| 22 | Keen-Eared Sentry | Viko Menezes | White | U | Adventures in the Forgotten Realms |
| Keen-Eyed Archers | Alan Rabinowitz | White | C | Portal |
| 31 | Keening Banshee | Robert Bliss | Black | U | Guild Kit: Orzhov |
| 44 | Keening Banshee | Robert Bliss | Black | U | Duel Decks Anthology, Garruk vs. Liliana |
| 44 | Keening Banshee | Robert Bliss | Black | U | Duel Decks: Garruk vs. Liliana |
| 92 | Keening Banshee | Robert Bliss | Black | U | Ravnica: City of Guilds |
| 26 | Keening Stone | Jung Park | | R | The Brothers' War Retro Artifacts |
| 89 | Keening Stone | Warren Mahy | | R | The Brothers' War Retro Artifacts |
| 219 | Keening Stone | Jung Park | | R | Rise of the Eldrazi |
| 259 | Keening Stone | Jung Park | | R | Commander 2016 |
| 18 | Keensight Mentor | Yongjae Choi | White | U | Ikoria: Lair of Behemoths |
| 56 | Keep Safe | Ekaterina Burmak | Blue | C | Ikoria: Lair of Behemoths |
| 71 | Keeper of Fables | Alex Konstad | Green | U | Zendikar Rising Commander |
| 163 | Keeper of Fables | Alex Konstad | Green | U | Throne of Eldraine |
| 407 | Keeper of Fables | Alex Konstad | Green | U | Jumpstart |
| 34 | Keeper of Keys | Bastien L. Deharme | Blue | R | Conspiracy: Take the Crown |
| Keeper of Kookus | Scott Hampton | Red | C | Visions |
| 135 | Keeper of Progenitus | Kev Walker | Green | R | Shards of Alara |
| 78 | Keeper of Secrets | Miguel Sacristan | Red | R | Warhammer 40,000 Commander |
| 112 | Keeper of the Beasts | rk post | Green | U | Exodus |
| 577 | Keeper of the Crown (adventurer)(playtest) | Elliot Stevens | | R | Mystery Booster 2: Convention Edition |
| 240 | Keeper of the Lens | Ryan Barger | | C | Dragons of Tarkir |
| 42 | Keeper of the Nine Gales | Jim Nelson | Blue | R | Legions |
| 101 | Keeper of the Sacred Word | Dany Orizio | Green | C | Unhinged |
| Keeper of Tresserhorn | Z. Plucinski & D.A. Gregory | Black | R | Alliances |
| Keepers of the Faith | Daniel Gelon | White | C | Chronicles |
| Keepers of the Faith | Daniel Gelon | White | C | Legends |
| 93 | Keepsake Gorgon | Aaron Miller | Black | U | Theros |
| 141 | Keepsake Gorgon | Aaron Miller | Black | U | Conspiracy: Take the Crown |
| 39 | Kefnet's Last Word | Clint Cearley | Blue | R | Hour of Devastation |
| 231 | Kefnet's Monument | Titus Lunter | | U | Amonkhet |
| 275 | Kefnet's Monument | Titus Lunter | | U | Amonkhet Remastered |
| Kei Takahashi | Scott Kirschner | White/Green | U | Chronicles |
| Kei Takahashi | Scott Kirschner | White/Green | R | Legends |
| 155 | Kei Takahashi | Scott Kirschner | White/Green | U | Masters Edition III |
| 48 | Keiga, the Tide Star | Ittoku | Blue | M | Modern Masters |
| 63 | Keiga, the Tide Star | Svetlin Velinov | Blue | R | Iconic Masters |
| 72 | Keiga, the Tide Star | Ittoku | Blue | R | Champions of Kamigawa |
| 725 | Keiga, the Tide Star | Svetlin Velinov | Blue | R | Commander Legends: Battle for Baldur's Gate |
| 92 | Keldon Arsonist | Paolo Parente | Red | U | Prophecy |
| 93 | Keldon Berserker | Paolo Parente | Red | C | Prophecy |
| 94 | Keldon Firebombers | Randy Gallegos | Red | R | Prophecy |
| 135 | Keldon Flamesage | Jason A. Engle | Red | R | Dominaria United |
| 407 | Keldon Flamesage | Jason A. Engle | Red | R | Dominaria United |
