| 32 | Kindred Summons | Ryan Pancoast | Green | R | Commander 2017 |
| 163 | Kindred Summons | Ryan Pancoast | Green | R | Adventures in the Forgotten Realms Commander |
| 150 | Kindslaver | Zoltan Boros | | R | Unstable |
| 180 | King Harald's Revenge | Lorenzo Mastroianni | Green | C | Kaldheim |
| 74 | King Macar, the Gold-Cursed | Greg Staples | Black | R | Journey into Nyx |
| 219 | King Narfi's Betrayal | Chase Stone | Blue/Black | R | Kaldheim |
| 272 | King Narfi's Betrayal | Chase Stone | Blue/Black | R | The Lost Caverns of Ixalan Commander |
| 211 | King of the Oathbreakers | Tatiana Veryayskaya | White/Black | R | The Lord of the Rings: Tales of Middle Earth |
| 369 | King of the Oathbreakers | Tatiana Veryayskaya | White/Black | R | The Lord of the Rings: Tales of Middle Earth |
| 662 | King of the Oathbreakers | Tatiana Veryayskaya | White/Black | R | The Lord of the Rings: Tales of Middle Earth |
| King Suleiman | Mark Poole | White | R | Arabian Nights |
| 36 | Kingfisher | Edward P. Beard, Jr. | Blue | C | Urza's Destiny |
| 173 | Kingpin's Pet | Mark Zug | White/Black | C | Gatecrash |
| King's Assassin | Zina Saunders | Black | R | Portal |
| 43 | King's Assassin | Zina Saunders | Black | R | Mystery Booster 2: Convention Edition |
| 18 | Kinjalli's Caller | Sara Winters | White | C | Ixalan |
| 19 | Kinjalli's Dawnrunner | Arash Radkia | White | U | The Lost Caverns of Ixalan |
| 19 | Kinjalli's Sunwing | Simon Dominic | White | R | Ixalan |
| 130 | Kinjalli's Sunwing | Simon Dominic | White | R | The Lost Caverns of Ixalan Commander |
| 23 | Kinsbaile Balloonist | Zoltan Boros & Gabor Szikszai | White | C | Lorwyn |
| 14 | Kinsbaile Borderguard | Christopher Moeller | White | R | Morningtide |
| 1 | Kinsbaile Cavalier | Wayne Reynolds | White | R | Historic Anthology 1 |
| 15 | Kinsbaile Cavalier | Wayne Reynolds | White | R | Morningtide |
| 17 | Kinsbaile Cavalier | Wayne Reynolds | White | R | Duel Decks: Knights vs. Dragons |
| 29 | Kinsbaile Courier | Mila Pesic | White | C | Commander Legends |
| 15 | Kinsbaile Skirmisher | Thomas Denmark | White | C | Duel Decks: Elspeth vs. Kiora |
| 16 | Kinsbaile Skirmisher | Thomas Denmark | White | C | Magic 2015 Core Set |
| 24 | Kinsbaile Skirmisher | Thomas Denmark | White | C | Lorwyn |
| 41 | Kinscaer Harpoonist | Thomas M. Baxa | Blue | C | Shadowmoor |
| 52 | Kiora Bests the Sea God | Victor Adame Minguez | Blue | M | Theros Beyond Death |
| 213 | Kiora, Master of the Depths | Jason Chan | Blue/Green | M | Battle for Zendikar |
| 35 | Kiora, Sovereign of the Deep | Chris Rallis | Blue/Green | M | March of the Machine: The Aftermath |
| 85 | Kiora, Sovereign of the Deep | Dominik Mayer | Blue/Green | M | March of the Machine: The Aftermath |
| 135 | Kiora, Sovereign of the Deep | Chris Rallis | Blue/Green | M | March of the Machine: The Aftermath |
| 170 | Kiora, Sovereign of the Deep | Chris Rallis | Blue/Green | M | March of the Machine: The Aftermath |
| 214 | Kiora, Sovereign of the Deep | Dominik Mayer | Blue/Green | M | March of the Machine: The Aftermath |
| 34 | Kiora, the Crashing Wave | Tyler Jacobson | Blue/Green | M | Duel Decks: Elspeth vs. Kiora |
| 149 | Kiora, the Crashing Wave | Scott M. Fischer | Blue/Green | M | Born of the Gods |
| 45 | Kiora, the Rising Tide | Julian Kok Joon Wen | Blue | R | Magic: The Gathering Foundations |
| 309 | Kiora, the Rising Tide | Magali Villeneuve | Blue | R | Magic: The Gathering Foundations |
