Yu - Gi - Oh ! GX - Episode 039 " The Dark Scorpions " , known as " Great Detective Thunder VS The Black Scorpion Grave - Robber Squad " in the Japanese version , is the thirty - ninth episode of the " Yu - Gi - Oh ! GX " anime . It first aired in Japan on June 29 , 2005 and in the US on February 26 , 2006 . Summary . In a dark cave , a group of people remark that their boss in en route , and they vow to complete their task by adhering to the " Laws of Stealing " , as they are the Dark Scorpion s . As three of the seven Spirit Keys have already been lost to the Shadow Riders , Professor Banner calls for a professional police inspector . Upon finding out the everyone is keeping their keys on their person , he decides they should hide the keys in separate places , well away from each other . Chazz Princeton opts to hide his under the sink in his room , and the detective questions who the man outside is . Jaden Yuki responds that it ' s the janitor , Mr . Gorg . Jaden hides his in his deck drawer , and they find a boy named Chick eavesdropping outside . Syrus Truesdale walks by and remarks that Chick has a tendency to mix up which room is his . Alexis Rhodes hides her key in her jewelery box , and one of the school ' s nurses , Meanae arrives , and the detective immediately suspects her as well . Banner places the final key in a safe located in the teacher ' s conference room , and they are interrupted by a security guard named Cliff , who the detective also suspects . That night , each of the keys is stolen . Despite this , any attempts to use the to open the Spirit Gate fail , and the thieves are unable to understand why . Upon discovering this , the group gathers in Chazz ' s room to discuss the situation , and the detective arrives as well , all of his " suspects " from earlier in tow . Chazz eventually deduces that the detective ' s " suspects " from earlier were all involved , as he left one of his Ojama cards in each hiding spot , and the spirits of them reported the culprits to him later . The rest of the card spirits contained in the cards in his room confirmed the culprit of the theft from his room . The detective reveals himself as Don Zaloog , while his " suspects " are the remainder of his criminal Dark Scorpion group . Zaloog states he had taken the job to steal the Spirit Keys years earlier , and had the rest of his group arrive at Duel Academy undercover until the time came . Chazz reveals that the reason the keys aren ' t working is that they must be won in a Duel . Chazz volunteers to Duel him , and Zaloog accepts . The Duel begins , with Zaloog playing " Golem Sentry " in Defense Position . Chazz activates " Fiend ' s Sanctuary " and Tribute s the " Metal Fiend Token " Summoned through it to Summon " Armed Dragon LV5 " . It destroys " Golem Sentry " and evolves into " Armed Dragon LV7 " during his End Phase . Zaloog combats this by Summoning himself ( when he does so , he literally moves onto the field ) and using " Mustering of the Dark Scorpions " to Summon the other four Dark Scorpions . Using " Dark Scorpion Combination " , Zaloog deals 2000 damage to Chazz , inflicts a variety of negative effects to him and even returns " Dark Scorpion Combination " to his hand . Chazz strikes back by using " Level Modulation " to Special Summon " Armed Dragon LV7 " . He uses its effect to discard " Despair from the Dark " , destroying all of Zaloog ' s monsters . However , Zaloog saves them with " Retreat of the Dark Scorpions " , returning them to his hand . Regardless , this leaves him open to a direct attack . Zaloog Summons himself again and attempts to use a second copy of " Mustering of the Dark Scorpions " to Summon the rest . Chazz activates his face - down " Ojama Trio " , Summoning three " Ojama Tokens " to Zaloog ' s field . Thus , Zaloog can only Summon one more monster with " Mustering of the Dark Scorpions " . He chooses " Dark Scorpion - Meanae the Thorn " and activates " Dark Scorpion - Tragedy of Love , Tributing her to destroy " Armed Dragon LV7 " . He is then able to attack directly , reducing Chazz to 600 Life Points and forcing Chazz to discard the final card in his hand - " Ojamagic " . However , this is beneficial , as it allows him to add the three Ojamas to his hand . He fuses them using " Polymerization " to Fusion Summon " Ojama King " and then plays " Ojamuscle " to destroy the " Ojama Tokens " and increase " Ojama King ' s " attack to 3000 . This is enough to defeat Zaloog , and he all of the Scorpions vanish upon defeat , leaving his Shadow Charm eyepatch behind , which was what granted the five Duel Spirits the ability to physically manifest in the human world . Chazz however is concerned about something . Chazz is then shown putting earplugs in his ears before going back to bed . It then shows the Dark Scorpion Duel Monster Spirits partying with the other Duel Monster Spirits in Chazz ' s room . Featured Duel : Chazz Princeton vs . Don Zaloog . Turn 1 : Don Zaloog Don Zaloog draws " Dark Scorpion Combination " . He then Normal Summon s " Golem