| Knight of StromgaldPro Tour Collector Set Tokens · ll138 | Pro Tour Collector Set Tokens | ll138 | Uncommon | $0.99 |
| Knight of StromgaldWorld Championship Decks 1997 Tokens · js171 | World Championship Decks 1997 Tokens | js171 | Uncommon | $0.57 |
| Knight of StromgaldMasters Edition II · 99 | Masters Edition II | 99 | Uncommon | — |
| Knight of the Holy NimbusThe List Tokens · TSP-26 | The List Tokens | TSP-26 | Uncommon | €0.07 |
| Knight of the Holy NimbusTime Spiral · 26 | Time Spiral | 26 | Uncommon | €0.05 |
| Knight of the Holy NimbusTime Spiral Remastered · 23 | Time Spiral Remastered | 23 | Uncommon | €0.11 |
| Knight of the Kitchen SinkUnstable · 12a | Unstable | 12a | Uncommon | €0.35 |
| Knight of the Kitchen SinkUnstable · 12b | Unstable | 12b | Uncommon | €0.31 |
| Knight of the Kitchen SinkUnstable · 12c | Unstable | 12c | Uncommon | €0.26 |
| Knight of the Kitchen SinkUnstable · 12d | Unstable | 12d | Uncommon | €0.21 |
| Knight of the Kitchen SinkUnstable · 12e | Unstable | 12e | Uncommon | €0.35 |
| Knight of the Kitchen SinkUnstable · 12f | Unstable | 12f | Uncommon | €0.40 |
| Knight of the Last BreathMarch of the Machine Commander · 331 | March of the Machine Commander | 331 | Uncommon | €0.11 |
| Knight of the Last BreathRavnica Allegiance · 188 | Ravnica Allegiance | 188 | Uncommon | $0.04 |
| Knight of the WidgetUnstable · 13 | Unstable | 13 | Uncommon | €0.09 |
| Knights of the Black RoseConspiracy: Take the Crown · 76 | Conspiracy: Take the Crown | 76 | Uncommon | €0.31 |
| Knights of the Black RoseMarch of the Machine Commander · 332 | March of the Machine Commander | 332 | Uncommon | €0.24 |
| Knights of the Black RoseThe List Tokens · MOC-332 | The List Tokens | MOC-332 | Uncommon | — |
| Knockout BlowStreets of New Capenna · 20 | Streets of New Capenna | 20 | Uncommon | €0.17 |
| Knockout ManeuverSecrets of Strixhaven Mystical Archive · 54 | Secrets of Strixhaven Mystical Archive | 54 | Uncommon | €0.06 |
| Knockout ManeuverSecrets of Strixhaven Mystical Archive · 119 | Secrets of Strixhaven Mystical Archive | 119 | Uncommon | €0.19 |
| Knockout ManeuverSecrets of Strixhaven Mystical Archive · 184 | Secrets of Strixhaven Mystical Archive | 184 | Uncommon | €2.80 |
| Knockout ManeuverTarkir: Dragonstorm · 147 | Tarkir: Dragonstorm | 147 | Uncommon | €0.07 |
| Knotvine MysticConflux · 114 | Conflux | 114 | Uncommon | €0.38 |
| Knowledge and PowerJourney into Nyx · 101 | Journey into Nyx | 101 | Uncommon | $0.06 |
| Knowledge SeekerAvatar: The Last Airbender · 60 | Avatar: The Last Airbender | 60 | Uncommon | €0.11 |
| Knowledge VaultMasters Edition III · 198 | Masters Edition III | 198 | Uncommon | — |
| Kobold Drill SergeantLegends · 154 | Legends | 154 | Uncommon | €8.47 |
| Kobold Drill SergeantMasters Edition III · 104 | Masters Edition III | 104 | Uncommon | — |
| Kobold OverlordMasters Edition III · 105 | Masters Edition III | 105 | Uncommon | — |
| Kobold TaskmasterLegends · 156 | Legends | 156 | Uncommon | €4.53 |
| Kolaghan ForerunnersDragons of Tarkir · 144 | Dragons of Tarkir | 144 | Uncommon | $0.08 |
| Kolaghan MonumentDragons of Tarkir · 241 | Dragons of Tarkir | 241 | Uncommon | €0.07 |
| Kolaghan MonumentIconic Masters · 217 | Iconic Masters | 217 | Uncommon | €0.09 |
| Kolaghan WarmongerMarch of the Machine: The Aftermath · 17 | March of the Machine: The Aftermath | 17 | Uncommon | €0.07 |
| Kolaghan WarmongerMarch of the Machine: The Aftermath · 67 | March of the Machine: The Aftermath | 67 | Uncommon | €0.09 |
| Kolaghan WarmongerMarch of the Machine: The Aftermath · 117 | March of the Machine: The Aftermath | 117 | Uncommon | €0.16 |
| Kolaghan WarmongerMarch of the Machine: The Aftermath · 201 | March of the Machine: The Aftermath | 201 | Uncommon | $1.24 |
| Kolaghan WarmongerThe List Tokens · MAT-67 | The List Tokens | MAT-67 | Uncommon | $0.33 |
| Koll, the ForgemasterKaldheim · 220 | Kaldheim | 220 | Uncommon | €0.16 |
| Koll, the ForgemasterKaldheim · 325 | Kaldheim | 325 | Uncommon | €0.21 |
| Koll, the ForgemasterMagic Online Promos · 88390 | Magic Online Promos | 88390 | Uncommon | — |
| Konda's HatamotoChampions of Kamigawa · 31 | Champions of Kamigawa | 31 | Uncommon | €0.13 |
| Kongming, "Sleeping Dragon"Masters 25 · 20 | Masters 25 | 20 | Uncommon | €0.10 |
| Konstrari CharmReality Fracture · 138 | Reality Fracture | 138 | Uncommon | €0.10 |
| Konstrari CharmReality Fracture · 433 | Reality Fracture | 433 | Uncommon | €0.19 |
| Kor AeronautDuel Decks: Elspeth vs. Tezzeret · 10 | Duel Decks: Elspeth vs. Tezzeret | 10 | Uncommon | $0.06 |
| Kor AeronautZendikar · 17 | Zendikar | 17 | Uncommon | €0.03 |
| Kor BlademasterZendikar Rising · 21 | Zendikar Rising | 21 | Uncommon | €0.16 |
| Kor BladewhirlBattle for Zendikar · 34 | Battle for Zendikar | 34 | Uncommon | €0.07 |