| 377 | Kiora, the Rising Tide | Magali Villeneuve | Blue | R | Magic: The Gathering Foundations |
| 455 | Kiora, the Rising Tide | Julian Kok Joon Wen | Blue | R | Magic: The Gathering Foundations |
| 10 | Kiora, the Tide's Fury | Magali Villeneuve | Blue | M | Jumpstart: Historic Horizons |
| 48 | Kiora's Dambreaker | Mathias Kollros | Blue | C | Ravnica Remastered |
| 58 | Kiora's Dambreaker | Mathias Kollros | Blue | C | War of the Spark |
| 44 | Kiora's Dismissal | Mathias Kollros | Blue | U | Journey into Nyx |
| 52 | Kiora's Follower | Eric Deschamps | Blue/Green | U | Duel Decks: Elspeth vs. Kiora |
| 150 | Kiora's Follower | Eric Deschamps | Blue/Green | U | Born of the Gods |
| 273 | Kiora's Follower | Eric Deschamps | Blue/Green | U | The Lost Caverns of Ixalan Commander |
| 40 | Kira, Great Glass-Spinner | Kev Walker | Blue | R | Betrayers of Kamigawa |
| 49 | Kira, Great Glass-Spinner | Kev Walker | Blue | R | Modern Masters |
| 154 | Kira, Great Glass-Spinner | Kev Walker | Blue | R | Jumpstart |
| 7 | Kirri, Talented Sprout | Simon Dominic | White/Red/Green | M | Outlaws of Thunder Junction Commander |
| 43 | Kirri, Talented Sprout | Simon Dominic | White/Red/Green | M | Outlaws of Thunder Junction Commander |
| 27 | Kirtar's Desire | Pete Venters | White | C | Odyssey |
| 14 | Kirtar's Wrath | Kev Walker | White | R | Commander Anthology |
| 15 | Kirtar's Wrath | Kev Walker | White | R | Commander 2013 Edition |
| 28 | Kirtar's Wrath | Kev Walker | White | R | Odyssey |
| 35 | Kirtar's Wrath | Kev Walker | White | U | Commander Masters |
| 91 | Kirtar's Wrath | Kev Walker | White | R | Innistrad: Crimson Vow Commander |
| Kismet | Kaja Foglio | White | U | Fifth Edition |
| Kismet | Kaja Foglio | White | U | Fourth Edition |
| Kismet | Kaja Foglio | White | U | Legends |
| 17 | Kismet | Kaja Foglio | White | R | Masters Edition IV |
| 27 | Kismet | Kaja Foglio | White | U | Classic Sixth Edition |
| Kiss of Death | Melissa A. Benson | Black | U | Portal Second Age |
| 177 | Kiss of the Amesha | Todd Lockwood | White/Blue | U | Shards of Alara |
| 225 | Kiss of the Amesha | Todd Lockwood | White/Blue | U | Battlebond |
| 27 | Kitchen Finks | Kev Walker | White/Green | S | Ultimate Box Toppers |
| 85 | Kitchen Finks | Kev Walker | White/Green | U | Mystery Booster 2: Convention Edition |
| 190 | Kitchen Finks | Kev Walker | White/Green | U | Modern Masters |
| 216 | Kitchen Finks | Kev Walker | White/Green | U | Ultimate Masters |
| 229 | Kitchen Finks | Kev Walker | White/Green | U | Shadowmoor |
| 210 | Kite Shield | Jim Pavelec | | U | Magic 2012 |
| 126 | Kitesail | Cyril Van Der Haegen | | C | Worldwake |
| 208 | Kitesail | Cyril Van Der Haegen | | U | Magic 2013 |
| 212 | Kitesail | Cyril Van Der Haegen | | C | Conspiracy: Take the Crown |
| 218 | Kitesail | Cyril Van Der Haegen | | C | Modern Masters 2015 Edition |
| 261 | Kitesail | Ben Hill | | C | March of the Machine |
| 781 | Kitesail | Cyril Van Der Haegen | | C | Jumpstart 2022 |
| 10 | Kitesail Apprentice | Austin Hsu | White | C | Worldwake |
| 12 | Kitesail Apprentice | Austin Hsu | White | C | Game Night: Free-For-All |
| 20 | Kitesail Cleric | PINDURSKI | White | U | Zendikar Rising |
| 41 | Kitesail Corsair | Greg Opalinski | Blue | C | Rivals of Ixalan |
| 76 | Kitesail Corsair | Greg Opalinski | Blue | C | Commander Legends |
| 120 | Kitesail Corsair | Greg Opalinski | Blue | C | Battlebond |
