| Kayla's Music BoxThe Brothers' War Commander · 15 | The Brothers' War Commander | 15 | Rare | €0.11 |
| Kayla's Music BoxThe Brothers' War Commander · 62 | The Brothers' War Commander | 62 | Rare | €0.20 |
| Kayla's Music BoxMagic Online Promos · 105832 | Magic Online Promos | 105832 | Rare | — |
| Kayla's Music BoxMagic Online Promos · 105836 | Magic Online Promos | 105836 | Rare | — |
| Kayla's ReconstructionThe Brothers' War · 10 | The Brothers' War | 10 | Rare | €0.20 |
| Kayla's ReconstructionThe Brothers' War · 303 | The Brothers' War | 303 | Rare | $0.26 |
| Kayla's ReconstructionThe Brothers' War Promos Tokens · 10p | The Brothers' War Promos Tokens | 10p | Rare | €0.20 |
| Kayla's ReconstructionThe Brothers' War Promos Tokens · 10s | The Brothers' War Promos Tokens | 10s | Rare | $0.40 |
| Kayla's ReconstructionMagic Online Promos · 105642 | Magic Online Promos | 105642 | Rare | — |
| KaysaAlliances · 96 | Alliances | 96 | Rare | €3.31 |
| KaysaMasters Edition II · 170 | Masters Edition II | 170 | Rare | — |
| Kazandu Mammoth // Kazandu ValleyZendikar Rising Promos · 189s | Zendikar Rising Promos | 189s | Rare | €0.77 |
| Kazandu Mammoth // Kazandu ValleyZendikar Rising · 189 | Zendikar Rising | 189 | Rare | €0.20 |
| Kazandu Mammoth // Kazandu ValleyZendikar Rising · 305 | Zendikar Rising | 305 | Rare | $0.27 |
| Kazandu Mammoth // Kazandu ValleyMagic Online Promos · 83846 | Magic Online Promos | 83846 | Rare | — |
| Kazandu TuskcallerCommander 2013 · 152 | Commander 2013 | 152 | Rare | €0.15 |
| Kazandu TuskcallerCommander 2021 · 196 | Commander 2021 | 196 | Rare | €0.24 |
| Kazandu TuskcallerCommander Anthology · 121 | Commander Anthology | 121 | Rare | €0.10 |
| Kazandu TuskcallerRise of the Eldrazi · 191 | Rise of the Eldrazi | 191 | Rare | €0.18 |
| Kaza, Roil ChaserOutlaws of Thunder Junction Commander · 232 | Outlaws of Thunder Junction Commander | 232 | Rare | €0.17 |
| Kaza, Roil ChaserZendikar Rising Promos · 225p | Zendikar Rising Promos | 225p | Rare | €0.32 |
| Kaza, Roil ChaserZendikar Rising Promos · 225s | Zendikar Rising Promos | 225s | Rare | €0.45 |
| Kaza, Roil ChaserZendikar Rising · 225 | Zendikar Rising | 225 | Rare | €0.23 |
| Kaza, Roil ChaserZendikar Rising · 367 | Zendikar Rising | 367 | Rare | €0.37 |
| Kaza, Roil ChaserMagic Online Promos · 83806 | Magic Online Promos | 83806 | Rare | — |
| Kazarov, Sengir PurebloodDominaria · 96 | Dominaria | 96 | Rare | €0.17 |
| Kazarov, Sengir PurebloodDominaria Promos · 96s | Dominaria Promos | 96s | Rare | $0.27 |
| Kazuul, Tyrant of the CliffsCommander 2016 · 130 | Commander 2016 | 130 | Rare | $0.25 |
| Kazuul, Tyrant of the CliffsCommander Legends: Battle for Baldur's Gate · 800 | Commander Legends: Battle for Baldur's Gate | 800 | Rare | €0.09 |
| Kazuul, Tyrant of the CliffsMurders at Karlov Manor Commander · 157 | Murders at Karlov Manor Commander | 157 | Rare | €0.31 |
| Kazuul, Tyrant of the CliffsNew Capenna Commander · 270 | New Capenna Commander | 270 | Rare | €0.28 |
| Kazuul, Tyrant of the CliffsStarter Commander Decks · 148 | Starter Commander Decks | 148 | Rare | $0.16 |
| Kazuul, Tyrant of the CliffsWorldwake · 84 | Worldwake | 84 | Rare | €0.32 |
| Kazuul, Tyrant of the CliffsSecret Lair Drop Tokens · 2403 | Secret Lair Drop Tokens | 2403 | Rare | $1.04 |
| Kazuul WarlordZendikar · 134 | Zendikar | 134 | Rare | €0.47 |
| Kederekt LeviathanDouble Masters 2022 · 55 | Double Masters 2022 | 55 | Rare | €0.47 |
| Kederekt LeviathanDouble Masters 2022 · 431 | Double Masters 2022 | 431 | Rare | €2.26 |
| Kederekt LeviathanShards of Alara · 48 | Shards of Alara | 48 | Rare | €0.33 |
| Kederekt ParasiteConflux · 48 | Conflux | 48 | Rare | €5.49 |
| Kederekt ParasiteDuskmourn: House of Horror Commander · 144 | Duskmourn: House of Horror Commander | 144 | Rare | €3.40 |
| Kederekt ParasiteThe List Tokens · CON-48 | The List Tokens | CON-48 | Rare | €3.00 |
| Kediss, Emberclaw FamiliarSecret Lair Drop Tokens · 2364 | Secret Lair Drop Tokens | 2364 | Rare | €9.71 |
| Keen DuelistCommander 2021 · 42 | Commander 2021 | 42 | Rare | €0.97 |
| Keen DuelistCommander 2021 · 369 | Commander 2021 | 369 | Rare | €1.50 |
| Keen DuelistSecrets of Strixhaven Commander · 218 | Secrets of Strixhaven Commander | 218 | Rare | $0.32 |
| Keen DuelistSecret Lair Drop Tokens · 828 | Secret Lair Drop Tokens | 828 | Rare | $2.03 |
| Keen DuelistMagic Online Promos · 90058 | Magic Online Promos | 90058 | Rare | — |
| Keen-Eyed CuratorBloomburrow · 181 | Bloomburrow | 181 | Rare | $0.84 |
| Keen-Eyed CuratorBloomburrow · 322 | Bloomburrow | 322 | Rare | $2.43 |
| Keen-Eyed CuratorBloomburrow Promos · 181p | Bloomburrow Promos | 181p | Rare | $1.49 |