Yu - Gi - Oh ! 5D ' s - Episode 125 " Soul Solution " known as " Battle of Souls ! Polar God Emperor Thor VS Scar - Red Nova Dragon " in the Japanese version , is the one - hundred - and - twenty - fifth episode of " Yu - Gi - Oh ! 5D ' s " . Summary . Dragan tunes all three of his monsters together , and his Rune Eye glows as Thor , Lord of the Aesir descends from the sky in a great beam of lightning . Yusei mutters that the monster has arrived , and Dragan claims that this outcome was determined ever since his Brisingamen trap was activated . He calls on his monster ' s strength , and with one swing of the hammer , " Red Dragon Archfiend " is wiped out . The MC is surprised at Jack ' s ace monster being defeated so quickly , and Dragan declares that he ' ll definitely get back the pride he ' d lost before . Jack shakes his head to clear it , and he wonders at the shock running through his body . But even in the face of a god , he knows he ' ll keep fighting and won ' t lose . He takes his turn , with Halldor and Brodor curious to see what he ' ll do . But all he does is build up defenses , which Dragan declares is useless before a god . He takes his own turn , using Thor ' s effect to take the effect of " Top Runner " again , and the extra ATK makes the 5D ' s crew amazed at such a card ' s strength . Then he activates a Trap that will let his divine monster destroy both of Jack ' s monsters and deal damage for each one . The bolt of power striking Thor also causes interference in the broadcasting equipment , which catches Yusei ' s attention . Thor launches its first attack , destroying " Barrier Resonator " with no resistance , and the impact causes Jack yell in pain and his D - Wheel to spin out . Shaking , he manages to stay upright , but Yusei is stunned to realize that the damage was real . The crew and the MC are amazed at such a thing , while the audience can ' t believe it . Even Halldor wonders at this development . With this duel between the Crimson Dragon and the Rune Eye bearers , perhaps the duel is receiving some of the god ' s power . Dragan is still attacking , and the second impact destroys the last monster , reduces Jack to 900 Life Points , and sends Jack spinning out wildly in a cloud of smoke . Everyone else calls out in fear , and they look on fervently , but Jack isn ' t coming out . Yusei manages to maintain his solid expression , but the MC voices their growing fears that he might have crashed . The very idea makes Dragan look back , and Lazar is terrified that Jack might have lost , which then makes him afraid that Jack will want revenge on him . Halldor comments that Jack couldn ' t handle such an opponent , but just then , the smoke clears , and Jack is solidly upright , but he is groaning and heavily beat up . The team calls to him , and Jack declares that if he were to crash at this point , he wouldn ' t be Jack Atlas . Lazar sighs in relief . In their lair , the three emperors are eagerly watching to see how Jack could possibly win . The 5D ' s crew calms down , and Broder and Halldor comment that Jack is one of a kind . Dragan affirms that it ' s a relief that Jack didn ' t crash because he wants Jack to be his opponent and face him in this duel . Jack declares he ' ll throw those words right back at him , and to show his strength , he activates a trap that revives both his Tuners and damages Dragan with their ATK . Dragan loses much of his lead , but Broder notes that Jack is still too low on life to be safe , and Halldor adds that Thor still has an effect that hasn ' t been used yet . Looking at the opponents , Dragan wonders if Jack ' s planning on calling a new Synchro monster , but even that won ' t be enough . Jack renews the fight , activating Speed World 2 and revealing his signature Speed Spell to deal more damage to Dragan , who mocks this as a backup strategy of someone who can ' t face Thor head - on . But Jack denies that , saying that his absolute power will break that target . He then revive his ace monster , though it is in Defense Mode and has a DEF of 0 . Dragan says a shield is useless here , but Jack never intended on building up a shield . Jack clenches his fist , and his whole body glows red . He calls upon the raging fighter within him , his Blazing Soul , and he calls out a Double Tuning , which bewilders all three members of Ragnarok . The tuners burst into flames , releasing rings of fire that envelop Red Dragon Archfiend . Jack chants the summon , the new card appears in his hand , and his ultimate monster , " Red Nova Dragon " , appears on the field in a fiery roar . It ' s the first time most of Jack ' s friends have ever seen such a strong monster , not to mention everyone else watching , and the dragon ' s effect makes it stronger yet . The crew realizes that this monster ' s attack can take Dragan ' s life down enough that the four Speed Counters on Jack ' s next turn will deal the finishing blow , no matter what monsters Dragan has . With all his monster ' s power , Jack calls the attack . Dragan replies that Jack still doesn ' t get it : his team ' s ace cards are ancient gods , and nothing can beat them . He activates a trap that , because he has a divine monster on his field , lets him reduce the dragon ' s ATK by 2000 and prevent Jack from using any Spell or Trap on it . Then he adds a continuous trap that will make his divine monster immune to Traps for two turns . He mocks Jack , saying that all his traps are cut off , and his teammates smile at the unequal ATK matchup , which will cause a counterattack strong enough to defeat Jack . But Jack declares he won ' t lose here - - he ' ll fight on with his friends . All of their signs glow as he activates the permanent trap , " Burning Rebirth " , which lets him release " Red Nova Dragon " to revive " Red Dragon Archfiend " , binding its life to the trap ' s . Because it was a cost and not an effect , Dragan ' s effect can ' t stop it , but the monster is still too weak . Jack then activates his trap ' s other effect , which lets him discard a Tuner and destroy the trap to revive the released monster . " Red Nova Dragon " reappears , even stronger than before . Dragan is stunned at such high ATK , Brodor is amazed that Jack thought of such a dodge , and Halldor realizes that that margin is now 1500 . As his teammates cheer him on , Jack orders the attack , and Thor is wiped out . Without a word , Jack points to the sky in his signature pose of victory . The crowd and his friends all cheer for him , and Lazar collapses with his life saved . Team Ragnarok grits at the outcome , and when Dragan says it ' s The King ' s abilities , Jack counters and says the bonds of his friends gave him this power . These words cause Dragan to close his eyes in thought . He admits defeat and states that the shadow in his heart is gone . Even so , the ones who will win this duel and stop Iliaster will be Team Ragnarok ! The stadium and city begin to rumble , and all three Rune Eyes glow . As lightning rains down , the ocean parts , and a familiar warrior rises from the water . Thor is revived , to the fearful surprise of Team 5D ' s . Dragan declares that the god won ' t die when the player does . This is the bond of Team Ragnarok , and " Thor " activates its last effect upon revival , dealing 800 damage to Jack . This take Jack down to 100 Life Points , and as Jack is struck by the lightning of " Thor " , even Yusei calls out to see him shuddering so close to defeat . Featured Duel : Jack Atlas vs . Dragan . Turn 4 : Dragan Dragan sets two cards . On Dragan ' s End Phase , the effect of " Thor , Lord of the Aesir " expires ( " Thor , Lord of the Aesir " : 4100 → 3500 / 2800 ) . Turn 5 : Jack Atlas Jack draws . During the Standby Phase , the effect of " Speed World 2 " activates ( Jack ' s SPC : 3 → 4 ; Dragan ' s SPC : 3 → 4 ) . Jack Normal Summons " Barrier Resonator " ( 1 / 300 / 800 ) in Defense Position and switches " Top Runner " ( 4 / 1100 / 800 ) to Defense Position . Jack then sets a card . Turn 6 : Dragan Dragan draws . During the Standby Phase , the effect of " Speed World 2 " activates ( Jack ' s SPC : 4 → 5 ; Dragan ' s SPC : 4 → 5 ) . Dragan ' s hand contains " Raging Sacred Curse " and " Swords of Revealing Light " . Dragan then activates the effect of " Thor , Lord of the Aesir " to negate the effects of " Top Runner " and grant " Thor " those effects ( " Thor " : 3500 → 4100 / 2800 ) . Dragan then activates his face - down " Nordic Relic Mjollnir " to allow " Thor , Lord of the Aesir " to attack twice this turn and allow " Thor " to inflict 1000 damage to Jack should it destroy a monster in battle . " Thor , Lord of the Aesir " attacks and destroys " Barrier Resonator " and " Top Runner " . The effect of " Nordic Relic Mjollnir " activates twice ( Jack 2900 → 1900 → 900 ) . Jack activates his face - down " Tuner ' s Reflect " to revive both " Barrier Resonator " ( 1 / 300 / 800 ) and " Top Runner " ( 4 / 1100 / 800 ) in Attack Position and inflict damage to Dragan equal to the combined ATK of the revived Tuner Monsters ( Dragan 3400 → 2000 ) . Dragan sets a card . On Dragan ' s End Phase , the effect of " Thor , Lord of the Aesir " expires ( " Thor , Lord of the Aesir " : 4100 → 3500 / 2800 ) . Turn 7 : Jack Atlas Jack draws " Speed Spell - End of the Storm " . During the Standby Phase , the effect of " Speed World 2 " activates ( Jack ' s SPC : 5 → 6 ; Dragan ' s SPC : 5 → 6 ) . Jack ' s hand contains " Trap Eater " and " Speed Spell - End of the Storm " . Jack activates the effect of " Speed World 2 " to remove four Speed Counter s ( Jack ' s SPC : 6 → 2 ) and inflict 800 damage to Dragan for each Speed Spell in his hand . Jack reveals " Speed Spell - The End of the Storm " ( Dragan 2000 → 1200 ) . Jack then activates his face - down " Descending Lost Star " to revive " Red Dragon Archfiend " in Defense Position with its effects negated , its DEF reduced to 0 and its Level reduced by one ( 8 → 7 / 3000 / 2000 → 0 ) . Jack then double tunes " Red Dragon Archfiend " with " Top Runner " and " Barrier Resonator " in order to Synchro Summon " Red Nova Dragon " ( 12 / 3500 / 3000 ) in Attack Position . Due to the effect of " Red Nova Dragon " , it gains 500 ATK for each Tuner monster in Jack ' s Graveyard . There are two ( " Red Nova Dragon " : 3500 → 4500 / 3000 ) . " Red Nova Dragon " attacks " Thor , Lord of the Aesir " , but Dragan activates his face - down " Raging Sacred Curse " to reduce the ATK and DEF of " Red Nova Dragon " by 2000 ( " Red Nova Dragon " 4500 → 2500 / 3000 → 1000 ) and make it immune to Jack ' s Spells and Traps . Dragan then activates his face - down " Solemn Authority " to prevent " Thor " from being affected by Jack ' s Trap Cards for two turns . Jack then activates his face - down " Burning Rebirth " to Tribute " Red Nova Dragon " and revive " Red Dragon Archfiend " ( 8 / 3000 / 2000 ) in Attack Position as well as equip it with " Burning Rebirth " . Jack then activates the second effect of " Burning Rebirth " to send " Trap Eater " from his hand to the Graveyard and send " Burning Rebirth " to the Graveyard in order to revive " Red Nova Dragon " ( 12 / 3500 → 5000 / 3000 ) in Attack Position . Since " Burning Rebirth " was removed from the field , " Red Dragon Archfiend " is destroyed . " Red Nova Dragon " attacks and destroys " Thor , Lord of the Aesir " ( Dragan 1200 → 0 ) . Due to the rulings of the WRGP , it immediately goes to Jack ' s End Phase . Dragan activates the final effect of " Thor , Lord of the Aesir " to revive itself ( 10 / 3500 / 2800 ) in Attack Position and inflict 800 damage to Jack ( Jack 900 → 100 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .