| Kenrith, the Returned KingThrone of Eldraine · 303 | Throne of Eldraine | 303 | Mythic Rare | €1.17 |
| Kenrith, the Returned KingFinal Fantasy: Through the Ages · 23 | Final Fantasy: Through the Ages | 23 | Rare | €3.08 |
| Kenrith, the Returned KingTales of Middle-earth Commander · 515 | Tales of Middle-earth Commander | 515 | Mythic Rare | $80.32 |
| Kenrith, the Returned KingMystery Booster 2 Tokens · 13 | Mystery Booster 2 Tokens | 13 | Mythic Rare | $0.85 |
| Kenrith, the Returned KingMultiverse Legends · 4 | Multiverse Legends | 4 | Mythic Rare | €1.48 |
| Kenrith, the Returned KingMultiverse Legends · 69 | Multiverse Legends | 69 | Mythic Rare | €7.92 |
| Kenrith, the Returned KingMultiverse Legends · 134 | Multiverse Legends | 134 | Mythic Rare | €36.21 |
| Kenrith, the Returned KingMultiverse Legends · 134z | Multiverse Legends | 134z | Mythic Rare | €602.38 |
| Kenrith, the Returned KingThe List Tokens · ELD-303 | The List Tokens | ELD-303 | Mythic Rare | €1.53 |
| Kentaro, the Smiling CatBetrayers of Kamigawa · 13 | Betrayers of Kamigawa | 13 | Rare | €1.03 |
| Keral Keep DisciplesCore Set 2021 · 334 | Core Set 2021 | 334 | Uncommon | $0.33 |
| Keranos, God of StormsJourney into Nyx · 151 | Journey into Nyx | 151 | Mythic Rare | €4.51 |
| Keranos, God of StormsSecret Lair Drop Tokens · 79 | Secret Lair Drop Tokens | 79 | Mythic Rare | $15.20 |
| Keranos, God of StormsPioneer Masters · 311 | Pioneer Masters | 311 | Mythic Rare | — |
| Kerblam! WarehouseDoctor Who · 586 | Doctor Who | 586 | Common | €0.22 |
| Keruga, the MacrosageIkoria: Lair of Behemoths · 225 | Ikoria: Lair of Behemoths | 225 | Rare | €0.16 |
| Keruga, the MacrosageIkoria: Lair of Behemoths · 354 | Ikoria: Lair of Behemoths | 354 | Rare | $0.44 |
| Keruga, the MacrosageMystery Booster 2 Tokens · 84 | Mystery Booster 2 Tokens | 84 | Rare | $0.18 |
| Keruga, the MacrosageMultiverse Legends · 48 | Multiverse Legends | 48 | Rare | €0.21 |
| Keruga, the MacrosageMultiverse Legends · 113 | Multiverse Legends | 113 | Rare | $0.61 |
| Keruga, the MacrosageMultiverse Legends · 178 | Multiverse Legends | 178 | Rare | €4.69 |
| Keruga, the MacrosageMultiverse Legends · 178z | Multiverse Legends | 178z | Rare | €0.18 |
| Keruga, the MacrosageIkoria: Lair of Behemoths Promos · 225p | Ikoria: Lair of Behemoths Promos | 225p | Rare | €0.32 |
| Keruga, the MacrosageIkoria: Lair of Behemoths Promos · 225s | Ikoria: Lair of Behemoths Promos | 225s | Rare | €0.36 |
| Keruga, the MacrosageMagic Online Promos · 80847 | Magic Online Promos | 80847 | Rare | — |
| Keskit, the Flesh SculptorCommander Legends · 131 | Commander Legends | 131 | Uncommon | €0.14 |
| Keskit, the Flesh SculptorCommander Legends · 565 | Commander Legends | 565 | Uncommon | €0.24 |
| Keskit, the Flesh SculptorMarch of the Machine Commander · 254 | March of the Machine Commander | 254 | Uncommon | €0.13 |
| Keskit, the Flesh SculptorMagic Online Promos · 86328 | Magic Online Promos | 86328 | Uncommon | — |
| Kess, Dissident MageCommander 2017 · 39 | Commander 2017 | 39 | Mythic Rare | €2.53 |
| Kess, Dissident MageModern Horizons · 206 | Modern Horizons | 206 | Mythic Rare | €2.61 |
| Kess, Dissident MageNew Capenna Commander · 344 | New Capenna Commander | 344 | Mythic Rare | €1.15 |
| Kess, Dissident MageSecret Lair Drop Tokens · 1167 | Secret Lair Drop Tokens | 1167 | Mythic Rare | €6.61 |
| Kess, Dissident MageTreasure Chest · 65763 | Treasure Chest | 65763 | Mythic Rare | — |
| Kess, Dissident MageThe List Tokens · NCC-344 | The List Tokens | NCC-344 | Mythic Rare | $0.44 |
| KessigPlanechase 2012 Planes · 21 | Planechase 2012 Planes | 21 | Common | €1.14 |
| KessigPlanechase Anthology Planes · 42 | Planechase Anthology Planes | 42 | Common | €0.22 |
| Kessig CagebreakersCommander 2015 · 187 | Commander 2015 | 187 | Rare | $0.21 |
| Kessig CagebreakersCommander Anthology · 122 | Commander Anthology | 122 | Rare | €0.19 |
| Kessig CagebreakersInnistrad · 189 | Innistrad | 189 | Rare | €0.33 |
| Kessig CagebreakersJumpstart 2022 · 681 | Jumpstart 2022 | 681 | Rare | €0.25 |
| Kessig CagebreakersMidnight Hunt Commander · 142 | Midnight Hunt Commander | 142 | Rare | €0.18 |
| Kessig Dire SwineShadows over Innistrad · 214 | Shadows over Innistrad | 214 | Common | €0.09 |
| Kessig FlamebreatherInnistrad: Double Feature · 431 | Innistrad: Double Feature | 431 | Common | $5.90 |
| Kessig FlamebreatherInnistrad: Crimson Vow · 164 | Innistrad: Crimson Vow | 164 | Common | $2.32 |
| Kessig FlamebreatherThe List Tokens · VOW-164 | The List Tokens | VOW-164 | Common | €1.89 |
| Kessig Forgemaster // Flameheart WerewolfShadows over Innistrad · 169 | Shadows over Innistrad | 169 | Uncommon | €0.13 |
| Kessig MalcontentsAvacyn Restored · 142 | Avacyn Restored | 142 | Uncommon | €0.12 |
| Kessig Naturalist // Lord of the UlvenwaldInnistrad: Double Feature · 231 | Innistrad: Double Feature | 231 | Uncommon | €0.25 |
| Kessig Naturalist // Lord of the UlvenwaldInnistrad: Midnight Hunt · 231 | Innistrad: Midnight Hunt | 231 | Uncommon | €0.18 |