| 155 | Kitesail Corsair | Greg Opalinski | Blue | C | Jumpstart |
| 510 | Kitesail Corsair | Greg Opalinski | Blue | C | Magic: The Gathering Foundations |
| 107 | Kitesail Freebooter | Dan Scott | Black | U | Core Set 2021 |
| 110 | Kitesail Freebooter | Dan Scott | Black | U | Ixalan |
| 61 | Kitesail Larcenist | Sidharth Chaturvedi | Blue | R | The Lost Caverns of Ixalan |
| 364 | Kitesail Larcenist | Sidharth Chaturvedi | Blue | R | The Lost Caverns of Ixalan |
| 33 | Kitesail Scout | Dan Scott | White | C | Battle for Zendikar |
| 77 | Kitesail Skirmisher | Sidharth Chaturvedi | Blue | C | Commander Legends |
| 10 | Kithkin Shielddare | Christopher Moeller | White | C | Shadowmoor |
| 8 | Kithkin Spellduster | Trevor Hairsine | White | C | Eventide |
| 54 | Kitsa, Otterball Elite | Zoltan Boros | Blue | M | Bloomburrow |
| 304 | Kitsa, Otterball Elite | David Petersen | Blue | M | Bloomburrow |
| 22 | Kitsune Ace | Joseph Weston | White | C | Kamigawa: Neon Dynasty |
| 204 | Kitsune Ace | Joseph Weston | White | C | Jumpstart 2022 |
| 25 | Kitsune Blademaster | Keith Garletts | White | C | Champions of Kamigawa |
| 15 | Kitsune Bonesetter | Heather Hudson | White | C | Saviors of Kamigawa |
| 16 | Kitsune Dawnblade | Carl Critchlow | White | C | Saviors of Kamigawa |
| 26 | Kitsune Diviner | Pete Venters | White | C | Champions of Kamigawa |
| 27 | Kitsune Healer | Michael Sutfin | White | C | Champions of Kamigawa |
| 17 | Kitsune Loreweaver | Eric Polak | White | C | Saviors of Kamigawa |
| 28 | Kitsune Mystic | Jim Murray | White | R | Champions of Kamigawa |
| 14 | Kitsune Palliator | Dave Dorman | White | U | Betrayers of Kamigawa |
| 29 | Kitsune Riftwalker | Pete Venters | White | C | Champions of Kamigawa |
| 18 | Kiyomaro, First to Stand | Kev Walker | White | R | Saviors of Kamigawa |
| Kjeldoran Escort | Bryon Wackwitz | White | C | Alliances |
| Kjeldoran Escort | Bryon Wackwitz | White | C | Alliances |
| Kjeldoran Frostbeast | Mark Poole | White/Green | U | Ice Age |
| 156 | Kjeldoran Frostbeast | Mark Poole | White/Green | U | Masters Edition III |
| Kjeldoran Outpost | Jeff A. Menges | | R | Alliances |
| 233 | Kjeldoran Outpost | Jeff A. Menges | | R | Masters Edition II |
| 301 | Kjeldoran Outpost | Noah Bradley | | R | Vintage Masters |
| Kjeldoran Skycaptain | Mark Poole | White | U | Fifth Edition |
| Kjeldoran Skycaptain | Mark Poole | White | U | Ice Age |
| 23 | Kjeldoran Skycaptain | Mark Poole | White | C | Masters Edition II |
| Kjeldoran Skyknight | Mark Poole | White | C | Ice Age |
| 51 | Klauth's Will | Olivier Bernard | Red/Green | R | Adventures in the Forgotten Realms Commander |
| 321 | Klauth's Will | Olivier Bernard | Red/Green | R | Adventures in the Forgotten Realms Commander |
| 220 | Klothys, God of Destiny | Magali Villeneuve | Red/Green | M | Theros Beyond Death |
| 176 | Klothys's Design | Lie Setiawan | Green | U | Theros Beyond Death |
| 42 | Knacksaw Clique | Steven Belledin | Blue | R | Shadowmoor |
| 23 | Knight of Dawn's Light | Billy Christian | White | U | Dominaria United |
| 19 | Knight of Doves | Volkan Baga | White | U | Wilds of Eldraine |
| Knight of Dusk | Ron Spencer | Black | U | Tempest |
| 152 | Knight of Dusk | rk post | Black | U | Tenth Edition |
| 96 | Knight of Dusk's Shadow | Wisnu Tan | Black | U | Dominaria United |
| 518 | Knight of Lost Causes (playtest) | Sandy Lee | White | R | Mystery Booster 2: Convention Edition |
