| Clever ImpersonatorThrough the Omenpaths Bonus Sheet · 8 | Through the Omenpaths Bonus Sheet | 8 | Mythic Rare | — |
| Clever LumimancerStrixhaven: School of Mages · 10 | Strixhaven: School of Mages | 10 | Uncommon | €0.16 |
| Clever Lumimancer // Clever LumimancerStrixhaven Art Series · 2 | Strixhaven Art Series | 2 | — | — |
| Clever Lumimancer // Clever LumimancerStrixhaven Art Series · 2s | Strixhaven Art Series | 2s | — | — |
| ClickslitherDuel Decks: Elves vs. Goblins · 34 | Duel Decks: Elves vs. Goblins | 34 | Rare | €0.17 |
| ClickslitherDuel Decks Anthology: Elves vs. Goblins · 34 | Duel Decks Anthology: Elves vs. Goblins | 34 | Rare | $0.26 |
| ClickslitherLegions · 90 | Legions | 90 | Rare | $0.29 |
| ClickslitherVintage Masters · 156 | Vintage Masters | 156 | Rare | — |
| CliffgateCommander Legends: Battle for Baldur's Gate · 350 | Commander Legends: Battle for Baldur's Gate | 350 | Common | $0.37 |
| CliffgateThe List Tokens · CLB-350 | The List Tokens | CLB-350 | Common | $0.51 |
| Cliffhaven KitesailFoundations Jumpstart · 748 | Foundations Jumpstart | 748 | Common | €0.19 |
| Cliffhaven KitesailZendikar Rising · 243 | Zendikar Rising | 243 | Common | €0.09 |
| Cliffhaven Sell-SwordZendikar Rising · 8 | Zendikar Rising | 8 | Common | €0.04 |
| Cliffhaven Sell-Sword // Cliffhaven Sell-SwordZendikar Rising Art Series · 38 | Zendikar Rising Art Series | 38 | — | — |
| Cliffhaven VampireOath of the Gatewatch · 153 | Oath of the Gatewatch | 153 | Uncommon | $0.52 |
| Cliffrunner BehemothConflux · 79 | Conflux | 79 | Rare | €0.23 |
| Cliffside LookoutBattle for Zendikar · 20 | Battle for Zendikar | 20 | Common | €0.02 |
| Cliffside LookoutThe List Tokens · BFZ-20 | The List Tokens | BFZ-20 | Common | $0.08 |
| Cliffside MarketPlanechase Planes · 5 | Planechase Planes | 5 | Common | €3.46 |
| Cliffside MarketPlanechase Anthology Planes · 18 | Planechase Anthology Planes | 18 | Common | €0.57 |
| Cliffside RescuerCommander 2019 · 1 | Commander 2019 | 1 | Uncommon | €0.25 |
| Cliff ThreaderZendikar · 7 | Zendikar | 7 | Common | $0.08 |
| Clifftop LookoutBloomburrow · 168 | Bloomburrow | 168 | Uncommon | €0.13 |
| Clifftop LookoutFoundations Commander · 195 | Foundations Commander | 195 | Uncommon | €0.17 |
| Clifftop RetreatBloomburrow Commander · 300 | Bloomburrow Commander | 300 | Rare | $0.27 |
| Clifftop RetreatDominaria Remastered · 241 | Dominaria Remastered | 241 | Rare | $0.43 |
| Clifftop RetreatDominaria · 239 | Dominaria | 239 | Rare | $0.47 |
| Clifftop RetreatDominaria Remastered · 393 | Dominaria Remastered | 393 | Rare | $0.73 |
| Clifftop RetreatEdge of Eternities Commander · 155 | Edge of Eternities Commander | 155 | Rare | $0.26 |
| Clifftop RetreatFinal Fantasy Commander · 381 | Final Fantasy Commander | 381 | Rare | $0.27 |
| Clifftop RetreatInnistrad · 238 | Innistrad | 238 | Rare | $0.74 |
| Clifftop RetreatThe Lost Caverns of Ixalan Commander · 324 | The Lost Caverns of Ixalan Commander | 324 | Rare | $0.29 |
| Clifftop RetreatTales of Middle-earth Commander · 300 | Tales of Middle-earth Commander | 300 | Rare | $0.42 |
| Clifftop RetreatMarvel Super Heroes Commander · 231 | Marvel Super Heroes Commander | 231 | Rare | $0.28 |
| Clifftop RetreatOutlaws of Thunder Junction Commander · 278 | Outlaws of Thunder Junction Commander | 278 | Rare | €0.56 |
| Clifftop RetreatDominaria Promos · 239p | Dominaria Promos | 239p | Rare | €1.67 |
| Clifftop RetreatDominaria Promos · 239s | Dominaria Promos | 239s | Rare | €1.99 |
| Clifftop RetreatFallout · 258 | Fallout | 258 | Rare | $0.34 |
| Clifftop RetreatFallout · 491 | Fallout | 491 | Rare | €3.51 |
| Clifftop RetreatFallout · 786 | Fallout | 786 | Rare | €2.38 |
| Clifftop RetreatFallout · 1019 | Fallout | 1019 | Rare | $8.62 |
| Clifftop RetreatSecrets of Strixhaven Commander · 366 | Secrets of Strixhaven Commander | 366 | Rare | $0.30 |
| Clifftop RetreatTarkir: Dragonstorm Commander · 351 | Tarkir: Dragonstorm Commander | 351 | Rare | $0.27 |
| Clifftop RetreatThe List Tokens · DOM-239 | The List Tokens | DOM-239 | Rare | €0.69 |
| Clifftop RetreatAlchemy: Edge of Eternities · 31 | Alchemy: Edge of Eternities | 31 | Rare | — |
| Clifftop RetreatReality Fracture Commander · 67 | Reality Fracture Commander | 67 | Rare | €0.24 |
| Clifftop RetreatMarvel Super Heroes Commander · 466 | Marvel Super Heroes Commander | 466 | Rare | €0.80 |
| Clifftop Retreat // Clifftop RetreatThe Lost Caverns of Ixalan Art Series · 81 | The Lost Caverns of Ixalan Art Series | 81 | — | — |
| Clinging AnemonesGatecrash · 31 | Gatecrash | 31 | Common | €0.08 |
| Clinging DarknessRavnica: City of Guilds · 80 | Ravnica: City of Guilds | 80 | Common | $0.09 |