| Knight of the Skyward EyeShards of Alara · 15 | Shards of Alara | 15 | Common | €0.06 |
| Knight of the Skyward EyeSalvat 2011 · 12 | Salvat 2011 | 12 | Common | €0.38 |
| Knight of the Skyward EyeThe List Tokens · A25-19 | The List Tokens | A25-19 | Common | €0.08 |
| Knight of the StampedeRivals of Ixalan · 138 | Rivals of Ixalan | 138 | Common | €0.24 |
| Knight of the TuskJumpstart · 114 | Jumpstart | 114 | Common | €0.07 |
| Knight of the TuskCore Set 2019 · 18 | Core Set 2019 | 18 | Common | €0.03 |
| Knight of the TuskThe List Tokens · M19-18 | The List Tokens | M19-18 | Common | €0.07 |
| Knight of the White OrchidShards of Alara · 16 | Shards of Alara | 16 | Rare | €2.02 |
| Knight of the White OrchidCommander 2020 · 93 | Commander 2020 | 93 | Rare | $2.75 |
| Knight of the White OrchidCommander 2021 · 95 | Commander 2021 | 95 | Rare | €1.20 |
| Knight of the White OrchidDuel Decks: Knights vs. Dragons · 6 | Duel Decks: Knights vs. Dragons | 6 | Rare | €2.14 |
| Knight of the White OrchidMidnight Hunt Commander · 88 | Midnight Hunt Commander | 88 | Rare | €0.98 |
| Knight of the White OrchidMarch of the Machine Commander · 193 | March of the Machine Commander | 193 | Rare | €2.55 |
| Knight of the White OrchidMagic Origins · 21 | Magic Origins | 21 | Rare | $1.43 |
| Knight of the White OrchidMagic Origins Promos · 21s | Magic Origins Promos | 21s | Rare | €2.12 |
| Knight of the White OrchidSecret Lair Drop Tokens · 1045 | Secret Lair Drop Tokens | 1045 | Rare | €9.48 |
| Knight of the White OrchidCrimson Vow Commander · 92 | Crimson Vow Commander | 92 | Rare | €0.84 |
| Knight of the White OrchidPioneer Masters · 21 | Pioneer Masters | 21 | Rare | — |
| Knight of the White OrchidSecret Lair Drop Tokens · 7139 | Secret Lair Drop Tokens | 7139 | Rare | $0.93 |
| Knight of the WidgetUnstable · 13 | Unstable | 13 | Uncommon | €0.09 |
| Knight of ValorVisions · 11 | Visions | 11 | Common | €0.05 |
| Knight of WundagoreMarvel Super Heroes · 175 | Marvel Super Heroes | 175 | Common | €0.06 |
| Knight PaladinWarhammer 40,000 Commander · 160 | Warhammer 40,000 Commander | 160 | Rare | $3.45 |
| Knight PaladinWarhammer 40,000 Commander · 160★ | Warhammer 40,000 Commander | 160★ | Rare | $9.81 |
| Knight RampagerWarhammer 40,000 Commander · 80 | Warhammer 40,000 Commander | 80 | Rare | €0.17 |
| Knight RampagerWarhammer 40,000 Commander · 80★ | Warhammer 40,000 Commander | 80★ | Rare | $0.65 |
| KnightsJumpstart 2022 Front Cards · 5 | Jumpstart 2022 Front Cards | 5 | — | — |
| Knights' ChargeThrone of Eldraine · 328 | Throne of Eldraine | 328 | Rare | $0.64 |
| Knights' ChargeMarch of the Machine Commander · 333 | March of the Machine Commander | 333 | Rare | €0.60 |
| Knights of Dol AmrothThe Lord of the Rings: Tales of Middle-earth · 59 | The Lord of the Rings: Tales of Middle-earth | 59 | Common | €0.05 |
| Knights of Dol AmrothThe Lord of the Rings: Tales of Middle-earth · 432 | The Lord of the Rings: Tales of Middle-earth | 432 | Common | €0.09 |
| Knights of Dol AmrothThe Lord of the Rings: Tales of Middle-earth · 510 | The Lord of the Rings: Tales of Middle-earth | 510 | Common | €0.22 |
| Knights of Dol AmrothThe Hobbit Eternal · 178 | The Hobbit Eternal | 178 | Common | €0.48 |
| Knights of the Black RoseConspiracy: Take the Crown · 76 | Conspiracy: Take the Crown | 76 | Uncommon | €0.29 |
| Knights of the Black RoseMarch of the Machine Commander · 332 | March of the Machine Commander | 332 | Uncommon | €0.17 |
| Knights of the Black RoseThe List Tokens · MOC-332 | The List Tokens | MOC-332 | Uncommon | — |
| Knights of ThornThe Dark · 11 | The Dark | 11 | Rare | €6.30 |
| Knights of ThornMasters Edition · 19 | Masters Edition | 19 | Common | — |
| Knight's PledgeCore Set 2019 · 19 | Core Set 2019 | 19 | Common | €0.12 |
| Knight's PledgeArena Beginner Set · 12 | Arena Beginner Set | 12 | Common | — |
| Knight's PledgeArena New Player Experience Cards · 5 | Arena New Player Experience Cards | 5 | Common | — |
| Knight WatchGatecrash · 19 | Gatecrash | 19 | Common | €0.07 |
| Knockout BlowStreets of New Capenna · 20 | Streets of New Capenna | 20 | Uncommon | €0.20 |
| Knockout ManeuverSecrets of Strixhaven Mystical Archive · 54 | Secrets of Strixhaven Mystical Archive | 54 | Uncommon | €0.08 |
| Knockout ManeuverSecrets of Strixhaven Mystical Archive · 119 | Secrets of Strixhaven Mystical Archive | 119 | Uncommon | €0.23 |
| Knockout ManeuverSecrets of Strixhaven Mystical Archive · 184 | Secrets of Strixhaven Mystical Archive | 184 | Uncommon | €2.75 |
| Knockout ManeuverTarkir: Dragonstorm · 147 | Tarkir: Dragonstorm | 147 | Uncommon | €0.05 |
| Knollspine DragonGame Night: Free-for-All · 82 | Game Night: Free-for-All | 82 | Rare | €0.32 |
| Knollspine DragonTales of Middle-earth Commander · 224 | Tales of Middle-earth Commander | 224 | Rare | €0.10 |
| Knollspine DragonThe List Tokens · SHM-98 | The List Tokens | SHM-98 | Rare | $0.39 |