| 7 | Keldon Marauders | Alex Horley-Orlandelli | Red | C | Premium Deck Series: Fire and Lightning |
| 102 | Keldon Marauders | Alex Horley-Orlandelli | Red | C | Planar Chaos |
| 136 | Keldon Marauders | Alex Horley-Orlandelli | Red | C | Eternal Masters |
| 58 | Keldon Megaliths | Philip Straub | | U | Duel Decks Anthology, Jace vs. Chandra |
| 58 | Keldon Megaliths | Philip Straub | | U | Duel Decks: Jace vs. Chandra |
| 170 | Keldon Megaliths | Philip Straub | | U | Future Sight |
| 300 | Keldon Necropolis | Franz Vohwinkel | | R | Vintage Masters |
| 325 | Keldon Necropolis | Franz Vohwinkel | | R | Invasion |
| 134 | Keldon Overseer | Jason A. Engle | Red | C | Dominaria |
| 136 | Keldon Strike Team | Josu Hernaiz | Red | C | Dominaria United |
| 91 | Keldon Vandals | Greg Staples | Red | C | Urza's Destiny |
| 28 | Keleth, Sunmane Familiar | Jesper Ejsing | White | U | Commander Legends |
| 33 | Keleth, Sunmane Familiar | Jesper Ejsing | White | U | Commander Masters |
| 550 | Keleth, Sunmane Familiar | Jesper Ejsing | White | U | Commander Legends |
| 212 | Kellan Joins Up | Wylie Beckert | White/Blue/Green | R | Outlaws of Thunder Junction |
| 354 | Kellan Joins Up | Wylie Beckert | White/Blue/Green | R | Outlaws of Thunder Junction |
| 212 | Kellan, Inquisitive Prodigy | Joshua Raphael | Blue/Green | R | Murders at Karlov Manor |
| 334 | Kellan, Inquisitive Prodigy | David Robert Hovey | Blue/Green | R | Murders at Karlov Manor |
| 18 | Kellan's Lightblades | Fajareka Setiawan | White | C | Wilds of Eldraine |
| 106 | Kellogg, Dangerous Mind | Josh Hass | Black/Red | R | Magic The Gathering—Fallout |
| 415 | Kellogg, Dangerous Mind | Josh Hass | Black/Red | R | Magic The Gathering—Fallout |
| 15 | Kels, Fight Fixer | Magali Villeneuve | Black | R | Jumpstart |
| 11 | Kelsien, the Plague | Chris Rallis | White/Black/Red | M | Ikoria Commander |
| Kelsinko Ranger | Mark Poole | White | C | Ice Age |
| 7 | Kemba's Banner | Wisnu Tan | White | R | Phyrexia: All Will Be One Commander |
| 45 | Kemba's Banner | Wisnu Tan | White | R | Phyrexia: All Will Be One Commander |
| 9 | Kemba's Legion | Anthony Francisco | White | U | Mirrodin Besieged |
| 13 | Kemba's Skyguard | Whit Brachna | White | C | Scars of Mirrodin |
| 13 | Kemba's Skyguard | Whit Brachna | White | C | Duel Decks: Elspeth vs. Tezzeret |
| 13 | Kenessos, Priest of Thassa | Joshua Raphael | Blue | R | Jumpstart 2022 |
| 128 | Kenrith's Transformation | Kimonas Theodossiou | Green | U | Wilds of Eldraine Commander |
| 162 | Kenrith's Transformation | Kimonas Theodossiou | Green | U | Adventures in the Forgotten Realms Commander |
| 164 | Kenrith's Transformation | Kimonas Theodossiou | Green | U | Throne of Eldraine |
| 13 | Kentaro, the Smiling Cat | Donato Giancola | White | R | Betrayers of Kamigawa |
| 2 | Kenzo the Hardhearted | Mark Zug | White | U | Champions of Kamigawa |
| 334 | Keral Keep Disciples | Leesha Hannigan | Red | U | Core Set 2021 |
| 79 | Keranos, God of Storms | Jason A. Engle | Blue/Red | M | Secret Lair Drop |
| 151 | Keranos, God of Storms | Daarken | Blue/Red | M | Journey into Nyx |
| 48 | Keruga, the Macrosage | Denis Medri | Blue/Green | R | March of the Machine Multiverse Legends |
| 84 | Keruga, the Macrosage | Dan Murayama Scott | Blue/Green | R | Mystery Booster 2: Convention Edition |
