| Calamity BearerKaldheim · 125 | Kaldheim | 125 | Rare | €0.27 |
| Calamity BearerKaldheim · 356 | Kaldheim | 356 | Rare | $0.41 |
| Calamity BearerKaldheim Promos · 125p | Kaldheim Promos | 125p | Rare | $0.25 |
| Calamity BearerKaldheim Promos · 125s | Kaldheim Promos | 125s | Rare | $0.31 |
| Calamity BearerKaldheim Promos · 125★ | Kaldheim Promos | 125★ | Rare | $0.19 |
| Calamity BearerMagic Online Promos · 88312 | Magic Online Promos | 88312 | Rare | — |
| Calamity, Galloping InfernoOutlaws of Thunder Junction · 116 | Outlaws of Thunder Junction | 116 | Rare | €0.21 |
| Calamity, Galloping InfernoOutlaws of Thunder Junction · 330 | Outlaws of Thunder Junction | 330 | Rare | €0.58 |
| Calamity, Galloping InfernoYear of the Horse 2026 Tokens · 4 | Year of the Horse 2026 Tokens | 4 | Rare | €35.28 |
| Calamity, Galloping InfernoOutlaws of Thunder Junction Promos · 116p | Outlaws of Thunder Junction Promos | 116p | Rare | €0.34 |
| Calamity, Galloping InfernoOutlaws of Thunder Junction Promos · 116s | Outlaws of Thunder Junction Promos | 116s | Rare | €0.48 |
| Calamity of CindersBloomburrow Commander · 23 | Bloomburrow Commander | 23 | Rare | $0.24 |
| Calamity of CindersBloomburrow Commander · 57 | Bloomburrow Commander | 57 | Rare | €0.45 |
| Calamity of the TitansCommander Masters · 713 | Commander Masters | 713 | Rare | €3.38 |
| Calamity of the TitansCommander Masters · 745 | Commander Masters | 745 | Rare | €3.62 |
| CalcidermDCI Promos · 5 | DCI Promos | 5 | Rare | €0.23 |
| Caldaia GuardianNew Capenna Commander · 56 | New Capenna Commander | 56 | Rare | €0.09 |
| Caldaia GuardianNew Capenna Commander · 156 | New Capenna Commander | 156 | Rare | $0.27 |
| Caldaia GuardianNew Capenna Commander Promos · 56p | New Capenna Commander Promos | 56p | Rare | €0.92 |
| Caldera HellionShards of Alara · 95 | Shards of Alara | 95 | Rare | €0.22 |
| Caldera LakeTempest · 316 | Tempest | 316 | Rare | €1.22 |
| Caldera PyremawTarkir: Dragonstorm Commander · 33 | Tarkir: Dragonstorm Commander | 33 | Rare | $0.68 |
| Caldera PyremawTarkir: Dragonstorm Commander · 73 | Tarkir: Dragonstorm Commander | 73 | Rare | €2.00 |
| Calibrated BlastModern Horizons 2 · 118 | Modern Horizons 2 | 118 | Rare | €0.14 |
| Calibrated BlastModern Horizons 2 · 405 | Modern Horizons 2 | 405 | Rare | €0.13 |
| Calibrated BlastModern Horizons 2 · 456 | Modern Horizons 2 | 456 | Rare | €0.25 |
| Calibrated BlastModern Horizons 2 Promos · 118s | Modern Horizons 2 Promos | 118s | Rare | $0.33 |
| Calibrated BlastMagic Online Promos · 91289 | Magic Online Promos | 91289 | Rare | — |
| Calim, Djinn EmperorAlchemy Horizons: Baldur's Gate · 33 | Alchemy Horizons: Baldur's Gate | 33 | Rare | — |
| Caller of the ClawCommander 2015 · 177 | Commander 2015 | 177 | Rare | €8.92 |
| Caller of the ClawLegions · 121 | Legions | 121 | Rare | €8.60 |
| Caller of the ClawSalvat 2005 · B37 | Salvat 2005 | B37 | Rare | €1.92 |
| Caller of the HuntMercadian Masques · 233 | Mercadian Masques | 233 | Rare | $1.12 |
| Caller of the UntamedConspiracy: Take the Crown · 62 | Conspiracy: Take the Crown | 62 | Rare | $0.22 |
| Call for AidTales of Middle-earth Commander · 30 | Tales of Middle-earth Commander | 30 | Rare | $0.29 |
| Call for AidTales of Middle-earth Commander · 113 | Tales of Middle-earth Commander | 113 | Rare | €0.35 |
| Call for AidTales of Middle-earth Commander · 432 | Tales of Middle-earth Commander | 432 | Rare | €1.18 |
| Call Forth the TempestTales of Middle-earth Commander · 509 | Tales of Middle-earth Commander | 509 | Rare | $17.48 |
| Call Forth the TempestTales of Middle-earth Commander · 553 | Tales of Middle-earth Commander | 553 | Rare | €34.69 |
| Call for UnityAether Revolt · 9 | Aether Revolt | 9 | Rare | €0.14 |
| Call for UnityTales of Middle-earth Commander · 163 | Tales of Middle-earth Commander | 163 | Rare | €0.19 |
| Call for UnityAether Revolt Promos · 9s | Aether Revolt Promos | 9s | Rare | €0.50 |
| Call from the GraveMystery Booster 2 Tokens · 541 | Mystery Booster 2 Tokens | 541 | Rare | $0.20 |
| Callidus AssassinWarhammer 40,000 Commander · 109 | Warhammer 40,000 Commander | 109 | Rare | $4.43 |
| Callidus AssassinWarhammer 40,000 Commander · 109★ | Warhammer 40,000 Commander | 109★ | Rare | $13.16 |
| Call of the ConclaveFriday Night Magic 2013 · 4 | Friday Night Magic 2013 | 4 | Rare | €0.32 |
| Call of the HerdDuel Decks: Mind vs. Might · 44 | Duel Decks: Mind vs. Might | 44 | Rare | €0.26 |
| Call of the HerdModern Masters 2017 · 121 | Modern Masters 2017 | 121 | Rare | €0.29 |
| Call of the HerdOdyssey · 231 | Odyssey | 231 | Rare | €17.22 |
| Call of the HerdGrand Prix Promos · 2008 | Grand Prix Promos | 2008 | Rare | €6.07 |