| Corpse BlockadeGatecrash · 60 | Gatecrash | 60 | Common | €0.08 |
| Corpse ChurnRavnica: Clue Edition · 107 | Ravnica: Clue Edition | 107 | Common | $0.10 |
| Corpse ChurnCommander Legends · 113 | Commander Legends | 113 | Common | €0.06 |
| Corpse ChurnIkoria: Lair of Behemoths · 81 | Ikoria: Lair of Behemoths | 81 | Common | €0.06 |
| Corpse ChurnJumpstart 2022 · 389 | Jumpstart 2022 | 389 | Common | $0.08 |
| Corpse ChurnOath of the Gatewatch · 83 | Oath of the Gatewatch | 83 | Common | $0.07 |
| Corpse CurScars of Mirrodin · 147 | Scars of Mirrodin | 147 | Common | $0.23 |
| Corpse HaulerJumpstart · 219 | Jumpstart | 219 | Common | €0.14 |
| Corpse HaulerMagic 2014 · 90 | Magic 2014 | 90 | Common | €0.07 |
| Corpse LungeInnistrad · 93 | Innistrad | 93 | Common | €0.04 |
| Corpulent CorpseTime Spiral · 98 | Time Spiral | 98 | Common | €0.03 |
| Corpulent CorpseTime Spiral Remastered · 104 | Time Spiral Remastered | 104 | Common | €0.02 |
| Corridor MonitorDouble Masters · 46 | Double Masters | 46 | Common | $0.10 |
| Corridor MonitorThrone of Eldraine · 41 | Throne of Eldraine | 41 | Common | €0.07 |
| Corrosive OozeDominaria · 158 | Dominaria | 158 | Common | $0.19 |
| CorruptSeventh Edition · 124 | Seventh Edition | 124 | Common | €0.17 |
| CorruptSeventh Edition · 124★ | Seventh Edition | 124★ | Common | $0.18 |
| CorruptThe List Tokens · USG-124 | The List Tokens | USG-124 | Common | $0.11 |
| CorruptUrza's Saga · 124 | Urza's Saga | 124 | Common | $0.22 |
| Corrupt Court OfficialStreets of New Capenna · 70 | Streets of New Capenna | 70 | Common | €0.07 |
| Corrupt Court OfficialAvatar: The Last Airbender · 92 | Avatar: The Last Airbender | 92 | Common | €0.09 |
| Corrupted ConvictionMarch of the Machine · 98 | March of the Machine | 98 | Common | $0.41 |
| Corrupted ConvictionOutlaws of Thunder Junction · 84 | Outlaws of Thunder Junction | 84 | Common | $0.35 |
| Corrupted ConvictionThe List Tokens · MOM-98 | The List Tokens | MOM-98 | Common | — |
| Corrupted ShapeshifterModern Horizons 3 · 56 | Modern Horizons 3 | 56 | Common | €0.07 |
| Corrupted ZendikonWorldwake · 55 | Worldwake | 55 | Common | €0.20 |
| Cosi's RavagerDuel Decks: Venser vs. Koth · 52 | Duel Decks: Venser vs. Koth | 52 | Common | €0.14 |
| Cosi's RavagerWorldwake · 77 | Worldwake | 77 | Common | €0.10 |
| Cosmic HungerMarch of the Machine · 182 | March of the Machine | 182 | Common | €0.12 |
| Cosmium BlastThe Lost Caverns of Ixalan · 7 | The Lost Caverns of Ixalan | 7 | Common | €0.04 |
| Cosmotronic WaveRavnica: Clue Edition · 129 | Ravnica: Clue Edition | 129 | Common | $0.17 |
| Cosmotronic WaveGuilds of Ravnica · 95 | Guilds of Ravnica | 95 | Common | €0.10 |
| Cosmotronic WaveThe List Tokens · GRN-95 | The List Tokens | GRN-95 | Common | €0.09 |
| Costly PlunderDouble Masters · 80 | Double Masters | 80 | Common | €0.20 |
| Costly PlunderThe List Tokens · XLN-96 | The List Tokens | XLN-96 | Common | €0.18 |
| Costly PlunderIxalan · 96 | Ixalan | 96 | Common | €0.12 |
| Cost of BrillianceSecrets of Strixhaven · 77 | Secrets of Strixhaven | 77 | Common | €0.10 |
| Costume ShopUnfinity · 206a | Unfinity | 206a | Common | $0.17 |
| Costume ShopUnfinity · 206b | Unfinity | 206b | Common | €0.10 |
| Costume ShopUnfinity · 206c | Unfinity | 206c | Common | $0.08 |
| Costume ShopUnfinity · 206d | Unfinity | 206d | Common | €0.11 |
| Costume ShopUnfinity · 206e | Unfinity | 206e | Common | $0.10 |
| Costume ShopUnfinity · 206f | Unfinity | 206f | Common | €0.15 |
| Counsel of the SoratamiTenth Edition · 76 | Tenth Edition | 76 | Common | €0.09 |
| Counsel of the SoratamiNinth Edition · 69 | Ninth Edition | 69 | Common | €0.06 |
| Counsel of the SoratamiNinth Edition · 69★ | Ninth Edition | 69★ | Common | $0.13 |
| Counsel of the SoratamiChampions of Kamigawa · 55 | Champions of Kamigawa | 55 | Common | €0.10 |
| CountermandJourney into Nyx · 33 | Journey into Nyx | 33 | Common | €0.06 |
| CounterspellClassic Sixth Edition · 61 | Classic Sixth Edition | 61 | Common | €1.30 |
| CounterspellFifth Edition · 77 | Fifth Edition | 77 | Common | €1.63 |