Chazz's Deck goes through a large amount of changes in this season alone, as he rarely uses the same Deck for more than one Duel.
|Prep School Duelists||2||Win (mentioned)|
|Jaden Yuki||2||No result|
His initial Deck is a "Hell/Infernal" Deck, consisting of powerful Fiend and DARK monsters, including "Chthonian" monsters. This Deck isn't seen at length but appears to have several control elements to it, "Chthonian Polymer" and "Chthonian Soldier" turning an opponent's powerful monsters against them, and "Mefist the Infernal General" and "Helpoemer" discarding cards from the opponent's hand.
Chazz is given rare "VWXYZ" cards by Vellian Crowler that he uses against Jaden for the duration of one episode. Though the Deck itself is only used once, all of the cards in it are shown again when Chazz starts combining separate Deck concepts in Seasons 2 and 3.
|45 North Academy students||24||Win|
|4 North Academy students||24||Win|
After all of his "Chthonian" cards were destroyed while stranded, he enters North Academy with a Deck made up of cards he had found on the grounds around the school, focusing on a One Turn Kill strategy. He defeated all fifty students at the Academy and became its new top Duelist.
After becoming the top-ranked student at North Academy by defeating all fifty other students, including their top-ranked student Czar, Chazz is gifted with the "Armed Dragon" Deck by North Academy's Chancellor Foster to use against Jaden Yuki in the "School Duel", an annual match between a nominated member of the student bodies of North Academy and Duel Academy.
Chancellor Foster forgets to take the "Armed Dragon" Deck back after Chazz opts to remain at Duel Academy (in the dub this line is changed to him bemoaning the fact that he didn't get a kiss from Ms. Dorothy). Despite this, Chazz keeps the cards and the issue is never brought up again.
It is around this time in the original version that he debuts his nickname "Manjoume Thunder." The name is a pun in Japanese, but was considered untranslatable. The chant is simply changed to "Chazz it Up" in the dub.
While Dueling against his brother Slade Princeton with the fate of Duel Academy on the line, Chazz is held down by a stipulation stating that he may only use monsters with less than 500 ATK. He journeys to a well deep in the forest and retrieves a myriad variety of cards thrown there by other students over the years who believed the cards too weak to ever be used.
Chazz constructs a 0 ATK Deck and develops several strategies that ultimately result in his victory.
During his Duel against Don Zaloog, Chazz combines elements of his "Armed Dragon" Deck with "Ojama" monsters and debuts new support cards for both themes to create an "Ojama"/"Armed Dragon" Deck. He used the same ones against Amneal but lost
Chazz goes to Atticus Rhodes, the brother of Alexis Rhodes to get his help in winning Alexis' affections. Atticus lends Chazz "love cards" which is put in a Deck with his Ojama monsters to create a Love Deck. Despite his efforts, he is defeated.
Chazz gathered many cards from Reject Well to build a Deck for a Duel against his brother Slade. He used monsters with 0 ATK, while the remaining monster cards were kept in his safe. When the "Dark Scorpions" were defeated and returned to their card form, Chazz added them to the cards from the well for safety's sake.
- Aitsu x3
- Archfiend Marmot of Nefariousness
- Dark Plant
- Petit Angel
- Petit Dragon
- Serpent Marauder
- Skull Servant
Society of Light
Chazz's Deck remains consistent for most of this season, though he does use a vastly different Deck at one point.
Armed Dragon/Ojama/Machine Union
|Unknown duelist||54||Win (flashback cut in dub)|
|Reginald Van Howell III||54||Win|
|Jaden Yuki||60||No result (cut from the dub)|
|Various Obelisk Blue students||70||Win|
|Bob Banter||81 (mentioned)||Win (off-screen)|
|Ishiki Erishi, America Uchimura and Ra Yellow student||82||Win|
|Genex Tournament and Society of Light Duelists||102||Win (with Obelisk Blue students)|
In the Society of Light arc, Chazz uses a mixed Deck of '"Ojama"/"Armed Dragon"/"VWXYZ". During his time in the Society of Light, Chazz acquires the Beetron Union Monsters. He ceases using this Deck late in his service to the Society and begins to use it again after being freed from Sartorius' influence by Jaden Yuki. Some of the cards from his "Chthonian" Deck were featured in the opening theme and also discarded via card effects.
