| Cartorhyn the Hidden Gem of the SeafrontPower of the Elements · 036 | Power of the Elements | 036 | Common | $0.04 |
| Cash BackAbyss Rising · 078 | Abyss Rising | 078 | Short Print | $0.08 |
| CassimolarPhoton Hypernova · 093 | Photon Hypernova | 093 | Common | €0.06 |
| Castel, the Skyblaster MusketeerDuelist Alliance · 054 | Duelist Alliance | 054 | Super Rare | €0.03 |
| Castle GatePhantom Darkness · 091 | Phantom Darkness | 091 | Rare | $0.15 |
| Castle LinkCode of the Duelist · 065 | Code of the Duelist | 065 | Ultra Rare | €0.13 |
| Castle of Dark IllusionsMetal Raiders · 073 | Metal Raiders | 073 | Common | €0.05 |
| Castle of Dragon SoulsSaga of Blue-Eyes White Dragon Structure Deck · 033 | Saga of Blue-Eyes White Dragon Structure Deck | 033 | Common | €0.09 |
| Castle WallsStarter Deck: Kaiba · 049 | Starter Deck: Kaiba | 049 | Common | €0.02 |
| Cataclysmic Circumpolar ChilblainiaEternity Code · 033 | Eternity Code | 033 | Common | €0.06 |
| Cataclysmic Crusted CalcifidaIgnition Assault · 025 | Ignition Assault | 025 | Common | €0.09 |
| Cataclysmic Cryonic ColdoRising Rampage · 030 | Rising Rampage | 030 | Common | €0.04 |
| Cataclysmic Scorching SunburnerSavage Strike · 028 | Savage Strike | 028 | Common | €0.06 |
| Catalyst FieldInvasion: Vengeance · 059 | Invasion: Vengeance | 059 | Ultra Rare | $1.07 |
| Catapult TurtleMetal Raiders · 075 | Metal Raiders | 075 | Super Rare | €0.10 |
| Catapult WarriorYu-Gi-Oh! 5D's Volume 2 promotional card · 001 | Yu-Gi-Oh! 5D's Volume 2 promotional card | 001 | Ultra Rare | $0.11 |
| Catapult ZoneReturn of the Duelist · 064 | Return of the Duelist | 064 | Common | €0.19 |
| Catche Eve L2Savage Strike · 001 | Savage Strike | 001 | Common | €0.02 |
| Catch of the DaySpeed Duel: Attack from the Deep · 03 | Speed Duel: Attack from the Deep | 03 | Super Rare | $0.39 |
| Catnipped KittyFlaming Eternity · 013 | Flaming Eternity | 013 | Common | $0.20 |
| Catoblepas and the Witch of FateStardust Overdrive · 014 | Stardust Overdrive | 014 | Rare | €0.16 |
| Catoblepas, Familiar of the Evil EyeThe Infinity Chasers · 029 | The Infinity Chasers | 029 | Super Rare | €0.08 |
| Cat's Ear TribeMagician's Force · 081 | Magician's Force | 081 | Rare | €0.06 |
| Cat SharkPremium Gold: Return of the Bling · 016 | Premium Gold: Return of the Bling | 016 | Gold Secret Rare | $0.22 |
| Cattle CallShining Victories · 081 | Shining Victories | 081 | Super Rare | €0.13 |
| CattycornBattles of Legend: Monstrous Revenge · 042 | Battles of Legend: Monstrous Revenge | 042 | Ultra Rare | €0.05 |
| Cauldron of the Old ManChaos Impact · 064 | Chaos Impact | 064 | Common | €0.21 |
| Cave DragonLegacy of Darkness · 040 | Legacy of Darkness | 040 | Short Print | $0.88 |
| C-Crush WyvernStructure Deck: Seto Kaiba · 003 | Structure Deck: Seto Kaiba | 003 | Super Rare | €0.09 |
| CeasefirePharaoh's Servant · 030 | Pharaoh's Servant | 030 | Ultra Rare | €0.12 |
| CelestiaThe New Challengers · 065 | The New Challengers | 065 | Common | €0.04 |
| Celestial Apparatus TeseaDarkwing Blast · 028 | Darkwing Blast | 028 | Common | €0.07 |
| Celestial Double Star ShamanDuelist Saga · 018 | Duelist Saga | 018 | Ultra Rare | €1.18 |
| Celestia, Lightsworn AngelLight of Destruction · 024 | Light of Destruction | 024 | Ultra Rare | €0.24 |
| Celestial Knightlord ParshathDuel Overload · 002 | Duel Overload | 002 | Ultra Rare | €0.50 |
| Celestial ObservatoryCybernetic Horizon · 064 | Cybernetic Horizon | 064 | Secret Rare | €0.08 |
| Celestial Sword - EatosDragons of Legend · 011 | Dragons of Legend | 011 | Super Rare | €0.09 |
| Celestial TransformationEnemy of Justice · 044 | Enemy of Justice | 044 | Common | $0.13 |
| Celestial Wolf Lord, Blue SiriusShadow Specters · 090 | Shadow Specters | 090 | Ultra Rare | $0.47 |
| Cell Explosion VirusGladiator's Assault · 076 | Gladiator's Assault | 076 | Rare | $0.40 |
| Celtic GuardianLegend of Blue Eyes White Dragon · 007 | Legend of Blue Eyes White Dragon | 007 | Super Rare | €0.02 |
| Celtic Guard of Noble ArmsYu-Gi-Oh! The Dark Side of Dimensions Movie Pack · 048 | Yu-Gi-Oh! The Dark Side of Dimensions Movie Pack | 048 | Ultra Rare | €0.22 |
| Celtic MysticChaos Origins · 003 | Chaos Origins | 003 | Super Rare | €0.22 |
| Cemetary BombSoul of the Duelist · 059 | Soul of the Duelist | 059 | Common | €0.07 |
| Centaur MinaBrothers of Legend · 020 | Brothers of Legend | 020 | Secret Rare | €0.21 |
| CenterfrogCybernetic Horizon · 025 | Cybernetic Horizon | 025 | Short Print | $0.07 |
| Centrifugal FieldFlaming Eternity · 045 | Flaming Eternity | 045 | Common | €0.05 |
| Centur-Ion AtriiThe Infinite Forbidden · 021 | The Infinite Forbidden | 021 | Super Rare | €0.11 |
| Centur-Ion AuxilaLegacy of Destruction · 042 | Legacy of Destruction | 042 | Secret Rare | $0.58 |
| Centur-Ion BondsValiant Smashers · 022 | Valiant Smashers | 022 | Super Rare | €0.12 |