| Cyclical EvolutionFuture Sight · 125 | Future Sight | 125 | Uncommon | €0.12 |
| CyclingJumpstart 2022 Front Cards · 28 | Jumpstart 2022 Front Cards | 28 | — | — |
| CycloneArabian Nights · 45 | Arabian Nights | 45 | Uncommon | €11.86 |
| CycloneChronicles Foreign Black Border · 62 | Chronicles Foreign Black Border | 62 | Rare | €1.93 |
| CycloneChronicles · 62 | Chronicles | 62 | Rare | $0.38 |
| CycloneRinascimento · 116 | Rinascimento | 116 | Uncommon | €1.23 |
| CycloneMasters Edition IV · 148 | Masters Edition IV | 148 | Rare | — |
| Cyclone SireOath of the Gatewatch · 54 | Oath of the Gatewatch | 54 | Uncommon | €0.05 |
| Cyclone SummonerKaldheim · 52 | Kaldheim | 52 | Rare | €0.24 |
| Cyclone SummonerKaldheim · 343 | Kaldheim | 343 | Rare | $0.46 |
| Cyclone SummonerKaldheim Promos · 52p | Kaldheim Promos | 52p | Rare | $0.25 |
| Cyclone SummonerKaldheim Promos · 52s | Kaldheim Promos | 52s | Rare | $0.58 |
| Cyclone SummonerKaldheim Promos · 52★ | Kaldheim Promos | 52★ | Rare | $0.22 |
| Cyclone SummonerThe List Tokens · KHM-52 | The List Tokens | KHM-52 | Rare | $0.17 |
| Cyclone SummonerMagic Online Promos · 88246 | Magic Online Promos | 88246 | Rare | — |
| Cyclone Summoner // Cyclone SummonerKaldheim Art Series · 13 | Kaldheim Art Series | 13 | — | — |
| Cyclonic RiftDouble Masters · 47 | Double Masters | 47 | Rare | €26.10 |
| Cyclonic RiftDouble Masters · 339 | Double Masters | 339 | Rare | €34.14 |
| Cyclonic RiftCommander 2014 · 104 | Commander 2014 | 104 | Rare | €13.44 |
| Cyclonic RiftCommander Masters · 84 | Commander Masters | 84 | Rare | €25.43 |
| Cyclonic RiftCommander Masters · 485 | Commander Masters | 485 | Rare | $53.34 |
| Cyclonic RiftModern Masters 2017 · 35 | Modern Masters 2017 | 35 | Rare | €25.66 |
| Cyclonic RiftReturn to Ravnica · 35 | Return to Ravnica | 35 | Rare | €24.15 |
| Cyclonic RiftRavnica Remastered · 40 | Ravnica Remastered | 40 | Mythic Rare | €31.91 |
| Cyclonic RiftRavnica Remastered · 313 | Ravnica Remastered | 313 | Mythic Rare | €37.53 |
| Cyclonic RiftRavnica Remastered · 313z | Ravnica Remastered | 313z | Mythic Rare | €908.04 |
| Cyclonic RiftRavnica Remastered · 419 | Ravnica Remastered | 419 | Mythic Rare | €39.16 |
| Cyclonic RiftSecrets of Strixhaven Mystical Archive · 14 | Secrets of Strixhaven Mystical Archive | 14 | Mythic Rare | €27.08 |
| Cyclonic RiftSecrets of Strixhaven Mystical Archive · 79 | Secrets of Strixhaven Mystical Archive | 79 | Mythic Rare | €63.70 |
| Cyclonic RiftSecrets of Strixhaven Mystical Archive · 144 | Secrets of Strixhaven Mystical Archive | 144 | Mythic Rare | €306.48 |
| Cyclonic RiftSecret Lair Drop Tokens · 1869 | Secret Lair Drop Tokens | 1869 | Rare | €23.90 |
| Cyclonic RiftExplorer Anthology 3 · 1 | Explorer Anthology 3 | 1 | Rare | — |
| Cyclonic RiftMagic Online Promos · 82816 | Magic Online Promos | 82816 | Rare | — |
| Cyclonus, the Saboteur // Cyclonus, Cybertronian FighterTransformers · 9 | Transformers | 9 | Mythic Rare | €0.58 |
| Cyclonus, the Saboteur // Cyclonus, Cybertronian FighterTransformers · 23 | Transformers | 23 | Mythic Rare | €3.79 |
| Cyclopean GiantTime Spiral · 100 | Time Spiral | 100 | Common | €0.02 |
| Cyclopean MummyFourth Edition Foreign Black Border · 128 | Fourth Edition Foreign Black Border | 128 | Common | €0.16 |
| Cyclopean MummyFourth Edition · 128 | Fourth Edition | 128 | Common | €0.06 |
| Cyclopean MummyLegends · 93 | Legends | 93 | Common | $0.35 |
| Cyclopean MummyRenaissance · 54 | Renaissance | 54 | Common | €0.11 |
| Cyclopean MummyMasters Edition IV · 72 | Masters Edition IV | 72 | Common | — |
| Cyclopean SnareRavnica: City of Guilds · 259 | Ravnica: City of Guilds | 259 | Uncommon | $0.05 |
| Cyclopean TitanMystery Booster Playtest Cards 2019 · 40 | Mystery Booster Playtest Cards 2019 | 40 | Rare | €0.02 |
| Cyclopean TitanMystery Booster Playtest Cards 2021 · 40 | Mystery Booster Playtest Cards 2021 | 40 | Rare | €0.17 |
| Cyclopean TombUnlimited Edition · 241 | Unlimited Edition | 241 | Rare | €69.05 |
| Cyclopean Tomb30th Anniversary Edition · 236 | 30th Anniversary Edition | 236 | Rare | €9.35 |
| Cyclopean Tomb30th Anniversary Edition · 533 | 30th Anniversary Edition | 533 | Rare | €150.00 |
| Cyclopean TombCollectors' Edition · 241 | Collectors' Edition | 241 | Rare | $24.19 |
| Cyclopean TombIntl. Collectors' Edition · 241 | Intl. Collectors' Edition | 241 | Rare | €21.80 |
| Cyclopean TombLimited Edition Alpha · 240 | Limited Edition Alpha | 240 | Rare | $990.00 |