| 225 | Keruga, the Macrosage | Dan Scott | Blue/Green | R | Ikoria: Lair of Behemoths |
| 131 | Keskit, the Flesh Sculptor | Yongjae Choi | Black | U | Commander Legends |
| 254 | Keskit, the Flesh Sculptor | Yongjae Choi | Black | U | March of the Machine Commander |
| 565 | Keskit, the Flesh Sculptor | Yongjae Choi | Black | U | Commander Legends |
| 39 | Kess, Dissident Mage | Izzy | Blue/Black/Red | M | Commander 2017 |
| 206 | Kess, Dissident Mage | Izzy | Blue/Black/Red | M | Modern Horizons |
| 344 | Kess, Dissident Mage | Izzy | Blue/Black/Red | M | Streets of New Capenna Commander |
| 122 | Kessig Cagebreakers | Wayne England | Green | R | Commander Anthology |
| 142 | Kessig Cagebreakers | Wayne England | Green | R | Innistrad: Midnight Hunt Commander |
| 187 | Kessig Cagebreakers | Wayne England | Green | R | Commander 2015 |
| 189 | Kessig Cagebreakers | Wayne England | Green | R | Innistrad |
| 681 | Kessig Cagebreakers | Wayne England | Green | R | Jumpstart 2022 |
| 214 | Kessig Dire Swine | Jason Kang | Green | C | Shadows over Innistrad |
| 164 | Kessig Flamebreather | Lius Lasahido | Red | C | Innistrad: Crimson Vow |
| 169 | Kessig Forgemaster | Winona Nelson | Red | U | Shadows over Innistrad |
| 142 | Kessig Malcontents | John Stanko | Red | U | Avacyn Restored |
| 231 | Kessig Naturalist | Johan Grenier | Red/Green | U | Innistrad: Midnight Hunt |
| 163 | Kessig Prowler | Slawomir Maniak | Green | U | Eldritch Moon |
| 121 | Kessig Recluse | Vincent Proce | Green | C | Dark Ascension |
| 151 | Kessig Wolf | Wayne England | Red | C | Innistrad |
| 20 | Kessig Wolf Run | Eytan Zana | | M | From the Vault: Twenty |
| 243 | Kessig Wolf Run | Eytan Zana | | R | Innistrad |
| 269 | Kessig Wolf Run | Eytan Zana | | R | Murders at Karlov Manor Commander |
| 284 | Kessig Wolf Run | Eytan Zana | | R | Ikoria Commander |
| 340 | Kessig Wolf Run | Eytan Zana | | R | The Lost Caverns of Ixalan Commander |
| 352 | Kessig Wolf Run | Eytan Zana | | R | Modern Horizons 3 Commander |
| 410 | Kessig Wolf Run | Eytan Zana | | R | March of the Machine Commander |
| 411 | Kessig Wolf Run | Eytan Zana | | R | Streets of New Capenna Commander |
| 898 | Kessig Wolf Run | Eytan Zana | | R | Commander Legends: Battle for Baldur's Gate |
| 165 | Kessig Wolfrider | Bram Sels | Red | R | Innistrad: Crimson Vow |
| 379 | Kessig Wolfrider | Bram Sels | Red | R | Innistrad: Crimson Vow |
| 42 | Kestia, the Cultivator | Zezhou Chen | White/Blue/Green | M | Commander 2018 |
| 211 | Kethis, the Hidden Hand | Yongjae Choi | White/Black/Green | M | Core Set 2020 |
| 236 | Ketria Crystal | Yeong-Hao Han | | U | Ikoria: Lair of Behemoths |
| 39 | Keymaster Rogue | Winona Nelson | Blue | C | Gatecrash |
| 47 | Keymaster Rogue | Winona Nelson | Blue | C | Ravnica Remastered |
| 251 | Keys to the House | Artur Treffner | | U | Duskmourn: House of Horror |
| 192 | Khalni Ambush | Grzegorz Rutkowski | Green | U | Zendikar Rising |
| 100 | Khenra Scrapper | Jesper Ejsing | Red | C | Hour of Devastation |
| 163 | Khenra Scrapper | Jesper Ejsing | Red | C | Amonkhet Remastered |
| 151 | Khenra Spellspear | Artur Nakhodkin | Red | U | March of the Machine |
| 75 | Kheru Bloodsucker | Daniel Ljunggren | Black | U | Khans of Tarkir |
| 45 | Kheru Spellsnatcher | Clint Cearley | Blue | R | Khans of Tarkir |
| 89 | Kheru Spellsnatcher | Clint Cearley | Blue | R | Commander 2019 |
| 119 | Kheru Spellsnatcher | Clint Cearley | Blue | R | Duskmourn: House of Horror Commander |
| 24 | Khod, Etlan Shiis Envoy (playtest) | Dave Humpherys | Blue | C | Mystery Booster |
| 59 | Khorvath's Fury | Mark Behm | Red | R | Battlebond |
| 152 | Kianne, Dean of Substance | Ryan Pancoast | Green | R | Strixhaven: School of Mages |
| 326 | Kianne, Dean of Substance | Ryan Pancoast | Green | R | Strixhaven: School of Mages |
| 219 | Kiddie Coaster (a) | Marco Bucci | | C | Unfinity |
| 219 | Kiddie Coaster (b) | Marco Bucci | | C | Unfinity |
| 219 | Kiddie Coaster (c) | Marco Bucci | | C | Unfinity |
| 219 | Kiddie Coaster (d) | Marco Bucci | | C | Unfinity |
| 219 | Kiddie Coaster (e) | Marco Bucci | | C | Unfinity |
| 219 | Kiddie Coaster (f) | Marco Bucci | | C | Unfinity |
| 121 | Kiku, Night's Flower | Jim Murray | Black | R | Champions of Kamigawa |
| 77 | Kiku's Shadow | Pete Venters | Black | U | Saviors of Kamigawa |
| 15 | Kill Shot | Michael C. Hayes | White | C | Khans of Tarkir |
| 19 | Kill Shot | Josh Hass | White | C | Streets of New Capenna |
| 94 | Kill Shot | Michael C. Hayes | White | C | Conspiracy: Take the Crown |
| 133 | Kill Switch | Brian Snoddy | | R | Nemesis |
| 58 | Kill! Destroy! | Corey D. Macourek | Black | U | Unhinged |
| Killer Bees | Phil Foglio | Green | U | Fifth Edition |
| Killer Bees | Phil Foglio | Green | U | Fourth Edition |
| Killer Bees | Phil Foglio | Green | R | Legends |
| 126 | Killer Bees | Phil Foglio | Green | U | Masters Edition III |
| 145 | Killer Cosplay | Leonardo Santanna | Green | M | Unfinity (Acorn) |
| 120 | Killer Instinct | Christopher Moeller | Red/Green | R | Guildpact |
| 61 | Killer Service | Simon Dominic | Green | R | Streets of New Capenna Commander |
| 161 | Killer Service | Simon Dominic | Green | R | Streets of New Capenna Commander |
| 174 | Killer Service | Simon Dominic | Green | R | Murders at Karlov Manor Commander |
| 104 | Killer's Mask | Wero Gallo | Black | U | Duskmourn: House of Horror |
| 197 | Killian, Ink Duelist | Ryan Pancoast | White/Black | U | Strixhaven: School of Mages |
| 65 | Kill-Suit Cultist | Alex Horley-Orlandelli | Red | C | Dissension |
| 138 | Kindled Heroism | Leanna Crossan | Red | C | Wilds of Eldraine |
| 142 | Kindlespark Duo | Daren Bader | Red | C | Bloomburrow |
| 22 | Kindly Ancestor | Justyna Gil | White | C | Innistrad: Crimson Vow |
| 107 | Kindly Stranger | Ryan Pancoast | Black | U | Shadows Over Innistrad Remastered |
| 119 | Kindly Stranger | Ryan Pancoast | Black | U | Shadows over Innistrad |
| 11 | Kindred Discovery | Lake Hurwitz | Blue | R | Commander 2017 |
| 22 | Kindred Discovery | Serena Malyon | Blue | M | Wilds of Eldraine Enchanting Tales |
| 69 | Kindred Discovery | 結暉ゆち/Yuchi Yuki | Blue | M | Wilds of Eldraine Enchanting Tales |
| 81 | Kindred Discovery | Vincent Christiaens | Blue | R | Commander Legends: Battle for Baldur's Gate |
| 126 | Kindred Discovery | Vincent Christiaens | Blue | R | Alchemy Horizons: Baldur's Gate |
| 159 | Kindred Discovery | Lake Hurwitz | Blue | R | The Lost Caverns of Ixalan Commander |
| 565 | Kindred Discovery | Vincent Christiaens | Blue | R | Commander Legends: Battle for Baldur's Gate |