| 105 | Knight of the Ebon Legion | Alex Konstad | Black | R | Core Set 2020 |
| 6 | Knight of the Hokey Pokey | Kev Walker | White | C | Unglued |
| 8 | Knight of the Hokey Pokey | Kev Walker | White | C | Unsanctioned |
| 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 |
| 19 | Knight of the Keep | Bram Sels | White | C | Throne of Eldraine |
| 291 | Knight of the Keep | Nicholas Gregory | White | C | The Lord of the Rings: Tales of Middle Earth |
| 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 |
| 25 | Knight of the New Coalition | Jake Murray | White | C | March of the Machine |
| 20 | Knight of the Pilgrim's Road | David Gaillet | White | C | Magic Origins |
| 1 | Knight of the Reliquary | Wayne Reynolds | White/Green | M | Duel Decks: Knights vs. Dragons |
| 15 | Knight of the Reliquary | Michael Komarck | White/Green | R | Historic Anthology 2 |
| 113 | Knight of the Reliquary | Michael Komarck | White/Green | R | Conflux |
| 178 | Knight of the Reliquary | Michael Komarck | White/Green | R | Modern Masters |
| 203 | Knight of the Reliquary | Michael Komarck | White/Green | R | Iconic Masters |
| 379 | Knight of the Reliquary | Michael Komarck | White/Green | B | Time Spiral Remastered |
| 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 |
| 6 | Knight of the White Orchid | Mark Zug | White | R | Duel Decks: Knights vs. Dragons |
| 16 | Knight of the White Orchid | Mark Zug | White | R | Shards of Alara |
| 21 | Knight of the White Orchid | Mark Zug | White | R | Magic Origins |
| 88 | Knight of the White Orchid | Mark Zug | White | R | Innistrad: Midnight Hunt Commander |
| 92 | Knight of the White Orchid | Mark Zug | White | R | Innistrad: Crimson Vow Commander |
| 93 | Knight of the White Orchid | Mark Zug | White | R | Ikoria Commander |
| 95 | Knight of the White Orchid | Mark Zug | White | R | Commander 2021 |
| 193 | Knight of the White Orchid | Mark Zug | White | R | March of the Machine Commander |
| 13 | Knight of the Widget | Emrah Elmasli | White | U | Unstable |
| Knight of Valor | Jeff Miracola | White | C | Visions |
| 160 | Knight Paladin | Games Workshop | | R | Warhammer 40,000 Commander |
| 80 | Knight Rampager | Games Workshop | Red | R | Warhammer 40,000 Commander |
| 19 | Knight Watch | Matt Stewart | White | C | Gatecrash |
| 17 | Knight-Captain of Eos | Chris Rahn | White | R | Shards of Alara |
| 17 | Knighted Myr | Izzy | White | C | Modern Horizons 2 |
| 36 | Knighted Myr | Izzy | White | C | Commander Masters |
| 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 |
| 12 | Knighthood | Kev Walker | White | U | Urza's Legacy |
| 25 | Knighthood | Greg & Tim Hildebrandt | White | U | Seventh Edition |
| 8 | Knightly Valor | Matteo Bassini | White | U | Wilds of Eldraine Enchanting Tales |
| 13 | Knightly Valor | Matt Stewart | White | C | Return to Ravnica |
| 14 | Knightly Valor | Matt Stewart | White | C | Double Masters 2022 |
| 20 | Knightly Valor | Matt Stewart | White | U | Core Set 2019 |
| 22 | Knightly Valor | Matt Stewart | White | U | Magic Origins |
| 115 | Knightly Valor | Matt Stewart | White | C | Jumpstart |
| 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 |
| 20 | Knockout Blow | Zoltan Boros | White | U | Streets of New Capenna |
| 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 |
| 10 | Knotvine Paladin | Matt Stewart | White/Green | R | Duel Decks: Knights vs. Dragons |
| 71 | Knotvine Paladin | Matt Stewart | White/Green | R | Alara Reborn |
| 101 | Knowledge and Power | Jung Park | Red | U | Journey into Nyx |