"Infernal White" and "White Veil" were given to Chazz by Sartorius and in his mind represented this servitude to the Society, so he ceased using them after his exodus from the group. He also begins calling himself "Manjoume White Thunder" in the Japanese version, signifying his devotion to Sartorius.
- Armed Dragon LV3
- Armed Dragon LV5
- Armed Dragon LV7
- Armed Dragon LV10
- Chthonian Soldier[Notes 13]
- Infernal Incinerator[Notes 13]
- Mecha Ojama King
- Ojamachine Yellow
- A Feather of the Phoenix
- Chthonian Alliance[Notes 14]
- Enchanting Fitting Room[Notes 14]
- Front Change
- Frontline Base
- Graceful Charity
- Hidden Wish[Notes 13]
- Infernal White
- Level Down!
- Level Modulation
- Love Letter[Notes 13]
- Magical Mallet
- Mecha Ojama King Transformation
- Mystical Space Typhoon[Notes 15]
- Ojama Delta Hurricane!!
- Ojama Ride
- Pot of Greed
- Quick Summon
- Shield Attack
- White Veil
|Genex Tournament Duelists||87(mentioned)||Win|
He defeats professional Duelist Gelgo during the Genex Tournament using this Deck. He later Duels Jaden Yuki, who uses Chazz's Ojama cards to break Sartorius' mind control. Using the card "Cemetery Change", Chazz reclaims his Ojama monsters and also removes his white coat (calling himself "Manjoume Black Thunder" in the Japanese version). Despite this, he loses the Duel.
|5 Duel Ghouls||122||Win|
|Duel Ghouls||122||Not shown|
|Tyranno Hassleberry, Bastion Misawa, Alexis Rhodes, and Jim Crocodile Cook||129||Draw (with Syrus Truesdale, Vellian Crowler, and Jean-Louis Bonaparte)|
In the Dimension World arc, Chazz's Deck morphs once again, as he ceases his use of the "Armed Dragons", though a few are shown in a few scenes and in the Japanese ending theme Sun, along with cards from his original "Chthonian" Deck. In these episodes, he uses an "Ojama"/Armed Dragon/Union Deck.
- Armed Dragon LV7[Notes 18]
- Armed Dragon LV10[Notes 19]
- Chaos Necromancer[Notes 18]
- Chthonian Soldier[Notes 18]
- Infernal Incinerator
- Reborn Zombie[Notes 18]
- Return Zombie
- Chthonian Alliance[Notes 18]
- Desperado Manager
- Different Dimension Hangar
- Dimensional Catapult
- Enchanting Fitting Room
- Frontline Base[Notes 18]
- Fusion Buster
- Graceful Charity
- Level Up![Notes 18]
- Magical Mallet[Notes 18]
- Ojama Delta Hurricane!![Notes 20]
- Ojama Delta Thunder!!
- Premature Burial
- Quick Rush
- The Dark Door[Notes 18]
- Thunder Crash[Notes 18]
- Tribute to the Doomed
|Various Duel Academy students||168||Not shown|
|10 Duel Academy students||171||Not shown|
|Pro League Duelist||173||Lose (vision)|
|Pro League Duelist||173||Not shown (vision)|
|Pro League Duelist||174||Not shown (vision)|
|Rare Hunter||174||Not shown (vision)|
|Pro League Duelist||174||No result (vision)|
|Pro League Duelist||178||Not shown (vision)|
In the Darkness arc, Chazz gets two episodes devoted to the final steps in the development of his character, during which he utilizes another combination "Ojama"/"Armed Dragon" Deck, debuting new Spell and Trap support for both themes.