| Khenra CharioteerAmonkhet Remastered · 241 | Amonkhet Remastered | 241 | Uncommon | — |
| Khenra Spellspear // Gitaxian SpellstalkerMarch of the Machine · 151 | March of the Machine | 151 | Uncommon | €0.25 |
| Kheru BloodsuckerKhans of Tarkir · 75 | Khans of Tarkir | 75 | Uncommon | €0.09 |
| Kheru GoldkeeperTarkir: Dragonstorm · 199 | Tarkir: Dragonstorm | 199 | Uncommon | €0.20 |
| Kheru GoldkeeperTarkir: Dragonstorm · 313 | Tarkir: Dragonstorm | 313 | Uncommon | €0.29 |
| Kibo's BananamobileUnknown Event · UA05d | Unknown Event | UA05d | Uncommon | — |
| Kid LokiMarvel Super Heroes · 63 | Marvel Super Heroes | 63 | Uncommon | €0.20 |
| Kiku's ShadowSaviors of Kamigawa · 77 | Saviors of Kamigawa | 77 | Uncommon | €0.08 |
| Kill! Destroy!Unhinged · 58 | Unhinged | 58 | Uncommon | €0.31 |
| Killer BeesFourth Edition Foreign Black Border · 254 | Fourth Edition Foreign Black Border | 254 | Uncommon | €2.10 |
| Killer BeesFourth Edition · 254 | Fourth Edition | 254 | Uncommon | €0.26 |
| Killer BeesFifth Edition · 307 | Fifth Edition | 307 | Uncommon | $0.37 |
| Killer BeesRenaissance · 146 | Renaissance | 146 | Uncommon | €0.51 |
| Killer BeesMasters Edition III · 126 | Masters Edition III | 126 | Uncommon | — |
| Killer's MaskDuskmourn: House of Horror · 104 | Duskmourn: House of Horror | 104 | Uncommon | €0.05 |
| Killer WhaleBeatdown Box Set · 11 | Beatdown Box Set | 11 | Uncommon | €0.10 |
| Killer WhaleExodus · 37 | Exodus | 37 | Uncommon | €0.15 |
| Killer WhaleThe List Tokens · EXO-37 | The List Tokens | EXO-37 | Uncommon | $0.09 |
| Killer WhaleTempest Remastered · 55 | Tempest Remastered | 55 | Uncommon | — |
| Killian, Ink DuelistSecrets of Strixhaven Commander · 317 | Secrets of Strixhaven Commander | 317 | Uncommon | €0.17 |
| Killian, Ink DuelistStrixhaven: School of Mages · 197 | Strixhaven: School of Mages | 197 | Uncommon | $0.29 |
| Killian's ConfidenceSecrets of Strixhaven · 197 | Secrets of Strixhaven | 197 | Uncommon | €0.09 |
| Killing GlareGatecrash · 70 | Gatecrash | 70 | Uncommon | €0.12 |
| Killing GlareFoundations Jumpstart · 120 | Foundations Jumpstart | 120 | Uncommon | €0.18 |
| Killing WaveInnistrad Remastered · 121 | Innistrad Remastered | 121 | Uncommon | €0.24 |
| Killing WaveInnistrad Remastered · 386 | Innistrad Remastered | 386 | Uncommon | €0.38 |
| Killing WaveThe List Tokens · INR-121 | The List Tokens | INR-121 | Uncommon | — |
| Killmonger, Scourge of WakandaMarvel Super Heroes · 218 | Marvel Super Heroes | 218 | Uncommon | €0.09 |
| Kiln WalkerNew Phyrexia · 142 | New Phyrexia | 142 | Uncommon | €0.07 |
| Kindle the CarnageDissension · 66 | Dissension | 66 | Uncommon | €0.25 |
| Kindle the Inner FlameLorwyn Eclipsed · 147 | Lorwyn Eclipsed | 147 | Uncommon | €0.09 |
| Kindly CognicianUnstable · 37 | Unstable | 37 | Uncommon | €0.04 |
| Kindly Stranger // Demon-Possessed WitchShadows over Innistrad · 119 | Shadows over Innistrad | 119 | Uncommon | $0.13 |
| Kindly Stranger // Demon-Possessed WitchShadows over Innistrad Remastered · 107 | Shadows over Innistrad Remastered | 107 | Uncommon | — |
| Kindred DenialAlchemy: Innistrad · 18 | Alchemy: Innistrad | 18 | Uncommon | — |
| Kinetic AugurCore Set 2021 · 154 | Core Set 2021 | 154 | Uncommon | €0.07 |
| King CheetahNinth Edition · 250 | Ninth Edition | 250 | Uncommon | €0.09 |
| King CheetahNinth Edition · 250★ | Ninth Edition | 250★ | Uncommon | $0.13 |
| King CrabUrza's Legacy · 34 | Urza's Legacy | 34 | Uncommon | $0.27 |
| King of the PrideModern Horizons 1 Timeshifts · 4 | Modern Horizons 1 Timeshifts | 4 | Uncommon | €0.30 |
| King of the PrideJumpstart 2022 · 57 | Jumpstart 2022 | 57 | Uncommon | €0.19 |
| King of the PrideFoundations Jumpstart · 214 | Foundations Jumpstart | 214 | Uncommon | €0.35 |
| King of the PrideModern Horizons · 16 | Modern Horizons | 16 | Uncommon | €0.29 |
| King of the PrideThe List Tokens · MH1-16 | The List Tokens | MH1-16 | Uncommon | €0.43 |
| King of the PrideJumpstart: Historic Horizons · 99 | Jumpstart: Historic Horizons | 99 | Uncommon | — |
| Kinjalli's DawnrunnerThe Lost Caverns of Ixalan · 19 | The Lost Caverns of Ixalan | 19 | Uncommon | €0.04 |
| Kinsbaile AspirantLorwyn Eclipsed · 21 | Lorwyn Eclipsed | 21 | Uncommon | €0.03 |
| Kin-Tree InvocationKhans of Tarkir · 183 | Khans of Tarkir | 183 | Uncommon | $0.09 |
| Kin-Tree InvocationThe List Tokens · KTK-183 | The List Tokens | KTK-183 | Uncommon | €0.13 |
| Kin-Tree SeveranceTarkir: Dragonstorm · 200 | Tarkir: Dragonstorm | 200 | Uncommon | €0.14 |