| 38 | Knowledge Exploitation | Darrell Riche | Blue | R | Morningtide |
| 42 | Knowledge Is Power | Fay Dalton | White/Blue | R | Murders at Karlov Manor Commander |
| 352 | Knowledge Is Power | Fay Dalton | White/Blue | R | Murders at Karlov Manor Commander |
| 111 | Knowledge Pool | Mike Bierek | | R | Mirrodin Besieged |
| Knowledge Vault | Amy Weber | | R | Legends |
| 198 | Knowledge Vault | Anthony S. Waters | | U | Masters Edition III |
| 120 | Knucklebone Witch | Jim Pavelec | Black | R | Lorwyn |
| Kobold Drill Sergeant | Julie Baroh | Red | U | Legends |
| 104 | Kobold Drill Sergeant | Julie Baroh | Red | U | Masters Edition III |
| Kobold Overlord | Julie Baroh | Red | R | Legends |
| 105 | Kobold Overlord | Julie Baroh | Red | U | Masters Edition III |
| Kobold Taskmaster | Randy Asplund-Faith | Red | U | Legends |
| 65 | Kobold Taskmaster | Randy Asplund | Red | S | Time Spiral "Timeshifted" |
| 106 | Kobold Taskmaster | Randy Asplund | Red | C | Masters Edition III |
| 59 | Kobold Warcaller | Igor Grechanyi | Red | C | Alchemy Horizons: Baldur's Gate |
| Kobolds of Kher Keep | Julie Baroh | Red | C | Legends |
| 107 | Kobolds of Kher Keep | Julie Baroh | Red | C | Masters Edition III |
| 194 | Kobolds of Kher Keep | Paolo Parente | Red | C | Mystery Booster 2: Convention Edition |
| 131 | Kodama of the Center Tree | Jim Murray | Green | R | Betrayers of Kamigawa |
| 227 | Kodama of the East Tree | Daarken | Green | R | Bloomburrow Commander |
| 239 | Kodama of the East Tree | Daarken | Green | R | Commander Legends |
| 582 | Kodama of the East Tree | Daarken | Green | R | Commander Legends |
| 222 | Kodama of the North Tree | Shishizaru | Green | R | Champions of Kamigawa |
| 223 | Kodama of the South Tree | Ron Spears | Green | R | Champions of Kamigawa |
| 199 | Kodama of the West Tree | Daarken | Green | M | Kamigawa: Neon Dynasty |
| 392 | Kodama of the West Tree | TAPI岡/TAPIOCA | Green | M | Kamigawa: Neon Dynasty |
| 477 | Kodama of the West Tree | Daarken | Green | M | Kamigawa: Neon Dynasty |
| 224 | Kodama's Might | Terese Nielsen | Green | C | Champions of Kamigawa |
| 73 | Kodama's Reach | John Avon | Green | C | Zendikar Rising Commander |
| 120 | Kodama's Reach | Sam Burley | Green | C | Kamigawa: Neon Dynasty Commander |
| 134 | Kodama's Reach | Sam Burley | Green | C | Dominaria United Commander |
| 151 | Kodama's Reach | Heather Hudson | Green | C | Modern Masters |
| 154 | Kodama's Reach | Heather Hudson | Green | C | Commander 2017 |
| 155 | Kodama's Reach | Heather Hudson | Green | C | Commander 2016 |
| 163 | Kodama's Reach | Heather Hudson | Green | C | Magic: The Gathering-Commander |
| 171 | Kodama's Reach | John Avon | Green | C | Ultimate Masters |
| 180 | Kodama's Reach | John Avon | Green | C | Ikoria Commander |
| 188 | Kodama's Reach | Heather Hudson | Green | C | Commander 2015 |
| 196 | Kodama's Reach | Heather Hudson | Green | C | Outlaws of Thunder Junction Commander |
| 197 | Kodama's Reach | John Avon | Green | C | Commander 2021 |
| 225 | Kodama's Reach | Heather Hudson | Green | C | Champions of Kamigawa |
| 245 | Kodama's Reach | Heather Hudson | Green | C | The Lost Caverns of Ixalan Commander |
| 298 | Kodama's Reach | John Avon | Green | C | Streets of New Capenna Commander |
| 300 | Kodama's Reach | John Avon | Green | C | Commander Masters |
| 306 | Kodama's Reach | John Avon | Green | C | March of the Machine Commander |
| 429 | Kodama's Reach | John Avon | Green | C | Commander Legends |
| 649 | Kodama's Reach | Ron Spencer | Green | C | Commander Masters |
| 681 | Kodama's Reach | John Avon | Green | C | Commander Legends |
