| Cir, Malebranche of the Burning AbyssDuelist Alliance · 084 | Duelist Alliance | 084 | Rare | €0.07 |
| Citadel WhaleLegendary Duelists · 016 | Legendary Duelists | 016 | Ultra Rare | €0.07 |
| Clara & Rushka, the VentriloduoExtreme Force · 049 | Extreme Force | 049 | Ultra Rare | €0.30 |
| Clashing SoulsDuelist Saga · 038 | Duelist Saga | 038 | Ultra Rare | €0.07 |
| Clavkiys, the Magikey SkyblasterDawn of Majesty · 010 | Dawn of Majesty | 010 | Common | €0.06 |
| Claw ReacherStarter Deck: Yugi · 018 | Starter Deck: Yugi | 018 | Common | €0.02 |
| Clay ChargeDuelist Pack: Jaden Yuki · 030 | Duelist Pack: Jaden Yuki | 030 | Super Rare | €0.29 |
| Clear CubeMaze of the Master · 039 | Maze of the Master | 039 | New | €0.15 |
| Clear EffectorDuelist Saga · 035 | Duelist Saga | 035 | Ultra Rare | €0.14 |
| Clear KuribohYu-Gi-Oh! The Dark Side of Dimensions Movie Pack · 047 | Yu-Gi-Oh! The Dark Side of Dimensions Movie Pack | 047 | Ultra Rare | €0.20 |
| Clear New WorldBattle of Chaos · 062 | Battle of Chaos | 062 | Common | €0.02 |
| Clear PhantomMaze of the Master · 037 | Maze of the Master | 037 | Super Rare | $0.22 |
| Clear Rage GolemMaze of the Master · 038 | Maze of the Master | 038 | New | €0.07 |
| Clear Vice DragonStardust Overdrive · 098 | Stardust Overdrive | 098 | Secret Rare | €0.16 |
| Clear Vicious KnightMaze of the Master · 040 | Maze of the Master | 040 | Super Rare | $0.16 |
| Clear WallMaze of the Master · 041 | Maze of the Master | 041 | Super Rare | $0.16 |
| Clear Wing Fast DragonYu-Gi-Oh! ARC-V Volume 2 promotional card · 001 | Yu-Gi-Oh! ARC-V Volume 2 promotional card | 001 | Ultra Rare | €0.03 |
| Clear Wing Synchro DragonCrossed Souls · 046 | Crossed Souls | 046 | Ultimate Rare | €0.14 |
| Clear WorldStardust Overdrive · 099 | Stardust Overdrive | 099 | Secret Rare | €0.12 |
| CliantStructure Deck: Cyberse Link · 003 | Structure Deck: Cyberse Link | 003 | Common | €0.03 |
| Click & EchoDuelist Nexus · 030 | Duelist Nexus | 030 | Common | €0.07 |
| Cloak and DaggerStrike of Neos · 059 | Strike of Neos | 059 | Rare | €0.16 |
| Clock ArcLightning Overdrive · 030 | Lightning Overdrive | 030 | Common | €0.03 |
| Clock LizardSavage Strike · 047 | Savage Strike | 047 | Common | €0.07 |
| Clock ResonatorExtreme Victory · 007 | Extreme Victory | 007 | Common | €0.18 |
| Clock SpartoiSoul Fusion · 039 | Soul Fusion | 039 | Rare | €0.03 |
| Clock Tower PrisonEnemy of Justice · 048 | Enemy of Justice | 048 | Super Rare | €0.10 |
| Clockwork KnightSupreme Darkness · 050 | Supreme Darkness | 050 | Ultra Rare | $0.12 |
| Clockwork NightBattles of Legend: Crystal Revenge · 007 | Battles of Legend: Crystal Revenge | 007 | Secret Rare | €0.02 |
| Clock WyvernSoul Fusion · 001 | Soul Fusion | 001 | Rare | €0.03 |
| Clone TokenUnlisted Printings | Unlisted Printings | — | — | — |
| CloningLimited Edition 1 · 022 | Limited Edition 1 | 022 | Ultra Rare | €0.04 |
| Clorless, Chaos King of Dark WorldMaze of Millennia · 014 | Maze of Millennia | 014 | Super Rare | €0.98 |
| Closed ForestYu-Gi-Oh! 5D's Duel Transer promotional cards · 002 | Yu-Gi-Oh! 5D's Duel Transer promotional cards | 002 | Ultra Rare | €0.68 |
| CloudcastleDuelist Alliance · 098 | Duelist Alliance | 098 | Common | $0.05 |
| Cloudian - Acid CloudGladiator's Assault · 010 | Gladiator's Assault | 010 | Rare | €0.14 |
| Cloudian AerosolDark Neostorm · 058 | Dark Neostorm | 058 | Common | €0.09 |
| Cloudian - AltusGladiator's Assault · 012 | Gladiator's Assault | 012 | Rare | €0.18 |
| Cloudian - CirrostratusGladiator's Assault · 011 | Gladiator's Assault | 011 | Rare | €0.16 |
| Cloudian - Eye of the TyphoonGladiator's Assault · 005 | Gladiator's Assault | 005 | Super Rare | €0.11 |
| Cloudian - Ghost FogGladiator's Assault · 006 | Gladiator's Assault | 006 | Common | €0.10 |
| Cloudian - NimbusmanGladiator's Assault · 007 | Gladiator's Assault | 007 | Common | €0.09 |
| Cloudian - Poison CloudGladiator's Assault · 009 | Gladiator's Assault | 009 | Common | $0.18 |
| Cloudian - Sheep CloudGladiator's Assault · 008 | Gladiator's Assault | 008 | Super Rare | €0.13 |
| Cloudian - Smoke BallGladiator's Assault · 002 | Gladiator's Assault | 002 | Common | €0.05 |
| Cloudian SquallGladiator's Assault · 052 | Gladiator's Assault | 052 | Common | €0.12 |
| Cloudian - Storm DragonLight of Destruction · 040 | Light of Destruction | 040 | Common | $0.01 |
| Cloudian TokenUnlisted Printings | Unlisted Printings | — | — | — |
| Cloudian - TurbulenceGladiator's Assault · 013 | Gladiator's Assault | 013 | Common | €0.12 |
| Cloudy Skies of GreySpeed Duel GX: Duelists of Shadows · 16 | Speed Duel GX: Duelists of Shadows | 16 | Common | $0.04 |