| Kaito's PursuitKamigawa: Neon Dynasty · 103 | Kamigawa: Neon Dynasty | 103 | Common | €0.12 |
| Kalain, Reclusive PainterAdventures in the Forgotten Realms · 225 | Adventures in the Forgotten Realms | 225 | Uncommon | $0.30 |
| Kalain, Reclusive PainterAdventures in the Forgotten Realms · 342 | Adventures in the Forgotten Realms | 342 | Uncommon | €0.23 |
| Kalain, Reclusive PainterAlchemy Horizons: Baldur's Gate · 237 | Alchemy Horizons: Baldur's Gate | 237 | Uncommon | — |
| Kalakscion, Hunger TyrantAetherdrift · 93 | Aetherdrift | 93 | Uncommon | €0.13 |
| Kalamax, the StormsireCommander 2020 · 9 | Commander 2020 | 9 | Mythic Rare | €0.52 |
| Kalamax, the StormsireCommander 2020 Oversized · 9 | Commander 2020 Oversized | 9 | Mythic Rare | €0.10 |
| Kalamax, the StormsireSpecial Guests · 13 | Special Guests | 13 | Mythic Rare | €2.02 |
| Kalamax, the StormsireThe List Tokens · C20-9 | The List Tokens | C20-9 | Mythic Rare | €0.47 |
| Kalamax, the StormsireSecret Lair Drop Tokens · 2252 | Secret Lair Drop Tokens | 2252 | Mythic Rare | — |
| Kalastria HealerBattle for Zendikar · 114 | Battle for Zendikar | 114 | Common | €0.10 |
| Kalastria HighbornDCI Promos · 39 | DCI Promos | 39 | Rare | €18.41 |
| Kalastria HighbornFoundations · 607 | Foundations | 607 | Rare | €0.24 |
| Kalastria HighbornFoundations · 753 | Foundations | 753 | Rare | €0.25 |
| Kalastria HighbornThe List Tokens · WWK-59 | The List Tokens | WWK-59 | Rare | €3.99 |
| Kalastria HighbornWorldwake · 59 | Worldwake | 59 | Rare | $0.74 |
| Kalastria HighbornMagic Online Promos · 43552 | Magic Online Promos | 43552 | Rare | — |
| Kalastria NightwatchBattle for Zendikar · 115 | Battle for Zendikar | 115 | Common | €0.04 |
| Kalastria NightwatchJumpstart · 245 | Jumpstart | 245 | Common | €0.08 |
| Kalastria NightwatchJumpstart 2022 · 429 | Jumpstart 2022 | 429 | Common | €0.08 |
| Kalastria NightwatchThe List Tokens · BFZ-115 | The List Tokens | BFZ-115 | Common | €0.08 |
| Kaldra CompleatCommander Masters · 958 | Commander Masters | 958 | Mythic Rare | €4.50 |
| Kaldra CompleatModern Horizons 2 · 227 | Modern Horizons 2 | 227 | Mythic Rare | €5.55 |
| Kaldra CompleatModern Horizons 2 · 379 | Modern Horizons 2 | 379 | Mythic Rare | €5.28 |
| Kaldra CompleatModern Horizons 2 Promos · 227s | Modern Horizons 2 Promos | 227s | Mythic Rare | €12.88 |
| Kaldra CompleatSpotlight Series · 2 | Spotlight Series | 2 | Mythic Rare | €73.13 |
| Kaldra CompleatThe List Tokens · MH2-227 | The List Tokens | MH2-227 | Mythic Rare | €5.65 |
| Kaldra CompleatArena Anthology 3 · 21 | Arena Anthology 3 | 21 | Mythic Rare | — |
| Kaldra Compleat // Kaldra CompleatModern Horizons 2 Art Series · 61 | Modern Horizons 2 Art Series | 61 | — | — |
| Kaldra Compleat // Kaldra CompleatModern Horizons 2 Art Series · 61s | Modern Horizons 2 Art Series | 61s | — | — |
| KaleidoscorchModern Horizons 2 · 133 | Modern Horizons 2 | 133 | Uncommon | €0.05 |
| KaleidostoneConflux · 137 | Conflux | 137 | Common | €0.16 |
| Kalemne, Disciple of IroasCommander 2015 · 45 | Commander 2015 | 45 | Mythic Rare | €3.62 |
| Kalemne, Disciple of IroasCommander Anthology Volume II · 7 | Commander Anthology Volume II | 7 | Mythic Rare | €9.29 |
| Kalemne, Disciple of IroasCommander 2015 Oversized · 45 | Commander 2015 Oversized | 45 | Mythic Rare | €0.25 |
| Kalemne, Disciple of IroasLegendary Cube Prize Pack · 107 | Legendary Cube Prize Pack | 107 | Rare | — |
| Kalemne's CaptainCommander 2015 · 5 | Commander 2015 | 5 | Rare | €0.15 |
| Kalemne's CaptainCommander 2020 · 92 | Commander 2020 | 92 | Rare | €0.02 |
| Kalemne's CaptainCommander Anthology Volume II · 31 | Commander Anthology Volume II | 31 | Rare | $0.15 |
| Kalemne's CaptainLegendary Cube Prize Pack · 7 | Legendary Cube Prize Pack | 7 | Rare | — |
| Kalitas, Bloodchief of GhetZendikar · 99 | Zendikar | 99 | Mythic Rare | €3.58 |
| Kalitas, Traitor of GhetOath of the Gatewatch · 86 | Oath of the Gatewatch | 86 | Mythic Rare | €3.67 |
| Kalitas, Traitor of GhetOath of the Gatewatch Promos · 86s | Oath of the Gatewatch Promos | 86s | Mythic Rare | €9.04 |
| Kalitas, Traitor of GhetThe List Tokens · OGW-86 | The List Tokens | OGW-86 | Mythic Rare | €4.31 |
| Kalitas, Traitor of GhetSecret Lair Drop Tokens · 1687 | Secret Lair Drop Tokens | 1687 | Mythic Rare | €8.80 |
| Kalitas, Traitor of GhetExplorer Anthology 1 · 5 | Explorer Anthology 1 | 5 | Mythic Rare | — |
| Kalitas, Traitor of GhetFoundations Commander · 108 | Foundations Commander | 108 | Mythic Rare | $0.68 |
| Kallist RhokaUnknown Event · RZ02a | Unknown Event | RZ02a | Rare | $29.99 |
| Kalonian BehemothMagic 2010 · 188 | Magic 2010 | 188 | Rare | €0.30 |
| Kalonian BehemothSalvat 2011 · 146 | Salvat 2011 | 146 | Rare | €0.54 |