| 826 | Kodama's Reach | Sam Burley | Green | C | Commander Legends: Battle for Baldur's Gate |
| 244 | Kogla and Yidaro | Chris Rahn | Red/Green | R | March of the Machine |
| 311 | Kogla and Yidaro | Daniel Warren Johnson | Red/Green | R | March of the Machine |
| 162 | Kogla, the Titan Ape | Chris Rahn | Green | R | Ikoria: Lair of Behemoths |
| 55 | Koilos Roc | Antonio José Manzanedo | Blue | C | The Brothers' War |
| 9 | Kokusho, the Evening Star | Tsutomu Kawade | Black | R | From the Vault: Dragons |
| 89 | Kokusho, the Evening Star | Tsutomu Kawade | Black | M | Modern Masters |
| 95 | Kokusho, the Evening Star | Slawomir Maniak | Black | R | Iconic Masters |
| 122 | Kokusho, the Evening Star | Tsutomu Kawade | Black | R | Champions of Kamigawa |
| 143 | Kolaghan Aspirant | Aaron Miller | Red | C | Dragons of Tarkir |
| 144 | Kolaghan Forerunners | Jason A. Engle | Red | U | Dragons of Tarkir |
| 217 | Kolaghan Monument | Daniel Ljunggren | | U | Iconic Masters |
| 241 | Kolaghan Monument | Daniel Ljunggren | | U | Dragons of Tarkir |
| 107 | Kolaghan Skirmisher | Anthony Palumbo | Black | C | Dragons of Tarkir |
| 145 | Kolaghan Stormsinger | Scott Murphy | Red | C | Dragons of Tarkir |
| 17 | Kolaghan Warmonger | Andrew Mar | Red | U | March of the Machine: The Aftermath |
| 67 | Kolaghan Warmonger | Domenico Cava | Red | U | March of the Machine: The Aftermath |
| 117 | Kolaghan Warmonger | Andrew Mar | Red | U | March of the Machine: The Aftermath |
| 201 | Kolaghan Warmonger | Domenico Cava | Red | U | March of the Machine: The Aftermath |
| 155 | Kolaghan, the Storm's Fury | Jaime Jones | Black/Red | R | Fate Reforged |
| 176 | Kolaghan, the Storm's Fury | Jaime Jones | Black/Red | R | Commander 2017 |
| 21 | Kolaghan's Command | Daarken | Black/Red | R | Historic Anthology 5 |
| 224 | Kolaghan's Command | Daarken | Black/Red | R | Dragons of Tarkir |
| 239 | Kolaghan's Command | Daarken | Black/Red | R | Double Masters 2022 |
| 268 | Kolaghan's Command | Daarken | Black/Red | R | Modern Horizons 3 Commander |
| 381 | Kolaghan's Command | Alex Horley-Orlandelli | Black/Red | R | Double Masters 2022 |
| 515 | Kolaghan's Command | Daarken | Black/Red | R | Double Masters 2022 |
| 220 | Koll, the Forgemaster | Bram Sels | White/Red | U | Kaldheim |
| 325 | Koll, the Forgemaster | Nico Delort | White/Red | U | Kaldheim |
| 181 | Kolvori, God of Kinship | Grzegorz Rutkowski | Green | R | Kaldheim |
| 318 | Kolvori, God of Kinship | Dibujante Nocturno | Green | R | Kaldheim |
| 213 | Koma, Cosmos Serpent | Jesper Ejsing | Blue/Green | M | Murders at Karlov Manor Commander |
| 221 | Koma, Cosmos Serpent | Jesper Ejsing | Blue/Green | M | Kaldheim |
| 326 | Koma, Cosmos Serpent | rishxxv | Blue/Green | M | Kaldheim |
| 121 | Koma, World-Eater | Mark Zug | Blue/Green | R | Magic: The Gathering Foundations |
| 347 | Koma, World-Eater | Néstor Ossandón Leal | Blue/Green | R | Magic: The Gathering Foundations |
| 408 | Koma, World-Eater | Néstor Ossandón Leal | Blue/Green | R | Magic: The Gathering Foundations |
| 480 | Koma, World-Eater | Mark Zug | Blue/Green | R | Magic: The Gathering Foundations |
| 21 | Komainu Battle Armor | Nestor Ossandon Leal | Red | R | Kamigawa: Neon Dynasty Commander |
| 60 | Komainu Battle Armor | Nestor Ossandon Leal | Red | R | Kamigawa: Neon Dynasty Commander |
| 102 | Koma's Faithful | Caroline Gariba | Black | C | Kaldheim |
| 187 | Kona, Rescue Beastie | Brian Valeza | Green | R | Duskmourn: House of Horror |
| 299 | Kona, Rescue Beastie | Brian Valeza | Green | R | Duskmourn: House of Horror |
