Yu - Gi - Oh ! 5D ' s - Episode 051 " A Whale of a Ride , Part 1 " known as " Be Resurrected ! Boundary Surpassing Riding Duel " in the Japanese version , is the fifty - first episode of the " Yu - Gi - Oh ! 5D ' s " anime . It first aired in Japan on March 25 , 2009 and in the United States on August 28 , 2009 . Summary . Devack ' s defeat . Using its " Eternal Sunshine " attack , " Ancient Fairy Dragon " emits an invigorating blast of light , causing " Cusillu " to dissolve . Devack ' s hood is thrown back from the blast , as his Life Points hit 0 . The surrounding Monkey geoglyph fades away . Leo compliments Luna on the victory , while she considers the fate of the Duel Monster Spirits , believing to have freed them . Devack , with pitch - black eyes and dust powering from his body slowly approaches the twins . Leo acts as a shield for his sister . Ashamed with his loss , Devack begs for Roman ' s forgiveness and reaches for the twins , who are pushed out his way by Yusei , before he can make contact . The Dark Signer collapses into a pile of dust , leaving the others watch in anxiety . Spirit world . The Monkey geoglyph disappears from the sky and the souls of the spirits return to tablets in Zeman ' s castle , where they are subsequently released . Torunka understands that Luna has managed to free them and informs the spirit ' s of her endeavor . Control unit . Trudge and Yusei compliment the twins on how they performed in the Duel . Ancient Fairy Dragon and Regulus appear in front of the party . Trudge , who refused to accept the existence of such spirits , believes the Solid Vision from the Duel must still be active . However Ancient Fairy Dragon speaks to him , claiming not to be an illusion , which causes Trudge to faint . Ancient Fairy Dragon thanks Luna and informs her of the spirits well - being , thanks to her . Luna is glad to hear , but tells Ancient Fairy Dragon that some of the thanks belong to Leo and Yusei for supporting her . Ancient Fairy Dragon thanks them both in return . Yusei asks Ancient Fairy Dragon for her support in their battle with the Dark Signers . Both the dragon and Regulus agree to help and transfigure into card form in Luna ' s hands . Yusei and the twins proceed into the tower that Devack was guarding . Luna inserts the " Ancient Fairy Dragon " into the control unit . An alarm goes off and the tower begins to rumble . After quickly retrieving her card , Luna hurries outside with Yusei and Leo before the doors close , where they observe as the tower sinks into the ground , leaving no trace behind . Trudge wakes - up finding the spirits have disappeared and believes he must have been hallucinating earlier . With one tower taken down , Yusei makes plans to tackle the remaining three , starting with the Giant , where he will face Kalin . Dark Signers ' lair . Roman observes a lit candle from a three pronged candlestick extinguish itself , signaling Devack ' s defeat . Roman picks up the candlestick and exits the room , vowing to make the Signers pay . He makes his way to a cell , where Greiger is held and calls him out . The two of them make their way to the top of the Ener - D Reactor . He receives Greiger ' s felony of trying to assassinate Rex Goodwin during the Fortune Cup . As punishment , Greiger is to be executed , which Roman plans to carry out himself , right now . inside the Ener - D Reactor is a swirling pool of Ener - D , which Roman says are the Doors to the Netherworld . He tells Greiger that he is now ready to die and be reborn as a Dark Signer . Greiger must first remember what he felt back when he tried to kill Goodwin in order to alite the flames of vengeance within his heart . Reminding him of the destruction of his hometown and the alleged fate of his brother and sister and blaming it on Goodwin , fills with Greiger with his hatred for Goodwin and thirst for revenge . With these necessities fulfilled , unexpected to Greiger , Roman activates a trapdoor , causing Greiger to fall into the pool of Ener - D . Before Greiger makes contact with the Ener - D , a spider on the ceiling shoots a web , which catches him around the neck . With Greiger suspended there , Roman calls down to him , stating that he is giving Greiger a chance to seek his revenge , by making him a Dark Signer , who must defeat Yusei Fudo . Greiger convinces himself that he must defeat Yusei and Roman begins the process . A fountain of Ener - D rushes up , engulfing Greiger . Crow . As Yusei , Trudge , Leo and Luna make their way to the tower of the Giant , Greiger , follows them on his enhanced Duel Runner , The Beast , vowing to defeat Yusei and Goodwin . Meanwhile , on the other side of Satellite , Crow emerges from a refrigerator that he had taken cover in to survive the black fog . He falls forward as he makes his way to the Blackbird and remembers what Lazar had said about running for life , before the black fog appeared . He rides the Blackbird through the streets , learning that everyone has disappeared . He returns to his hideout , at Daedalus Bridge and begins to hallucinate as he thinks he sees and hears the children . As he tries to touch them , he realizes that they are not there . After coming to grips with the reality , he screams out loud , before making his way to the edge of the incomplete bridge . Up there , he spots the Giant geoglyph in the sky over the B . A . D . Understanding a Dark