| Kiddie CoasterUnfinity · 219c | Unfinity | 219c | Common | $0.13 |
| Kiddie CoasterUnfinity · 219d | Unfinity | 219d | Common | €0.13 |
| Kiddie CoasterUnfinity · 219e | Unfinity | 219e | Common | €0.14 |
| Kiddie CoasterUnfinity · 219f | Unfinity | 219f | Common | €0.18 |
| Kid LokiMarvel Super Heroes · 63 | Marvel Super Heroes | 63 | Uncommon | €0.15 |
| Kiki-Jiki, Mirror BreakerChampions of Kamigawa · 175 | Champions of Kamigawa | 175 | Rare | €7.58 |
| Kiki-Jiki, Mirror BreakerIconic Masters · 136 | Iconic Masters | 136 | Mythic Rare | €7.91 |
| Kiki-Jiki, Mirror BreakerJumpstart 2022 · 79 | Jumpstart 2022 | 79 | Mythic Rare | €11.04 |
| Kiki-Jiki, Mirror BreakerModern Masters 2015 · 121 | Modern Masters 2015 | 121 | Mythic Rare | €7.97 |
| Kiki-Jiki, Mirror BreakerModern Masters · 120 | Modern Masters | 120 | Mythic Rare | €7.94 |
| Kiki-Jiki, Mirror BreakerThe List Tokens · CHK-175 | The List Tokens | CHK-175 | Rare | €8.87 |
| Kiki-Jiki, Mirror BreakerSecret Lair Drop Tokens · 1659 | Secret Lair Drop Tokens | 1659 | Mythic Rare | €8.85 |
| Kiki-Jiki, Mirror BreakerThe List Tokens · MM2-121 | The List Tokens | MM2-121 | Mythic Rare | $7.33 |
| Kiki-Jiki, Mirror BreakerTime Spiral Remastered · 346 | Time Spiral Remastered | 346 | Special | €8.01 |
| Kiki-Jiki, Mirror BreakerFrom the Vault: Legends · 4 | From the Vault: Legends | 4 | Mythic Rare | €8.40 |
| Kiku, Night's FlowerChampions of Kamigawa · 121 | Champions of Kamigawa | 121 | Rare | €1.57 |
| Kiku's ShadowSaviors of Kamigawa · 77 | Saviors of Kamigawa | 77 | Uncommon | €0.20 |
| Kíli the ResourcefulThe Hobbit · 17 | The Hobbit | 17 | Rare | €1.09 |
| Kíli the ResourcefulThe Hobbit · 287 | The Hobbit | 287 | Rare | $1.55 |
| Kill! Destroy!Unhinged · 58 | Unhinged | 58 | Uncommon | €0.25 |
| Killer BeesFourth Edition Foreign Black Border · 254 | Fourth Edition Foreign Black Border | 254 | Uncommon | €2.01 |
| Killer BeesFourth Edition · 254 | Fourth Edition | 254 | Uncommon | $0.34 |
| Killer BeesFifth Edition · 307 | Fifth Edition | 307 | Uncommon | $0.35 |
| Killer BeesLegends · 192 | Legends | 192 | Rare | €40.39 |
| Killer BeesRenaissance · 146 | Renaissance | 146 | Uncommon | €0.62 |
| Killer BeesMasters Edition III · 126 | Masters Edition III | 126 | Uncommon | — |
| Killer CosplayUnfinity · 145 | Unfinity | 145 | Mythic Rare | $0.21 |
| Killer CosplayUnfinity · 431 | Unfinity | 431 | Mythic Rare | $0.43 |
| Killer InstinctGuildpact · 120 | Guildpact | 120 | Rare | €0.21 |
| Killer ServiceMurders at Karlov Manor Commander · 174 | Murders at Karlov Manor Commander | 174 | Rare | €0.21 |
| Killer ServiceNew Capenna Commander · 61 | New Capenna Commander | 61 | Rare | €0.25 |
| Killer ServiceNew Capenna Commander · 161 | New Capenna Commander | 161 | Rare | €0.73 |
| Killer ServiceNew Capenna Commander Promos · 61p | New Capenna Commander Promos | 61p | Rare | €1.20 |
| Killer ServiceMagic Online Promos · 99845 | Magic Online Promos | 99845 | Rare | — |
| Killer Service // Killer ServiceNew Capenna Art Series · 62 | New Capenna Art Series | 62 | — | €0.06 |
| Killer's MaskDuskmourn: House of Horror · 104 | Duskmourn: House of Horror | 104 | Uncommon | €0.05 |
| Killer WhaleBeatdown Box Set · 11 | Beatdown Box Set | 11 | Uncommon | €0.10 |
| Killer WhaleExodus · 37 | Exodus | 37 | Uncommon | €0.15 |
| Killer WhaleThe List Tokens · EXO-37 | The List Tokens | EXO-37 | Uncommon | $0.08 |
| Killer WhaleTempest Remastered · 55 | Tempest Remastered | 55 | Uncommon | — |
| Killer WhaleVintage Masters · 76 | Vintage Masters | 76 | Common | — |
| Killian, Decisive MentorSecrets of Strixhaven Commander · 4 | Secrets of Strixhaven Commander | 4 | Mythic Rare | $0.42 |
| Killian, Ink DuelistSecrets of Strixhaven Commander · 317 | Secrets of Strixhaven Commander | 317 | Uncommon | €0.19 |
| Killian, Ink DuelistStrixhaven: School of Mages · 197 | Strixhaven: School of Mages | 197 | Uncommon | $0.27 |
| Killian, Ink Duelist // Killian, Ink DuelistStrixhaven Art Series · 30 | Strixhaven Art Series | 30 | — | — |
| Killian, Ink Duelist // Killian, Ink DuelistStrixhaven Art Series · 30s | Strixhaven Art Series | 30s | — | — |
| Killian's ConfidenceSecrets of Strixhaven · 197 | Secrets of Strixhaven | 197 | Uncommon | €0.10 |
| Killing GlareGatecrash · 70 | Gatecrash | 70 | Uncommon | €0.12 |
| Killing GlareFoundations Jumpstart · 120 | Foundations Jumpstart | 120 | Uncommon | €0.17 |
| Killing WaveAvacyn Restored · 111 | Avacyn Restored | 111 | Rare | $0.54 |