Sentry " ( 800 / 1800 ) in Defense Position and Set s a card . Turn 2 : Chazz Chazz draws " Fiend ' s Sanctuary " and subsequently activates it to Special Summon a " Metal Fiend Token " ( 0 / 0 ) in Attack Position . He then Tribute s the " Metal Fiend Token " in order to Tribute Summon " Armed Dragon LV5 " ( 2400 / 1700 ) in Attack Position . " Armed Dragon LV5 " attacks and destroy s " Golem Sentry " . Chazz then Sets two cards . On Chazz ' s End Phase , Chazz sends " Armed Dragon LV5 " to the Graveyard in order to Special Summon " Armed Dragon LV7 " ( 2800 / 1000 ) in Attack Position as " Armed Dragon LV5 " destroyed a monster in battle this turn . Turn 3 : Don Zaloog Don Zaloog draws " Pot of Greed " and subsequently activates it to draw two cards ( one of which is " Don Zaloog " ) . Don Zaloog then Normal Summons " Don Zaloog " ( 1400 / 1500 ) in Attack Position . Since Don Zaloog controls himself on the field , he activates " Mustering of the Dark Scorpions " to Special Summon " Dark Scorpion - Chick the Yellow " ( 1000 / 1000 ) , " Dark Scorpion - Meanae the Thorn " ( 1000 / 1800 ) , " Dark Scorpion - Gorg the Strong " ( 1800 / 1500 ) and " Cliff the Trap Remover " ( 1200 / 1000 ) from his hand all in Attack Position . Since Don Zaloog controls all five Dark Scorpions , he activates his face - down " Dark Scorpion Combination " to allow all of his monsters to attack directly once each this turn at the cost of allowing each monster to inflict only 400 Battle Damage . All five of Don Zaloog ' s monsters attack directly ( Chazz 4000 → 3600 → 3200 → 2800 → 2400 → 2000 ) . Since all five Dark Scorpion monsters inflicted Battle Damage , their effects activate . The effect of " Gorg " returns " Armed Dragon LV7 " to the top of Chazz ' s Deck . The effect of " Chick " returns one of Chazz ' s Set cards to his hand . The effect of " Cliff " sends " Armed Dragon LV7 " and " Level Up ! " from the top of Chazz ' s Deck to the Graveyard . The effect of " Don Zaloog " forces Chazz to discard a random card from his hand ; Chazz discards " Masked Dragon " . The effect of " Meanae " allows Don Zaloog to return " Dark Scorpion Combination " from his Graveyard to his hand . Chazz then activates his face - down " Level Modulation " to Special Summon " Armed Dragon LV7 " ( 2800 / 1000 ) from his Graveyard in Attack Position while ignoring the Summoning conditions , but in exchange Don Zaloog is allowed to draw two cards . Don Zaloog Sets two cards . Turn 4 : Chazz Chazz draws . He then activates the effect of " Armed Dragon LV7 " to send " Despair from the Dark " ( 2800 / 3000 ) from his hand to the Graveyard and destroy all face - up monsters on Don Zaloog ' s field that have equal or less ATK than the ATK of the sent monster , but Don Zaloog activates his face - down " Retreat of the Dark Scorpions " to return " Don Zaloog " , " Dark Scorpion - Chick the Yellow " , " Dark Scorpion - Meanae the Thorn " , " Dark Scorpion - Gorg the Strong " and " Cliff the Trap Remover " to his hand . " Armed Dragon LV7 " attacks directly ( Don Zaloog 4000 → 1200 ) . Chazz then Sets a card . Turn 5 : Don Zaloog Don Zaloog draws . He then Normal Summons " Don Zaloog " ( 1400 / 1500 ) in Attack Position . Don then activates " Mustering of the Dark Scorpions " to Special Summon the other four Dark Scorpions from his hand , but Chazz activates his face - down " Ojama Trio " to Special Summon three " Ojama Tokens " ( 0 / 1000 ) to Don ' s side of the field in Defense Position . These Tokens can ' t be Tributed for a Tribute Summon and if any are destroyed the controller of those tokens will take 300 damage for each token destroyed . With three Monster Card Zones occupied , Don Zaloog uses the effect of " Mustering of the Dark Scorpions " to Special Summon " Dark Scorpion - Meanae the Thorn " ( 1000 / 1000 ) in Attack Position . Don then activates " Dark Scorpion - Tragedy of Love " to Tribute " Meanae " and destroy all monsters Chazz controls . " Don Zaloog " attacks directly ( Chazz 2000 → 600 ) . The effect of Don Zaloog activates , forcing Chazz to discard " Ojamagic " . Since " Ojamagic " was sent from Chazz ' s hand to the Graveyard , its effect activates , allowing Chazz to add " Ojama Green " , " Ojama Black " , and " Yellow " from his Deck to his hand . Turn 6 : Chazz Chazz draws " Pot of Greed " and subsequently activates it to draw two cards ( one of which is " Polymerization " ) . Chazz then activates " Polymerization " to fuse " Ojama Yellow " , " Ojama Black " , and " Ojama Green " together and Fusion Summon " Ojama King " ( 0 / 3000 ) in Attack Position . Chazz then activates " Ojamuscle " to destroy all " Ojama " monsters besides " Ojama King " and make the ATK of " Ojama King " the number of " Ojama " monsters destroyed times 1000 . Three were destroyed ( " Ojama King " : 0 → 3000 / 3000 ) . The effects of the " Ojama Tokens " activate ( Don Zaloog 1200 → 900 → 600 → 300 ) . " Ojama King " attacks and destroys " Don Zaloog " ( Don Zaloog 300 → 0 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .