| Circle of the Land DruidAlchemy Horizons: Baldur's Gate · 203 | Alchemy Horizons: Baldur's Gate | 203 | Common | — |
| Circle of the Moon DruidAdventures in the Forgotten Realms · 177 | Adventures in the Forgotten Realms | 177 | Common | €0.07 |
| Circle of the Moon DruidAlchemy Horizons: Baldur's Gate · 204 | Alchemy Horizons: Baldur's Gate | 204 | Common | — |
| Circling VulturesWeatherlight · 64 | Weatherlight | 64 | Uncommon | €0.31 |
| Circu, Dimir LobotomistGRN Guild Kit · 9 | GRN Guild Kit | 9 | Rare | $0.41 |
| Circu, Dimir LobotomistRavnica: City of Guilds · 196 | Ravnica: City of Guilds | 196 | Rare | €0.52 |
| Circuit MenderBloomburrow Commander · 267 | Bloomburrow Commander | 267 | Uncommon | €0.08 |
| Circuit MenderJumpstart 2022 · 760 | Jumpstart 2022 | 760 | Uncommon | €0.18 |
| Circuit MenderKamigawa: Neon Dynasty · 242 | Kamigawa: Neon Dynasty | 242 | Uncommon | €0.21 |
| Circuit MenderThe List Tokens · NEO-242 | The List Tokens | NEO-242 | Uncommon | $0.18 |
| Circuitous RouteFoundations · 635 | Foundations | 635 | Uncommon | $0.17 |
| Circuitous RouteGuilds of Ravnica · 125 | Guilds of Ravnica | 125 | Uncommon | $0.38 |
| Circuitous RouteThe List Tokens · GRN-125 | The List Tokens | GRN-125 | Uncommon | $0.33 |
| Circuitous RouteZendikar Rising Commander · 62 | Zendikar Rising Commander | 62 | Uncommon | €0.33 |
| Circuits ActUnfinity · 103 | Unfinity | 103 | Common | €0.13 |
| Circuits ActUnfinity · 389 | Unfinity | 389 | Common | €3.21 |
| Circular LogicDominaria Remastered · 42 | Dominaria Remastered | 42 | Uncommon | €0.26 |
| Circular LogicFriday Night Magic 2006 · 8 | Friday Night Magic 2006 | 8 | Rare | €1.70 |
| Circular LogicThe List Tokens · UMA-47 | The List Tokens | UMA-47 | Uncommon | €0.19 |
| Circular LogicSecret Lair Drop Tokens · 1519 | Secret Lair Drop Tokens | 1519 | Rare | €3.62 |
| Circular LogicSecret Lair Drop Tokens · 1519★ | Secret Lair Drop Tokens | 1519★ | Rare | $4.59 |
| Circular LogicTorment · 33 | Torment | 33 | Uncommon | $3.49 |
| Circular LogicUltimate Masters · 47 | Ultimate Masters | 47 | Uncommon | €0.30 |
| Circular LogicWorld Championship Decks 2002 Tokens · cr33 | World Championship Decks 2002 Tokens | cr33 | Uncommon | $1.41 |
| Circular LogicWorld Championship Decks 2002 Tokens · shh33 | World Championship Decks 2002 Tokens | shh33 | Uncommon | €1.45 |
| Circular LogicWorld Championship Decks 2003 Tokens · dh33 | World Championship Decks 2003 Tokens | dh33 | Uncommon | €0.57 |
| Circular LogicWorld Championship Decks 2003 Tokens · dz33 | World Championship Decks 2003 Tokens | dz33 | Uncommon | $0.30 |
| Circular LogicWorld Championship Decks 2003 Tokens · dz33sb | World Championship Decks 2003 Tokens | dz33sb | Uncommon | $1.06 |
| Circular LogicVintage Masters · 60 | Vintage Masters | 60 | Common | — |
| Circular LogicMagic Online Promos · 36244 | Magic Online Promos | 36244 | Uncommon | — |
| Circus of the SunBlack Lotus Unknown Planechase · PLA026 | Black Lotus Unknown Planechase | PLA026 | Common | — |
| Círdan the ShipwrightTales of Middle-earth Commander · 50 | Tales of Middle-earth Commander | 50 | Rare | €0.32 |
| Círdan the ShipwrightTales of Middle-earth Commander · 133 | Tales of Middle-earth Commander | 133 | Rare | €1.18 |
| Círdan the ShipwrightTales of Middle-earth Commander · 453 | Tales of Middle-earth Commander | 453 | Rare | €1.79 |
| Cirith Ungol PatrolThe Lord of the Rings: Tales of Middle-earth · 80 | The Lord of the Rings: Tales of Middle-earth | 80 | Common | €0.08 |
| Cirith Ungol PatrolThe Lord of the Rings: Tales of Middle-earth · 531 | The Lord of the Rings: Tales of Middle-earth | 531 | Common | €0.25 |
| Citadel CastellanMagic Origins · 213 | Magic Origins | 213 | Uncommon | €0.06 |
| Citadel CastellanThe List Tokens · ORI-213 | The List Tokens | ORI-213 | Uncommon | $0.09 |
| Citadel GateCommander Legends: Battle for Baldur's Gate · 349 | Commander Legends: Battle for Baldur's Gate | 349 | Common | $1.13 |
| Citadel GateThe List Tokens · CLB-349 | The List Tokens | CLB-349 | Common | $1.61 |
| Citadel of PainProphecy · 86 | Prophecy | 86 | Uncommon | €1.70 |
| Citadel SiegeCommander 2016 · 62 | Commander 2016 | 62 | Rare | €0.20 |
| Citadel SiegeCommander 2021 · 85 | Commander 2021 | 85 | Rare | €0.19 |
| Citadel SiegeCommander Anthology Volume II · 21 | Commander Anthology Volume II | 21 | Rare | €0.29 |
| Citadel SiegeFate Reforged · 8 | Fate Reforged | 8 | Rare | $0.24 |
| Citadel SiegeFate Reforged · 8★ | Fate Reforged | 8★ | Rare | — |
| Citadel SiegeMidnight Hunt Commander · 81 | Midnight Hunt Commander | 81 | Rare | €0.05 |
| Citanul CentaursUrza's Saga · 243 | Urza's Saga | 243 | Rare | $0.61 |
| Citanul DruidAntiquities · 31 | Antiquities | 31 | Uncommon | €7.97 |
| Citanul DruidMasters Edition IV · 146 | Masters Edition IV | 146 | Common | — |