save Lulu . When Yuya was about go there , Dennis stopped him since he still wanted to Duel and revealed that he was one of Yusho ' s students . He told Yuya he could go if he won and pointed out the spectators , making him accept the challenge . But when their parents didn ' t want them to watch the Duel , Dennis revealed his " Polymerization " and threatened to seal them back into cards if they didn ' t watch . He Fusion Summon ed " Performage Trapeze Witch " and equip ed " Ancient Gear Mask " it . He attacked " Odd - Eyes Pendulum Dragon " , using the combined effects of " Trapeze Witch " and " Ancient Gear Mask " to weaken " Odd - Eyes " and prevent Yuya from using Spell or Trap Card s , destroying " Odd - Eyes " . When Yuya Special Summoned " Odd - Eyes " back and had it attack " Trapeze Witch " , Dennis used its effect to lower the ATK of " Odd - Eyes " , but Yuya used the effect of " Performapal Miracle Mirrorabbit " to redirect the effect of " Trapeze Witch " to itself . Though " Ancient Gear Mask " prevent the destruction of " Trapeze Witch " , Yuya used the second effect of " Mirrorabbit " to allow " Odd - Eyes " a second attack at the expense of its own . He also used the first effect of " Mirrorabbit " again to allow " Odd - Eyes " to destroy " Trapeze Witch " . When Yuya forced him giving evil persona by announcing that he crossed dimensions to give an amazing Dueltainment , Dennis gave in and Xyz Summon ed " Performage Trapeze Magician " . He then used the effect of " Trapeze Magician " to attack three times but Yuya used " Evasion " for " Mirrorabbit " and " Miracle " for " Odd - Eyes " , destroying " Trapeze Magician " . However , Dennis used " Rank - Up - Magic Magical Force " to Rank - Up " Trapeze Magician " into " Performage Trapeze High Magician " , using its effect to attack three times but Yuya survived with the Pendulum Effect of " " Performage Bubble Gardna " . When Yuya used the effect of " Performapal Sword Fish " to lower the ATK of " Trapeze High Magician " , Dennis used its effect again to prevent its from destruction up to thrice per turn and climbed up Heartland Tower . However , Dennis was defeated when Yuya attacked " Trapeze High Magician " repeatedly using " Challenge Stairs " , " Hope Stairs " , his Monster effect s , and " Miarcle " until it was destroyed . He fell off the tower but was caught by Yuya and both of them responded to everyone who were happily applauding their Duel . When all of the kids wanted Yuya to teach them Dueltaining , he promised them Dennis would be their teacher , who accepted and mentally thanked Yuya as he left for the Fusion Dimension . He is later seen watching Yuya ' s Duel against Jack with the children , telling Yuya to show them the greatest Dueltainment . When Yuya brought out " Dark Rebellion Xyz Dragon " , Dennis cheered Yuya on . He also watched Yuya ' s and Declan ' s Action Duel . Dennis was happy that Yuya won both Duels and was sent to the Pendulum Dimension by Ray Akaba to witness her revival as Zuzu . Deck . Dennis uses a " Performage " Deck . " Performages " are largely focused on preventing effect damage and swarm ing the field for Xyz Summon s such as " Performage Flame Eater " and " Performage Hat Tricker " respectively . Dennis also utilises " Chaos Ancient Gear Fusion " , using " Ancient Gear " monsters in his Deck and Extra Deck for Fusion Summon ing " Chaos Ancient Gear Giant " as a last resort . After traveling to the Synchro Dimension , Dennis uses " Performage " Pendulum Monster s to aid in the swarming of his monsters , as well as using their effects to hinder the opponent and support his Xyz Monsters . This also gives him the capability to Xyz Summon monsters immediately after Pendulum Summon ing the materials . Dennis also uses cards such as " Performage String Figure " to aid in Fusion Summon tactics , without the need for " Polymerization " . Being an admirer of Yusho Sakaki , his " Performage " seems to resemble that of both Yusho ' s and Yuya to an extent with his Xyz ace monster , " Performage Trapeze Magician " being very similar to that of Yusho ' s " Performapal Sky Magician " .