| Clemont's Quick WitSurging Sparks · 229/191 | Surging Sparks | 229/191 | Ultra Rare | $0.92 |
| Clemont's Quick WitSurging Sparks · 243/191 | Surging Sparks | 243/191 | Special Illustration Rare | $7.05 |
| ClivePaldean Fates · 078/091 | Paldean Fates | 078/091 | Uncommon | €0.02 |
| ClivePaldean Fates · 227/091 | Paldean Fates | 227/091 | Ultra Rare | €0.53 |
| ClivePaldean Fates · 236/091 | Paldean Fates | 236/091 | Special Illustration Rare | €17.19 |
| ClobbopusGenetic Apex · 162 | Genetic Apex | 162 | 1 Diamond | — |
| ClobbopusPaldean Fates · 051/091 | Paldean Fates | 051/091 | Common | €0.03 |
| ClobbopusSurging Sparks · 112/191 | Surging Sparks | 112/191 | Common | €0.03 |
| ClobbopusSurging Sparks · 207/191 | Surging Sparks | 207/191 | Illustration Rare | $5.34 |
| ClobbopusSword & Shield · 111/202 | Sword & Shield | 111/202 | Common | €0.06 |
| ClobbopusSword & Shield · 112/202 | Sword & Shield | 112/202 | Common | €0.04 |
| ClobbopusVivid Voltage · 100/185 | Vivid Voltage | 100/185 | Common | €0.04 |
| ClobbopusShining Fates Shiny Vault · SV072/SV122 | Shining Fates Shiny Vault | SV072/SV122 | Rare Shiny | €2.35 |
| ClobbopusChilling Reign · 091/198 | Chilling Reign | 091/198 | Common | €0.05 |
| ClobbopusFusion Strike · 152/264 | Fusion Strike | 152/264 | Common | €0.04 |
| CloysterGenetic Apex · 067 | Genetic Apex | 067 | 2 Diamond | — |
| CloysterCelestial Guardians · 43 | Celestial Guardians | 43 | 2 Diamond | — |
| CloysterCrimson Blaze · 93 | Crimson Blaze | 93 | 1 Star | — |
| Cloyster151 · 091/165 | 151 | 091/165 | Uncommon | €0.09 |
| CloysterSword & Shield · 041/202 | Sword & Shield | 041/202 | Rare | $0.20 |
| CloysterFusion Strike · 051/264 | Fusion Strike | 051/264 | Rare | €0.19 |
| CloysterGenerations · 20/83 | Generations | 20/83 | Uncommon | €0.17 |
| CloysterSun & Moon · 34/149 | Sun & Moon | 34/149 | Rare | $0.15 |
| CloysterXY · 32/146 | XY | 32/146 | Rare | $0.48 |
| CloysterBREAKpoint · 24/122 | BREAKpoint | 24/122 | Uncommon | €0.13 |
| CloysterFossil · 32/62 | Fossil | 32/62 | Uncommon | $1.34 |
| CloysterSecret Wonders · 47/132 | Secret Wonders | 47/132 | Uncommon | €0.41 |
| CloysterExpedition Base Set · 8/165 | Expedition Base Set | 8/165 | Rare Holo | €13.45 |
| CloysterExpedition Base Set · 42/165 | Expedition Base Set | 42/165 | Rare | €6.41 |
| CloysterFireRed & LeafGreen · 20/112 | FireRed & LeafGreen | 20/112 | Rare | $2.90 |
| Cloyster δDragon Frontiers · 14/101 | Dragon Frontiers | 14/101 | Rare | $1.43 |
| Coach TrainerUnified Minds · 192/236 | Unified Minds | 192/236 | Uncommon | €0.38 |
| Coach TrainerUnified Minds · 233/236 | Unified Minds | 233/236 | Rare Ultra | €9.50 |
| CoalossalAscended Heroes · 120/217 | Ascended Heroes | 120/217 | Rare | €0.06 |
| CoalossalMega Rising · 147 | Mega Rising | 147 | 3 Diamond | — |
| CoalossalTemporal Forces · 095/162 | Temporal Forces | 095/162 | Uncommon | €0.04 |
| CoalossalRebel Clash · 107/192 | Rebel Clash | 107/192 | Rare Holo | €0.24 |
| CoalossalDarkness Ablaze · 198/189 | Darkness Ablaze | 198/189 | Rare Secret | $4.84 |
| CoalossalShining Fates Shiny Vault · SV069/SV122 | Shining Fates Shiny Vault | SV069/SV122 | Rare Shiny | $1.80 |
| CoalossalBattle Styles · 080/163 | Battle Styles | 080/163 | Rare Holo | $0.25 |
| CoalossalSWSH Black Star Promos · SWSH024 | SWSH Black Star Promos | SWSH024 | Promo | $3.56 |
| CoalossalSWSH Black Star Promos · SWSH054 | SWSH Black Star Promos | SWSH054 | Promo | €0.66 |
| Coalossal VVivid Voltage · 098/185 | Vivid Voltage | 098/185 | Rare Holo V | $0.58 |
| Coalossal VVivid Voltage · 173/185 | Vivid Voltage | 173/185 | Rare Ultra | $2.67 |
| Coalossal VMAXVivid Voltage · 099/185 | Vivid Voltage | 099/185 | Rare Holo VMAX | €1.36 |
| Coalossal VMAXVivid Voltage · 189/185 | Vivid Voltage | 189/185 | Rare Rainbow | $5.93 |
| Coating Metal EnergyVivid Voltage · 163/185 | Vivid Voltage | 163/185 | Uncommon | €0.07 |
| CobalionMega Rising · 169 | Mega Rising | 169 | 3 Diamond | — |
| CobalionSilver Tempest · 126/195 | Silver Tempest | 126/195 | Rare | €0.10 |
| CobalionChilling Reign · 114/198 | Chilling Reign | 114/198 | Rare Holo | €0.14 |