| Kindred JudgmentReality Fracture Promos · 13p | Reality Fracture Promos | 13p | Rare | €0.68 |
| Kindred SummonsForgotten Realms Commander · 163 | Forgotten Realms Commander | 163 | Rare | $1.29 |
| Kindred SummonsCommander 2017 · 32 | Commander 2017 | 32 | Rare | $2.16 |
| Kindred SummonsLorwyn Eclipsed Commander · 112 | Lorwyn Eclipsed Commander | 112 | Rare | $0.94 |
| Kindred SummonsSecret Lair Drop Tokens · 1901 | Secret Lair Drop Tokens | 1901 | Rare | $6.18 |
| Kindred SummonsTreasure Chest · 65719 | Treasure Chest | 65719 | Rare | — |
| KindslaverThe List (Unfinity Foil Edition) · 58 | The List (Unfinity Foil Edition) | 58 | Rare | $0.20 |
| KindslaverUnstable · 150 | Unstable | 150 | Rare | €0.20 |
| Kinetic AugurCore Set 2021 · 154 | Core Set 2021 | 154 | Uncommon | €0.14 |
| Kinetic OozeSecrets of Strixhaven Commander · 39 | Secrets of Strixhaven Commander | 39 | Rare | €0.28 |
| Kinetic OozeSecrets of Strixhaven Commander · 87 | Secrets of Strixhaven Commander | 87 | Rare | €0.49 |
| King CheetahNinth Edition · 250 | Ninth Edition | 250 | Uncommon | €0.09 |
| King CheetahNinth Edition · 250★ | Ninth Edition | 250★ | Uncommon | $0.13 |
| King CheetahMultiverse Gift Box · 10 | Multiverse Gift Box | 10 | Rare | €11.67 |
| King CheetahVisions · 110 | Visions | 110 | Common | €0.03 |
| King CrabUrza's Legacy · 34 | Urza's Legacy | 34 | Uncommon | €0.27 |
| King Darien XLVIIIDominaria United · 204 | Dominaria United | 204 | Rare | €0.33 |
| King Darien XLVIIIDominaria United · 303 | Dominaria United | 303 | Rare | $0.29 |
| King Darien XLVIIIDominaria United · 344 | Dominaria United | 344 | Rare | €0.54 |
| King Darien XLVIIIDominaria United Promos · 204p | Dominaria United Promos | 204p | Rare | €0.40 |
| King Darien XLVIIIDominaria United Promos · 204s | Dominaria United Promos | 204s | Rare | €0.87 |
| KingfisherUrza's Destiny · 36 | Urza's Destiny | 36 | Common | €0.08 |
| King Harald's RevengeKaldheim · 180 | Kaldheim | 180 | Common | €0.05 |
| King Macar, the Gold-CursedJourney into Nyx · 74 | Journey into Nyx | 74 | Rare | $0.45 |
| King Narfi's BetrayalKaldheim · 219 | Kaldheim | 219 | Rare | $0.21 |
| King Narfi's BetrayalThe Lost Caverns of Ixalan Commander · 272 | The Lost Caverns of Ixalan Commander | 272 | Rare | €0.15 |
| King Narfi's BetrayalKaldheim Promos · 219p | Kaldheim Promos | 219p | Rare | €0.23 |
| King Narfi's BetrayalKaldheim Promos · 219s | Kaldheim Promos | 219s | Rare | €0.40 |
| King of the OathbreakersThe Lord of the Rings: Tales of Middle-earth · 211 | The Lord of the Rings: Tales of Middle-earth | 211 | Rare | €0.16 |
| King of the OathbreakersThe Lord of the Rings: Tales of Middle-earth · 369 | The Lord of the Rings: Tales of Middle-earth | 369 | Rare | $0.39 |
| King of the OathbreakersThe Lord of the Rings: Tales of Middle-earth · 662 | The Lord of the Rings: Tales of Middle-earth | 662 | Rare | €1.70 |
| King of the OathbreakersThe Lord of the Rings: Tales of Middle-earth · 780 | The Lord of the Rings: Tales of Middle-earth | 780 | Rare | €0.94 |
| King of the OathbreakersTales of Middle-earth Promos · 211s | Tales of Middle-earth Promos | 211s | Rare | €1.58 |
| King of the PrideModern Horizons 1 Timeshifts · 4 | Modern Horizons 1 Timeshifts | 4 | Uncommon | €0.30 |
| King of the PrideJumpstart 2022 · 57 | Jumpstart 2022 | 57 | Uncommon | €0.20 |
| King of the PrideFoundations Jumpstart · 214 | Foundations Jumpstart | 214 | Uncommon | €0.33 |
| King of the PrideModern Horizons · 16 | Modern Horizons | 16 | Uncommon | €0.21 |
| King of the PrideThe List Tokens · MH1-16 | The List Tokens | MH1-16 | Uncommon | €0.46 |
| King of the PrideJumpstart: Historic Horizons · 99 | Jumpstart: Historic Horizons | 99 | Uncommon | — |
| King of the PrideMagic Online Promos · 91225 | Magic Online Promos | 91225 | Rare | — |
| Kingpin's EnforcersMarvel Super Heroes · 102 | Marvel Super Heroes | 102 | Common | €0.05 |
| Kingpin's PetGatecrash · 173 | Gatecrash | 173 | Common | $0.08 |
| Kingpin's PetThe List Tokens · GTC-173 | The List Tokens | GTC-173 | Common | €0.14 |
| Kingpin, Wilson FiskMarvel Super Heroes Commander · 661 | Marvel Super Heroes Commander | 661 | Rare | $0.57 |
| King's AssassinMystery Booster 2 Tokens · 43 | Mystery Booster 2 Tokens | 43 | Rare | $0.25 |
| King's AssassinPortal · 98 | Portal | 98 | Rare | €5.01 |
| King Solomon's FrogsMarvel Super Heroes Commander · 20 | Marvel Super Heroes Commander | 20 | Rare | €0.21 |
| King Solomon's FrogsMarvel Super Heroes Commander · 312 | Marvel Super Heroes Commander | 312 | Rare | €0.93 |
| King SuleimanArabian Nights · 6 | Arabian Nights | 6 | Rare | €104.01 |
| King T'Challa // Black Panther, Hope EnduringMarvel Super Heroes · 219 | Marvel Super Heroes | 219 | Mythic Rare | $7.69 |