| Klothys, God of DestinyTheros Beyond Death · 268 | Theros Beyond Death | 268 | Mythic Rare | $2.26 |
| Klothys, God of DestinyMagic Online Promos · 79861 | Magic Online Promos | 79861 | Mythic Rare | — |
| Klothys's DesignTheros Beyond Death · 176 | Theros Beyond Death | 176 | Uncommon | €0.11 |
| Knacksaw CliqueShadowmoor · 42 | Shadowmoor | 42 | Rare | €3.84 |
| Kneel Before My LegionsDuskmourn: House of Horror Commander · 339 | Duskmourn: House of Horror Commander | 339 | Common | $0.32 |
| Knickknack OupheWilds of Eldraine Commander · 18 | Wilds of Eldraine Commander | 18 | Rare | €0.24 |
| Knickknack OupheWilds of Eldraine Commander · 54 | Wilds of Eldraine Commander | 54 | Rare | $0.27 |
| Knickknack Ouphe // Knickknack OupheWilds of Eldraine Art Series · 50 | Wilds of Eldraine Art Series | 50 | — | — |
| KnifeRavnica: Clue Edition · 10 | Ravnica: Clue Edition | 10 | Uncommon | €0.14 |
| KnifeMurders at Karlov Manor · 134 | Murders at Karlov Manor | 134 | Uncommon | €0.05 |
| Knife and DeathUnfinity · 77 | Unfinity | 77 | Rare | $0.11 |
| Knife and DeathUnfinity · 363 | Unfinity | 363 | Rare | €0.20 |
| KnightLeague Tokens 2012 · 2 | League Tokens 2012 | 2 | — | €1.45 |
| KnightMOM Japanese Promo Tokens · 3 | MOM Japanese Promo Tokens | 3 | — | €119.99 |
| KnightDouble Masters 2022 Tokens · 5 | Double Masters 2022 Tokens | 5 | — | — |
| KnightForgotten Realms Commander Tokens · 2 | Forgotten Realms Commander Tokens | 2 | — | — |
| KnightCommander 2015 Tokens · 4 | Commander 2015 Tokens | 4 | — | $0.26 |
| KnightCommander 2015 Tokens · 5 | Commander 2015 Tokens | 5 | — | $0.97 |
| KnightCommander Anthology Volume II Tokens · 4 | Commander Anthology Volume II Tokens | 4 | — | $0.36 |
| KnightCommander Anthology Tokens · 2 | Commander Anthology Tokens | 2 | — | €0.12 |
| KnightCommander Legends: Battle for Baldur's Gate Tokens · 2 | Commander Legends: Battle for Baldur's Gate Tokens | 2 | — | $0.95 |
| KnightCommander Masters Tokens · 7 | Commander Masters Tokens | 7 | — | — |
| KnightDominaria United Commander Tokens · 3 | Dominaria United Commander Tokens | 3 | — | $0.21 |
| KnightDominaria Tokens · 1 | Dominaria Tokens | 1 | — | $0.06 |
| KnightDominaria Tokens · 2 | Dominaria Tokens | 2 | — | €0.19 |
| KnightDominaria United Tokens · 3 | Dominaria United Tokens | 3 | — | €0.10 |
| KnightThrone of Eldraine Tokens · 3 | Throne of Eldraine Tokens | 3 | — | €0.09 |
| KnightFinal Fantasy Tokens · 10 | Final Fantasy Tokens | 10 | — | — |
| KnightFoundations Tokens · 4 | Foundations Tokens | 4 | — | — |
| KnightCore Set 2019 Tokens · 4 | Core Set 2019 Tokens | 4 | — | €0.11 |
| KnightCore Set 2021 Tokens · 4 | Core Set 2021 Tokens | 4 | — | $0.28 |
| KnightMidnight Hunt Commander Tokens · 3 | Midnight Hunt Commander Tokens | 3 | — | — |
| KnightMarch of the Machine Commander Tokens · 7 | March of the Machine Commander Tokens | 7 | — | — |
| KnightMarch of the Machine Tokens · 10 | March of the Machine Tokens | 10 | — | €0.13 |
| KnightMagic Origins Tokens · 2 | Magic Origins Tokens | 2 | — | €0.10 |
| KnightReturn to Ravnica Tokens · 2 | Return to Ravnica Tokens | 2 | — | €0.06 |
| KnightTime Spiral Remastered Tokens · 5 | Time Spiral Remastered Tokens | 5 | — | $0.14 |
| KnightWilds of Eldraine Tokens · 3 | Wilds of Eldraine Tokens | 3 | — | $0.39 |
| Knight AllyBattle for Zendikar Tokens · 5 | Battle for Zendikar Tokens | 5 | — | €0.09 |
| Knight-Captain of EosShards of Alara · 17 | Shards of Alara | 17 | Rare | €1.07 |
| Knight-Captain of EosThe List Tokens · ALA-17 | The List Tokens | ALA-17 | Rare | €1.49 |
| Knighted MyrCommander Masters · 36 | Commander Masters | 36 | Common | €0.05 |
| Knighted MyrModern Horizons 2 · 17 | Modern Horizons 2 | 17 | Common | €0.05 |
| Knight ErrantSeventh Edition · 24 | Seventh Edition | 24 | Common | €0.06 |
| Knight ErrantSeventh Edition · 24★ | Seventh Edition | 24★ | Common | $0.13 |
| Knight ErrantPortal · 20 | Portal | 20 | Common | $0.17 |
| Knight ErrantStarter 2000 · 7 | Starter 2000 | 7 | Common | €0.03 |
| Knight ErrantStarter 1999 · 19 | Starter 1999 | 19 | Common | $0.09 |
| Knight-Errant of EosMarch of the Machine · 26 | March of the Machine | 26 | Rare | $0.35 |
| Knight-Errant of EosMarch of the Machine · 346 | March of the Machine | 346 | Rare | $0.45 |