| Krosan Tusker | ONS-272 |
| Krosan Tusker | DDU-14 |
| Krosan Verge | ZNC-134 |
| Krosan Verge | C18-263 |
| Krosan Vorine | LGN-131 |
| Krovikan Sorcerer | VMA-77 |
| Krumar Bond-Kin | KTK-77 |
| Kruphix, God of Horizons | JOU-152 |
| Krydle of Baldur's Gate | AFR-343 |
| Kuldotha Rebirth | SOM-96 |
| Kulrath Knight | SHM-190 |
| Kwain, Itinerant Meddler | CMR-284 |
| Kynaios and Tiro of Meletis | C16-36 |
| Kyren Negotiations | MMQ-198 |
| Kytheon, Hero of Akros // Gideon, Battle-Forged | ORI-23 |
| Laboratory Brute | EMN-67 |
| Laboratory Maniac | UMA-61 |
| Laboratory Maniac | ISD-61 |
| Labyrinth Guardian | AKH-60 |
| Lagonna-Band Trailblazer | JOU-14 |
| Laid to Rest | VOW-207 |
| Lampad of Death's Vigil | THB-103 |
| Land Grant | MMQ-255 |
| Land Tax | BBD-94 |
| Lantern of Insight (2 variants) | 5DN-135 |
| Lapse of Certainty | CON-9 |
| Larger Than Life | KLD-160 |
| Lash of Malice | STX-74 |
| Lash Out | LRW-183 |
| Lashknife Barrier | PLS-9 |
| Lashweed Lurker | EMN-9 |
| Last Breath | MMQ-27 |
| Latchkey Faerie | MOR-39 |
| Late to Dinner | MH2-329 |
| Lathliss, Dragon Queen | GN2-41 |
| Lava Coil | GRN-108 |
| Lava Dart | JUD-94 |
| Lava Hounds | WTH-109 |
| Lavaborn Muse | DDK-50 |
| Lawless Broker | KLD-86 |
| Lawmage's Binding | RNA-190 |
| Lay Claim | AKH-61 |
| Lay of the Land | CN2-185 |
| Lazav, the Multifarious | GRN-184 |
| Lazotep Behemoth | WAR-95 |
| Lazotep Plating | WAR-59 |
| Lead by Example | BBD-205 |
| Lead the Stampede | DDU-16 |
| Leaf-Crowned Elder | MOR-128 |
| Leap | STH-35 |