| 358 | Kona, Rescue Beastie | Sam Wolfe Connelly | Green | R | Duskmourn: House of Horror |
| 30 | Konda, Lord of Eiganjo | John Bolton | White | R | Champions of Kamigawa |
| 259 | Konda's Banner | Donato Giancola | | R | Champions of Kamigawa |
| 31 | Konda's Hatamoto | Lars Grant-West | White | U | Champions of Kamigawa |
| 9 | Kongming, "Sleeping Dragon" | Gao Yan | White | R | Portal Three Kingdoms |
| 16 | Kongming, "Sleeping Dragon" | Gao Yan | White | R | Commander 2013 Edition |
| 16 | Kongming, "Sleeping Dragon" | Gao Yan | White | R | Masters Edition III |
| 20 | Kongming, "Sleeping Dragon" | Gao Yan | White | U | Masters 25 |
| 33 | Kongming, "Sleeping Dragon" | Gao Yan | White | R | Vintage Masters |
| 10 | Kongming's Contraptions | Jiaming | White | R | Portal Three Kingdoms |
| Kookus | Scott Hampton | Red | R | Visions |
| 61 | Kopala, Warden of Waves | Magali Villeneuve | Blue | R | Ixalan |
| 160 | Kopala, Warden of Waves | Magali Villeneuve | Blue | R | The Lost Caverns of Ixalan Commander |
| 10 | Kor Aeronaut | Karl Kopinski | White | U | Duel Decks: Elspeth vs. Tezzeret |
| 17 | Kor Aeronaut | Karl Kopinski | White | U | Zendikar |
| 21 | Kor Blademaster | Darren Tan | White | U | Zendikar Rising |
| 34 | Kor Bladewhirl | Steven Belledin | White | U | Battle for Zendikar |
| 13 | Kor Cartographer | Ryan Pancoast | White | C | Duel Decks: Venser vs. Koth |
| 18 | Kor Cartographer | Ryan Pancoast | White | C | Zendikar Rising Commander |
| 18 | Kor Cartographer | Ryan Pancoast | White | C | Zendikar |
| 28 | Kor Cartographer | Ryan Pancoast | White | C | Kaldheim Commander |
| 30 | Kor Cartographer | Ryan Pancoast | White | C | Commander Legends |
| 377 | Kor Cartographer | Ryan Pancoast | White | C | Commander Legends |
| 35 | Kor Castigator | Greg Opalinski | White | C | Battle for Zendikar |
| 22 | Kor Celebrant | Jake Murray | White | C | Zendikar Rising |
| 9 | Kor Chant | John Matson | White | C | Exodus |
| 17 | Kor Chant | John Matson | White | U | Tempest Remastered |
| 73 | Kor Chant | Yohann Schepacz | White | C | Magic: The Gathering—Conspiracy |
| 87 | Kor Dirge | Alex Horley-Orlandelli | Black | U | Planar Chaos |
| 120 | Kor Dirge | Alex Horley-Orlandelli | Black | U | Time Spiral Remastered |
| 13 | Kor Duelist | Izzy | White | U | Game Night: Free-For-All |
| 19 | Kor Duelist | Izzy | White | U | Zendikar |
| 22 | Kor Duelist | Izzy | White | U | Modern Masters 2015 Edition |
| 36 | Kor Entanglers | Jason Rainville | White | U | Battle for Zendikar |
| 11 | Kor Firewalker | Matt Stewart | White | U | Worldwake |
| 21 | Kor Firewalker | Matt Stewart | White | U | Masters 25 |
| 27 | Kor Halberd | Bastien L. Deharme | White | C | March of the Machine |
| 41 | Kor Haven | Jonas De Ro | | M | Zendikar Expeditions |
| 141 | Kor Haven | Darrell Riche | | R | Nemesis |
| 368 | Kor Haven | Erikas Perl | | M | The Lord of the Rings: Tales of Middle Earth Commander |
| 10 | Kor Hookmaster | Wayne Reynolds | White | C | Modern Masters 2017 Edition |
| 12 | Kor Hookmaster | Wayne Reynolds | White | C | Duel Decks: Elspeth vs. Tezzeret |
| 18 | Kor Hookmaster | Wayne Reynolds | White | C | Eternal Masters |
| 20 | Kor Hookmaster | Wayne Reynolds | White | C | Zendikar |
| 52 | Kor Hookmaster | Wayne Reynolds | White | C | Duel Decks: Speed vs. Cunning |
| 30 | Kor Line-Slinger | Steve Prescott | White | C | Rise of the Eldrazi |
| 14 | Kor Outfitter | Kieran Yanner | White | C | Game Night: Free-For-All |
| 21 | Kor Outfitter | Kieran Yanner | White | C | Zendikar |