| Knollspine DragonTales of Middle-earth Commander · 224 | Tales of Middle-earth Commander | 224 | Rare | €0.10 |
| Knollspine DragonThe List Tokens · SHM-98 | The List Tokens | SHM-98 | Rare | $0.39 |
| Knollspine DragonShadowmoor · 98 | Shadowmoor | 98 | Rare | €0.82 |
| Knollspine InvocationShadowmoor · 99 | Shadowmoor | 99 | Rare | €0.34 |
| Knotvine PaladinAlara Reborn · 71 | Alara Reborn | 71 | Rare | €0.24 |
| Knotvine PaladinDuel Decks: Knights vs. Dragons · 10 | Duel Decks: Knights vs. Dragons | 10 | Rare | €0.23 |
| Knowing // Half the BattleUnknown Event · RZ15 | Unknown Event | RZ15 | Rare | $96.29 |
| Knowledge ExploitationMorningtide · 38 | Morningtide | 38 | Rare | €2.27 |
| Knowledge Is PowerMurders at Karlov Manor Commander · 42 | Murders at Karlov Manor Commander | 42 | Rare | €0.32 |
| Knowledge Is PowerMurders at Karlov Manor Commander · 352 | Murders at Karlov Manor Commander | 352 | Rare | $0.40 |
| Knowledge PoolMirrodin Besieged · 111 | Mirrodin Besieged | 111 | Rare | €0.78 |
| Knowledge PoolThe List Tokens · MBS-111 | The List Tokens | MBS-111 | Rare | €0.80 |
| Knowledge VaultLegends · 281 | Legends | 281 | Rare | €33.68 |
| Knucklebone WitchLorwyn · 120 | Lorwyn | 120 | Rare | €7.63 |
| Kobold OverlordLegends · 155 | Legends | 155 | Rare | $61.58 |
| Kodama of the Center TreeBetrayers of Kamigawa · 131 | Betrayers of Kamigawa | 131 | Rare | €0.24 |
| Kodama of the East TreeBloomburrow Commander · 227 | Bloomburrow Commander | 227 | Rare | €3.50 |
| Kodama of the East TreeCommander Legends · 239 | Commander Legends | 239 | Rare | €3.27 |
| Kodama of the East TreeCommander Legends · 582 | Commander Legends | 582 | Rare | €3.60 |
| Kodama of the East TreeMagic Online Promos · 86350 | Magic Online Promos | 86350 | Rare | — |
| Kodama of the North TreeChampions of Kamigawa · 222 | Champions of Kamigawa | 222 | Rare | €0.38 |
| Kodama of the South TreeChampions of Kamigawa · 223 | Champions of Kamigawa | 223 | Rare | €0.25 |
| Kodama's ReachSecret Lair Drop Tokens · 371 | Secret Lair Drop Tokens | 371 | Rare | €104.09 |
| Kodama's ReachSecret Lair Drop Tokens · 2294 | Secret Lair Drop Tokens | 2294 | Rare | €9.70 |
| Kogla and YidaroMarch of the Machine · 244 | March of the Machine | 244 | Rare | €1.22 |
| Kogla and YidaroMarch of the Machine · 311 | March of the Machine | 311 | Rare | €1.74 |
| Kogla and YidaroMarch of the Machine Promos · 244p | March of the Machine Promos | 244p | Rare | €0.78 |
| Kogla and YidaroMarch of the Machine Promos · 244s | March of the Machine Promos | 244s | Rare | €2.03 |
| Kogla, the Titan ApeIkoria: Lair of Behemoths · 162 | Ikoria: Lair of Behemoths | 162 | Rare | $3.04 |
| Kogla, the Titan ApeIkoria: Lair of Behemoths · 328 | Ikoria: Lair of Behemoths | 328 | Rare | €5.97 |
| Kogla, the Titan ApeIkoria: Lair of Behemoths Promos · 162p | Ikoria: Lair of Behemoths Promos | 162p | Rare | $3.06 |
| Kogla, the Titan ApeIkoria: Lair of Behemoths Promos · 162s | Ikoria: Lair of Behemoths Promos | 162s | Rare | €4.38 |
| Kogla, the Titan ApeIkoria: Lair of Behemoths Promos · 162★ | Ikoria: Lair of Behemoths Promos | 162★ | Rare | $2.70 |
| Kogla, the Titan ApeSecret Lair Drop Tokens · 1274 | Secret Lair Drop Tokens | 1274 | Rare | €16.88 |
| Kogla, the Titan ApeMagic Online Promos · 80849 | Magic Online Promos | 80849 | Rare | — |
| Kokusho, the Evening StarChampions of Kamigawa · 122 | Champions of Kamigawa | 122 | Rare | €15.36 |
| Kokusho, the Evening StarFrom the Vault: Dragons · 9 | From the Vault: Dragons | 9 | Rare | €21.56 |
| Kokusho, the Evening StarIconic Masters · 95 | Iconic Masters | 95 | Rare | €17.67 |
| Kokusho, the Evening StarSecret Lair Drop Tokens · 1528 | Secret Lair Drop Tokens | 1528 | Rare | $30.65 |
| Kokusho, the Evening StarThe List Tokens · DRB-9 | The List Tokens | DRB-9 | Rare | — |
| Kolaghan's CommandDouble Masters 2022 · 239 | Double Masters 2022 | 239 | Rare | $0.38 |
| Kolaghan's CommandDouble Masters 2022 · 381 | Double Masters 2022 | 381 | Rare | $1.57 |
| Kolaghan's CommandDouble Masters 2022 · 515 | Double Masters 2022 | 515 | Rare | €2.68 |
| Kolaghan's CommandDragons of Tarkir · 224 | Dragons of Tarkir | 224 | Rare | $0.60 |
| Kolaghan's CommandModern Horizons 3 Commander · 268 | Modern Horizons 3 Commander | 268 | Rare | $0.33 |
| Kolaghan's CommandDragons of Tarkir Promos · 224s | Dragons of Tarkir Promos | 224s | Rare | €1.38 |
| Kolaghan's CommandThe List Tokens · DTK-224 | The List Tokens | DTK-224 | Rare | $0.38 |
| Kolaghan's CommandHistoric Anthology 5 · 20 | Historic Anthology 5 | 20 | Rare | — |
| Kolaghan's CommandMagic Online Promos · 102301 | Magic Online Promos | 102301 | Rare | — |
| Kolaghan, the Storm's FuryCommander 2017 · 176 | Commander 2017 | 176 | Rare | €0.20 |