Signer to be there , he mounts his Duel Runner and speeds off in their direction . On the way , Crow spots Greiger on his Duel Runner and ramps out in front of him . The two Runners halt and Greiger shouts out , believing Crow to be Yusei . Crow states that he is not Yusei , but he knows who Greiger is and damns him for joining the Dark Signers . Greiger has not met Crow before , but Crow introduces himself and challenges Greiger to a Duel . Greiger questions as to whether Crow is a Signer . ( In the dub , Grieger knows that Crow is not a Signer . ) Regardless of being a Signer or not , Crow recites his reason for challenging Greiger . Although Greiger is unsure what Crow means , Crow accuses the Dark Signers of taking away the children he took care of . The fate of the innocent children , reminds Greiger of his brother and sister . He regarded Crow ' s threat to make him pay as ironic , as he believes he shall make Goodwin pay for killing his siblings . He tells Crow that the fate bestowed on his siblings , caused him to seek vengeance by any means necessary , even through bloodshed . Seeing no use in arguing , Crow suggests they get on with the Duel , refusing to let Greiger face Yusei , until he has beaten him . Greiger refuses to Duel a non - Signer like Crow . However Crow attaches a timer to the Blackbird , which he says will kill both players when the timer reaches 0 . ( In the dub , he says it ' s an E . M . P . charge that will wreck Grieger ' s Runner . ) He threatens to chase Greiger unless he accepts . Seeing Crow to be mentally prepared , he accepts the Duel in order to lure Yusei . Greiger informs Crow that once the Shadow Duel starts , there will be no turning back and one of them will lose their soul . Crow refuses to receive concern from people who stole away the only place who could go home to . Before they begin , Crow lays down one more rule ; both players turn off auto - pilot for the Duel . Remembering Yusei ' s encounter with Ccapac Apu , Crow infers that the only way to counter the attacks from an Earthbound Immortal is to use your own riding techniques . The Turbo Duel . " Speed World " is activated , setting - up the Turbo Duel . The Killer Whale geoglyph appears and etches out the circuit . Yusei , Trudge and the twins see the geoglyph appear in the sky . Trudge notes that it shouldn ' t be there as there is no Dark Signer with a Killer Whale birthmark , sparking Yusei to worry that a new Dark Signer may have emerged . Since Luna and Yusei ' s birthmarks aren ' t reacting , they deduce that the Dark Signer ' s opponent isn ' t a Signer . Greiger sets the rule to decide who goes first ; whoever is first around the first corner . Crow chucks the timer onto the ground , explaining that it was only an alarm clock and suggests they start the race , once the timer hits 0 . The timer drops to 0 and the alarm goes off . Both Runners speed off and Crow makes plans on how to get past the corner first , when his Runner has less horsepower . Crow speeds - up , prompting Greiger to go even faster . Greiger gets to the corner first , but drifts to the outmost point , due to the size of his Duel Runner , allowing Crow to easily take the inside lane and move in front of Greiger . Crow goes first and Summons " Blackwing - Shura the Blue Flame " in Attack Position ( ATK : 1800 ) . He Set s 1 card in his Spell & Trap Card Zone and ends his turn . Greiger draws " Diving Exploder " and Summons " Trap Reactor ・ Y FI " in Attack Position ( ATK : 800 ) . He discards " Diving Exploder " switching the ATK and DEF of " Shura the Blue Flame " and " Trap Reactor ・ Y FI " , setting them at 1200 and 1800 respectively . Greiger then attacks " Shura " with " Y FI " . " Y FI " shoots out " Shura " , dropping Crow ' s Life Points to 3400 . The impact from the attack , knocks Crow off course , causing his Duel Runner to sail off course and fall off the side of the highroad . Yusei and company continue to make their way to the Killer Whale geoglyph . Yusei fears for whoever is facing the Dark Signer and hopes they don ' t make any hasty decisions . ( In the dub , he thinks " Whoever ' s duelling that Dark Signer has no idea the amount of danger they ' re getting into . ' Cause if they come deck - to - deck with an Earthbound Immortal , this might be their last duel ever ! " ) Featured Duel : Crow Hogan vs . Greiger . Turn 1 : Crow Crow ' s hand contains " Blackwing - Backlash " , " Fake Feather " , " Blackwing - Shura the Blue Flame " , " Blackwing - Vayu the Emblem of Honor " and " Blackwing - Fane the Steel Chain " . Crow draws " Speed Spell - Angel Baton " . Crow Normal Summon s " Blackwing - Shura the Blue Flame " ( 1800 / 1200 ) in Attack Position and Set s a card . Turn 2 : Greiger Greiger draws " Diving Exploder " . During the Standby Phase , the effect of " Speed World " activates ( Crow ' s SPC : 0 → 1 ; Greiger ' s SPC : 0 → 1 ) . Greiger Normal Summons " Trap Reactor ・ Y FI " ( 800 / 1800 ) in Attack Position . He then send s " Diving Exploder " from his hand to the Graveyard in order to activate its effect , switching the ATK and DEF of all face - up monsters on the field ( " Shura the Blue Flame " : 1800 → 1200 / 1200 → 1800 ; " Trap Reactor ・ Y FI " : 800 → 1800 / 1800 → 800 ) . " Trap Reactor ・ Y FI " then attack s and destroy s " Shura the Blue Flame " ( Crow 4000 → 3400 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .