| Karona, False God (2 variants) | 1624 |
| Karn's Bastion (2 variants) | 1751 |
| Karn, the Great Creator | 501 |
| Karn, the Great Creator | 253 |
| Karn, Scion of Urza | 1419★ |
| Karn, Scion of Urza | 1419 |
| Karmic Guide (2 variants) | 1911 |
| Karmic Guide (2 variants) | 281 |
| Karlach, Fury of Avernus (2 variants) | 1802 |
| Kardur, Doomscourge // Kardur, Doomscourge (2 variants) | 1807 |
| Karazikar, the Eye Tyrant (2 variants) | 1791 |
| Karametra, God of Harvests | 69 |
| Karador, Ghost Chieftain | 1646 |
| Karador, Ghost Chieftain | 1646★ |
| Kami of the Crescent Moon (2 variants) | 260 |
| Kalitas, Traitor of Ghet (2 variants) | 1687 |
| Kalamax, the Stormsire (4 variants) | 2252 |
| Kaalia of the Vast (2 variants) | 1563 |
| K'rrik, Son of Yawgmoth (2 variants) | 1186 |
| Joraga Treespeaker (2 variants) | 1281 |
| Joel, Resolute Survivor (2 variants) | 2198 |
| Jodah, the Unifier (2 variants) | 1932 |
| Jinnie Fay, Jetmir's Second // Jinnie Fay, Jetmir's Second | 1556 |
| Jinnie Fay, Jetmir's Second // Jinnie Fay, Jetmir's Second | 1510 |
| Jin Sakai, Ghost of Tsushima (2 variants) | 2226 |
| Jiang Yanggu, Wildcrafter | 517 |
| Jhoira, Weatherlight Captain | 1276 |
| Jetmir, Nexus of Revels // Jetmir, Nexus of Revels | 1509 |
| Jetmir, Nexus of Revels // Jetmir, Nexus of Revels | 1555 |
| Jet Medallion (2 variants) | 1189 |
| Jeska's Will (2 variants) | 1744 |
| Jeska, Thrice Reborn (2 variants) | 1201 |
| Jaya's Immolating Inferno (2 variants) | 1063 |
| Jaya, Venerated Firemage | 513 |
| Jaya Ballard (2 variants) | 1062 |
| Jaxis, the Troublemaker (2 variants) | 1703 |
| Jaws, Relentless Predator (2 variants) | 2175 |
| Jaspera Sentinel | 770 |
| Jace's Archivist (2 variants) | 2515 |
| Jace, Wielder of Mysteries | 506 |
| Jace, Wielder of Mysteries | 1576 |
| Jace, Wielder of Mysteries | 1576★ |
| Jace, Unraveler of Secrets (4 variants) | 1590 |
| Jace, the Mind Sculptor (2 variants) | 8001 |
| Jace Beleren // Jace Beleren | 746 |
| Jace Beleren // Jace Beleren (2 variants) | 1454 |
| Izzet Signet (2 variants) | 293 |
| Iymrith, Desert Doom | 1013 |
| Ivy Lane Denizen | 769 |
| It That Betrays (2 variants) | 1176 |