| Keldon WarlordFourth Edition Foreign Black Border · 207 | Fourth Edition Foreign Black Border | 207 | Uncommon | €1.41 |
| Keldon WarlordFourth Edition · 207 | Fourth Edition | 207 | Uncommon | $0.27 |
| Keldon WarlordFifth Edition · 247 | Fifth Edition | 247 | Uncommon | $0.25 |
| Keldon WarlordCollectors' Edition · 161 | Collectors' Edition | 161 | Uncommon | €1.81 |
| Keldon WarlordIntl. Collectors' Edition · 161 | Intl. Collectors' Edition | 161 | Uncommon | €2.53 |
| Keldon WarlordForeign Black Border · 160 | Foreign Black Border | 160 | Uncommon | €0.55 |
| Keldon WarlordLimited Edition Alpha · 160 | Limited Edition Alpha | 160 | Uncommon | €42.79 |
| Keldon WarlordLimited Edition Beta · 161 | Limited Edition Beta | 161 | Uncommon | €23.09 |
| Keldon WarlordSummer Magic / Edgar · 160 | Summer Magic / Edgar | 160 | Uncommon | €15.50 |
| Keldon WarlordMasters Edition · 101 | Masters Edition | 101 | Uncommon | — |
| Keleth, Sunmane FamiliarCommander Legends · 28 | Commander Legends | 28 | Uncommon | €0.19 |
| Keleth, Sunmane FamiliarCommander Masters · 33 | Commander Masters | 33 | Uncommon | €0.13 |
| Keleth, Sunmane FamiliarCommander Legends · 550 | Commander Legends | 550 | Uncommon | €0.33 |
| Keleth, Sunmane FamiliarMagic Online Promos · 86234 | Magic Online Promos | 86234 | Uncommon | — |
| Keleth, Sunmane FamiliarThe List Tokens · CMM-33 | The List Tokens | CMM-33 | Uncommon | — |
| Kelpie GuideThe List Tokens · STX-45 | The List Tokens | STX-45 | Uncommon | €0.19 |
| Kelpie GuideStrixhaven: School of Mages · 45 | Strixhaven: School of Mages | 45 | Uncommon | €0.27 |
| Kemba, Kha RegentCommander Masters · 34 | Commander Masters | 34 | Uncommon | €0.09 |
| Kemba, Kha RegentCommander Masters · 671 | Commander Masters | 671 | Uncommon | €0.17 |
| Kemba's LegionMirrodin Besieged · 9 | Mirrodin Besieged | 9 | Uncommon | €0.07 |
| Kemba's LegionThe List Tokens · MBS-9 | The List Tokens | MBS-9 | Uncommon | €0.06 |
| Kemba's OutfitterAlchemy: Phyrexia · 2 | Alchemy: Phyrexia | 2 | Uncommon | — |
| Kemuri-OnnaSaviors of Kamigawa · 76 | Saviors of Kamigawa | 76 | Uncommon | €0.09 |
| Kenku ArtificerAlchemy Horizons: Baldur's Gate · 125 | Alchemy Horizons: Baldur's Gate | 125 | Uncommon | — |
| Kenrith's TransformationForgotten Realms Commander · 162 | Forgotten Realms Commander | 162 | Uncommon | €0.76 |
| Kenrith's TransformationThrone of Eldraine · 164 | Throne of Eldraine | 164 | Uncommon | €0.91 |
| Kenrith's TransformationThrone of Eldraine · 395 | Throne of Eldraine | 395 | Uncommon | €1.28 |
| Kenrith's TransformationThe List Tokens · AFC-162 | The List Tokens | AFC-162 | Uncommon | €0.86 |
| Kenrith's TransformationWilds of Eldraine Commander · 128 | Wilds of Eldraine Commander | 128 | Uncommon | €1.24 |
| Kenrith's TransformationFoundations Commander · 212 | Foundations Commander | 212 | Uncommon | $0.39 |
| Keral Keep DisciplesCore Set 2021 · 334 | Core Set 2021 | 334 | Uncommon | €0.33 |
| Keskit, the Flesh SculptorCommander Legends · 131 | Commander Legends | 131 | Uncommon | €0.13 |
| 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 | — |
| Kessig Forgemaster // Flameheart WerewolfShadows over Innistrad · 169 | Shadows over Innistrad | 169 | Uncommon | €0.10 |
| Kessig MalcontentsAvacyn Restored · 142 | Avacyn Restored | 142 | Uncommon | €0.17 |
| Kessig Naturalist // Lord of the UlvenwaldInnistrad: Double Feature · 231 | Innistrad: Double Feature | 231 | Uncommon | €0.22 |
| Kessig Naturalist // Lord of the UlvenwaldInnistrad: Midnight Hunt · 231 | Innistrad: Midnight Hunt | 231 | Uncommon | €0.14 |
| Kessig Naturalist // Lord of the UlvenwaldInnistrad: Midnight Hunt · 310 | Innistrad: Midnight Hunt | 310 | Uncommon | €0.12 |
| Kessig Prowler // Sinuous PredatorEldritch Moon · 163 | Eldritch Moon | 163 | Uncommon | €0.11 |
| Ketria CrystalIkoria: Lair of Behemoths · 236 | Ikoria: Lair of Behemoths | 236 | Uncommon | €0.11 |
| Keys to the HouseDuskmourn: House of Horror · 251 | Duskmourn: House of Horror | 251 | Uncommon | €0.09 |
| Key to the Side-DoorThe Hobbit · 175 | The Hobbit | 175 | Uncommon | €0.09 |
| KezzerdrixVintage Masters · 124 | Vintage Masters | 124 | Uncommon | — |
| Khabál GhoulArabian Nights · 30 | Arabian Nights | 30 | Uncommon | €72.23 |
| Khalni Ambush // Khalni TerritoryZendikar Rising · 192 | Zendikar Rising | 192 | Uncommon | €0.40 |
| Khalni GardenLegendary Cube Prize Pack · 143 | Legendary Cube Prize Pack | 143 | Uncommon | — |
| Khalni GemZendikar · 205 | Zendikar | 205 | Uncommon | €0.23 |
| Khenra CharioteerAmonkhet · 201 | Amonkhet | 201 | Uncommon | €0.23 |