| 14 | Knight of Sorrows | Zezhou Chen | White | C | Ravnica Allegiance |
| Knight of Stromgald | Mark Poole | Black | U | Fifth Edition |
| Knight of Stromgald | Mark Poole | Black | U | Ice Age |
| 99 | Knight of Stromgald | Mark Poole | Black | U | Masters Edition II |
| 10 | Knight of Sursi | Cyril Van Der Haegen | White | C | Future Sight |
| 22 | Knight of Sursi | Cyril Van Der Haegen | White | C | Time Spiral Remastered |
| 23 | Knight of the Holy Nimbus | Wayne England | White | U | Time Spiral Remastered |
| 26 | Knight of the Holy Nimbus | Wayne England | White | U | Time Spiral |
| 12 | Knight of the Kitchen Sink (a) | Mark A. Nelson | White | U | Unstable |
| 12 | Knight of the Kitchen Sink (b) | Mark A. Nelson | White | U | Unstable |
| 12 | Knight of the Kitchen Sink (c) | Mark A. Nelson | White | U | Unstable |
| 12 | Knight of the Kitchen Sink (d) | Mark A. Nelson | White | U | Unstable |
| 12 | Knight of the Kitchen Sink (e) | Mark A. Nelson | White | U | Unstable |
| 12 | Knight of the Kitchen Sink (f) | Mark A. Nelson | White | U | Unstable |
| 188 | Knight of the Last Breath | Milivoj Ćeran | White/Black | U | Ravnica Allegiance |
| 331 | Knight of the Last Breath | Milivoj Ćeran | White/Black | U | March of the Machine Commander |
| Knight of the Mists | Harold McNeill | Blue | C | Visions |
| 20 | Knight of the Pilgrim's Road | David Gaillet | White | C | Magic Origins |
| 15 | Knight of the Skyward Eye | Matt Stewart | White | C | Shards of Alara |
| 19 | Knight of the Skyward Eye | Matt Stewart | White | C | Masters 25 |
| 138 | Knight of the Stampede | Steve Argyle | Green | C | Rivals of Ixalan |
| 18 | Knight of the Tusk | Jesper Ejsing | White | C | Core Set 2019 |
| 114 | Knight of the Tusk | Jesper Ejsing | White | C | Jumpstart |
| 17 | Knight-Captain of Eos | Chris Rahn | White | R | Shards of Alara |
| 26 | Knight-Errant of Eos | Kevin Sidharta | White | R | March of the Machine |
| 346 | Knight-Errant of Eos | Kevin Sidharta | White | R | March of the Machine |
| 55 | Knightfisher | Jakob Eirich | Blue | U | Bloomburrow |
| 328 | Knights' Charge | Paul Scott Canavan | White/Black | R | Throne of Eldraine |
| 333 | Knights' Charge | Paul Scott Canavan | White/Black | R | March of the Machine Commander |
| 59 | Knights of Dol Amroth | Eelis Kyttanen | Blue | C | The Lord of the Rings: Tales of Middle Earth |
| 432 | Knights of Dol Amroth | Tyler Jacobson | Blue | C | The Lord of the Rings: Tales of Middle Earth |
| 510 | Knights of Dol Amroth | Eelis Kyttanen | Blue | C | The Lord of the Rings: Tales of Middle Earth |
| 76 | Knights of the Black Rose | Mark Zug | White/Black | U | Conspiracy: Take the Crown |
| 332 | Knights of the Black Rose | Mark Zug | White/Black | U | March of the Machine Commander |
| Knights of Thorn | Christopher Rush | White | R | The Dark |
| 19 | Knights of Thorn | Christopher Rush | White | C | Masters Edition |
| 12 | Knight's Pledge | Magali Villeneuve | White | C | Arena Base Set |
| 19 | Knight's Pledge | Magali Villeneuve | White | C | Core Set 2019 |
| 82 | Knollspine Dragon | Steve Prescott | Red | R | Game Night: Free-For-All |
| 98 | Knollspine Dragon | Steve Prescott | Red | R | Shadowmoor |
| 224 | Knollspine Dragon | Olivier Bernard | Red | R | The Lord of the Rings: Tales of Middle Earth Commander |
| 99 | Knollspine Invocation | Dave Dorman | Red | R | Shadowmoor |
| 114 | Knotvine Mystic | Ariel Olivetti | White/Red/Green | U | Conflux |