| Koma and Toski, CompleatedUnknown Event · RZ08b | Unknown Event | RZ08b | Rare | — |
| Koma, Cosmos SerpentKaldheim · 221 | Kaldheim | 221 | Mythic Rare | €5.16 |
| Koma, Cosmos SerpentKaldheim · 326 | Kaldheim | 326 | Mythic Rare | $6.48 |
| Koma, Cosmos SerpentMurders at Karlov Manor Commander · 213 | Murders at Karlov Manor Commander | 213 | Mythic Rare | €3.69 |
| Koma, Cosmos SerpentKaldheim Promos · 221p | Kaldheim Promos | 221p | Mythic Rare | €4.09 |
| Koma, Cosmos SerpentKaldheim Promos · 221s | Kaldheim Promos | 221s | Mythic Rare | €7.94 |
| Koma, Cosmos SerpentAvatar: The Last Airbender Eternal · 51 | Avatar: The Last Airbender Eternal | 51 | Mythic Rare | €4.73 |
| Koma, Cosmos SerpentSecret Lair Drop Tokens · 1765 | Secret Lair Drop Tokens | 1765 | Mythic Rare | €13.96 |
| Koma, Cosmos SerpentMagic Online Promos · 88356 | Magic Online Promos | 88356 | Mythic Rare | — |
| Koma, Cosmos Serpent // Koma, Cosmos SerpentKaldheim Art Series · 60 | Kaldheim Art Series | 60 | — | — |
| Koma, Cosmos Serpent // Koma, Cosmos SerpentKaldheim Art Series · 80 | Kaldheim Art Series | 80 | — | — |
| Komainu Battle ArmorNeon Dynasty Commander · 21 | Neon Dynasty Commander | 21 | Rare | €2.01 |
| Komainu Battle ArmorNeon Dynasty Commander · 60 | Neon Dynasty Commander | 60 | Rare | €3.06 |
| Komainu Battle ArmorThe List Tokens · NEC-21 | The List Tokens | NEC-21 | Rare | $3.80 |
| Komainu Battle ArmorMagic Online Promos · 97995 | Magic Online Promos | 97995 | Rare | — |
| Koma's CoilFoundations Tokens · 11 | Foundations Tokens | 11 | — | — |
| Koma's CoilKaldheim Tokens · 7 | Kaldheim Tokens | 7 | — | $7.60 |
| Koma's CoilMurders at Karlov Manor Commander Tokens · 7 | Murders at Karlov Manor Commander Tokens | 7 | — | — |
| Koma's FaithfulKaldheim · 102 | Kaldheim | 102 | Common | €0.10 |
| Koma's FaithfulFoundations Jumpstart · 457 | Foundations Jumpstart | 457 | Common | $0.19 |
| Koma, World-EaterFoundations · 121 | Foundations | 121 | Rare | $0.52 |
| Koma, World-EaterFoundations · 347 | Foundations | 347 | Rare | $3.48 |
| Koma, World-EaterFoundations · 408 | Foundations | 408 | Rare | €34.28 |
| Koma, World-EaterFoundations · 480 | Foundations | 480 | Rare | $1.25 |
| Koma, World-EaterFoundations Promos · 121p | Foundations Promos | 121p | Rare | €0.59 |
| Koma, World-EaterFoundations Promos · 121s | Foundations Promos | 121s | Rare | €0.75 |
| Komodo RhinoAvatar: The Last Airbender Eternal · 241 | Avatar: The Last Airbender Eternal | 241 | Common | €0.08 |
| Komodo RhinoAvatar: The Last Airbender Eternal · 283 | Avatar: The Last Airbender Eternal | 283 | Common | €0.10 |
| Kona, Rescue BeastieDuskmourn: House of Horror · 187 | Duskmourn: House of Horror | 187 | Rare | €0.71 |
| Kona, Rescue BeastieDuskmourn: House of Horror · 299 | Duskmourn: House of Horror | 299 | Rare | €0.91 |
| Kona, Rescue BeastieDuskmourn: House of Horror · 358 | Duskmourn: House of Horror | 358 | Rare | €1.25 |
| Kona, Rescue BeastieDuskmourn: House of Horror Promos · 187p | Duskmourn: House of Horror Promos | 187p | Rare | €0.62 |
| Kona, Rescue BeastieDuskmourn: House of Horror Promos · 187s | Duskmourn: House of Horror Promos | 187s | Rare | €2.12 |
| Kona, Rescue BeastieSecret Lair Drop Tokens · 2785 | Secret Lair Drop Tokens | 2785 | Rare | €4.00 |
| Konda, Lord of EiganjoChampions of Kamigawa · 30 | Champions of Kamigawa | 30 | Rare | €2.23 |
| Konda, Lord of EiganjoThe List Tokens · CHK-30 | The List Tokens | CHK-30 | Rare | $0.57 |
| Konda's BannerChampions of Kamigawa · 259 | Champions of Kamigawa | 259 | Rare | €4.64 |
| Konda's BannerSecret Lair Drop Tokens · 2772 | Secret Lair Drop Tokens | 2772 | Rare | $3.61 |
| Konda's HatamotoChampions of Kamigawa · 31 | Champions of Kamigawa | 31 | Uncommon | €0.13 |
| Kongming's ContraptionsPortal Three Kingdoms · 10 | Portal Three Kingdoms | 10 | Rare | €19.72 |
| Kongming, "Sleeping Dragon"Masters 25 · 20 | Masters 25 | 20 | Uncommon | €0.09 |
| Kongming, "Sleeping Dragon"Commander 2013 · 16 | Commander 2013 | 16 | Rare | €0.17 |
| Kongming, "Sleeping Dragon"Portal Three Kingdoms · 9 | Portal Three Kingdoms | 9 | Rare | €12.96 |
| Kongming, "Sleeping Dragon"Masters Edition III · 16 | Masters Edition III | 16 | Rare | — |
| Kongming, "Sleeping Dragon"Magic Online Promos · 33442 | Magic Online Promos | 33442 | Rare | — |
| Kongming, "Sleeping Dragon"Vintage Masters · 33 | Vintage Masters | 33 | Rare | — |
| Konstrari AnnexReality Fracture · 183 | Reality Fracture | 183 | Common | €0.07 |
| Konstrari CharmReality Fracture · 138 | Reality Fracture | 138 | Uncommon | €0.14 |
| Konstrari CharmReality Fracture · 433 | Reality Fracture | 433 | Uncommon | €0.02 |
| Konstrari Improviser // Soul TetherReality Fracture · 139 | Reality Fracture | 139 | Common | €0.06 |