Molten Crimson Flare
Scarlight Red Dragon Archfiend
Chazz uses this card only once against Jaden, in Episode 2 of GX, to steal Elemental HERO Flame Wingman
Chthonian Polymer
Originally released as a sneak peek promo card, this card saw a good amount of hype due to how hard it countered Swordsoul and, later, the Adventurer engine.
Token Collector
Vennominaga, the Deity of Poisonous Snakes
Rise of the Snake Deity
This card does manipulate levels, but players remember it best for its spot removal effect back in 2012.
Inzektor Hornet
This Fusion monster is the only monster to flip the normal syntax of its fusion materials.
Lubellion, the Searing Dragon
Glider Strike
Elemental HERO Tempest
Return from the Different Dimension
This forgotten counterpart to Exodia made its first and only public appearance as the cover card of a GX-era structure deck
(this card was reprinted in 2010 in the World Championship pack)
Exxod, Master of the Guard
Springans Blast
Fallen of Albaz
This spell card is most commonly associated with Seto Kaiba, who used it to make it easier to summon Blue-Eyes.
Cost Down
A statue of this monster appears in Trade-in, which, coincidentally, appeared in the same structure deck as this card.
Felgrand Dragon
Double Blast Attack
Don Zaloog
Chazz is the last person to ever play this forbidden spell card, which he uses against his brother in Season 1.
Painful Choice
Most old-school degenerate FTK strategies, such as Reversal Quiz FTK, or Exodia, rely on this monster to continuously generate card advantage for them.
Royal Magical Library
Exosister Martha
Exosister Ellis
First released in Stardust Overdrive, this trap card was a powerful floodgate from 2015 Duelist Alliance format all the way through 2017 because of how hard it shut down xyz strategies, from tellarknight to Burning Abyss and even, to some degree, ABC.
Stygian Dirge
This was the first structure deck-exclusive monster to appear in the anime, first appearing in Yu-Gi-Oh GX.
Red-Eyes Darkness Dragon
Tentacle Surge
Number 4: Stealth Kragen
This is the only non-ojama monster Chazz ever fusion summons, in his duel against Jaden in Season 3.
Dark Blade the Dragon Knight
This monster is best known for its role as an extender in Gouki, due to its ability to protect Neo Space Connector from Ash Blossom.
Blue Mountain Butterspy
Super Quantal Mech Beast Grampulse
Super Quantum Blue Layer
This spell card saw play in master duel as part of the selftk strategy, as an easy way to pay a large amount of life points quickly.
Star Blast
This monster is best known for its combos with Rescue Cat during 5ds (and is probably the main reason why Rescue Rabbit cannot be summoned from the deck)
Summoner Monk
Fireball Attack
Winged Dragon, Guardian of the Fortress #1
Although Chazz doesn't actually summon this iconic DM monster, it was in his deck when he dueled against his brother and appeared when he summoned Chaos Necromancer.
Relinquished
In the anime, this commonly-found monster had power comparable to that of the Egyptian Gods, but no one had ever summoned it.
Zushin, the Sleeping Giant
Gladiator Beast Spartacus
Gladiator Beast Hoplomus
This is the only fusion monster that can manipulate its own level (until Cyberstorm Access)
Lyrilusc - Independent Nightingale
This was one of the first structure deck exclusive cards to get a gold rare reprint, alongside Caius the Shadow Monarch.
Dimensional Alchemist