| Killing WaveInnistrad Remastered · 121 | Innistrad Remastered | 121 | Uncommon | €0.24 |
| Killing WaveInnistrad Remastered · 386 | Innistrad Remastered | 386 | Uncommon | €0.38 |
| Killing WaveAvacyn Restored Promos · 111 | Avacyn Restored Promos | 111 | Rare | €4.54 |
| Killing WaveMagic Online Promos · 44319 | Magic Online Promos | 44319 | Rare | — |
| Killing WaveThe List Tokens · INR-121 | The List Tokens | INR-121 | Uncommon | — |
| Kill! Maim! Burn!Warhammer 40,000 Commander · 128 | Warhammer 40,000 Commander | 128 | Rare | €0.23 |
| Kill! Maim! Burn!Warhammer 40,000 Commander · 128★ | Warhammer 40,000 Commander | 128★ | Rare | $0.90 |
| Killmonger, Ruthless UsurperMarvel Super Heroes Commander · 53 | Marvel Super Heroes Commander | 53 | Rare | $0.27 |
| Killmonger, Ruthless UsurperMarvel Super Heroes Commander · 364 | Marvel Super Heroes Commander | 364 | Rare | $1.15 |
| Killmonger, Scourge of WakandaMarvel Super Heroes · 218 | Marvel Super Heroes | 218 | Uncommon | €0.09 |
| Kill ShotConspiracy: Take the Crown · 94 | Conspiracy: Take the Crown | 94 | Common | €0.03 |
| Kill ShotKhans of Tarkir · 15 | Khans of Tarkir | 15 | Common | €0.04 |
| Kill ShotStreets of New Capenna · 19 | Streets of New Capenna | 19 | Common | €0.05 |
| Kill-Suit CultistDissension · 65 | Dissension | 65 | Common | $0.04 |
| Kill SwitchNemesis · 133 | Nemesis | 133 | Rare | €3.14 |
| Kill-Zone AcrobatThe Brothers' War · 106 | The Brothers' War | 106 | Common | €0.03 |
| Kiln FiendConspiracy: Take the Crown · 167 | Conspiracy: Take the Crown | 167 | Common | $0.09 |
| Kiln FiendDuel Decks: Izzet vs. Golgari · 2 | Duel Decks: Izzet vs. Golgari | 2 | Common | $0.15 |
| Kiln FiendIconic Masters · 137 | Iconic Masters | 137 | Common | €0.14 |
| Kiln FiendFoundations Jumpstart · 139 | Foundations Jumpstart | 139 | Common | €0.20 |
| Kiln FiendJumpstart · 338 | Jumpstart | 338 | Common | €0.14 |
| Kiln FiendRise of the Eldrazi · 153 | Rise of the Eldrazi | 153 | Common | €0.19 |
| Kiln FiendThe List Tokens · IMA-137 | The List Tokens | IMA-137 | Common | €0.16 |
| Kiln FiendHistoric Anthology 1 · 10 | Historic Anthology 1 | 10 | Common | — |
| Kilnmouth DragonArchenemy · 44 | Archenemy | 44 | Rare | $0.67 |
| Kilnmouth DragonDuel Decks: Knights vs. Dragons · 59 | Duel Decks: Knights vs. Dragons | 59 | Rare | €0.38 |
| Kilnmouth DragonLegions · 104 | Legions | 104 | Rare | €0.91 |
| Kilnmouth DragonThe List Tokens · DDG-59 | The List Tokens | DDG-59 | Rare | €0.95 |
| Kilnspire DistrictPlanechase 2012 Planes · 23 | Planechase 2012 Planes | 23 | Common | €0.95 |
| Kilnspire DistrictPlanechase Anthology Planes · 44 | Planechase Anthology Planes | 44 | Common | €0.19 |
| Kiln WalkerNew Phyrexia · 142 | New Phyrexia | 142 | Uncommon | €0.09 |
| Kilo, Apogee MindEdge of Eternities Commander · 3 | Edge of Eternities Commander | 3 | Mythic Rare | $0.55 |
| Kimahri, Valiant GuardianFinal Fantasy Commander · 85 | Final Fantasy Commander | 85 | Rare | $0.19 |
| Kimahri, Valiant GuardianFinal Fantasy Commander · 175 | Final Fantasy Commander | 175 | Rare | $0.40 |
| Kimahri, Valiant Guardian // Kimahri, Valiant GuardianFinal Fantasy Art Series · 29 | Final Fantasy Art Series | 29 | — | €1.85 |
| Kimoyo BeadsMarvel Super Heroes Commander · 109 | Marvel Super Heroes Commander | 109 | Rare | €0.18 |
| Kimoyo BeadsMarvel Super Heroes Commander · 440 | Marvel Super Heroes Commander | 440 | Rare | €0.63 |
| KinbindingLorwyn Eclipsed · 20 | Lorwyn Eclipsed | 20 | Rare | €0.24 |
| KinbindingLorwyn Eclipsed · 299 | Lorwyn Eclipsed | 299 | Rare | $0.40 |
| KinbindingLorwyn Eclipsed · 407 | Lorwyn Eclipsed | 407 | Rare | $0.23 |
| KinbindingLorwyn Eclipsed Promos · 20p | Lorwyn Eclipsed Promos | 20p | Rare | €0.17 |
| KindercatchInnistrad · 190 | Innistrad | 190 | Common | $0.05 |
| KindleMasters 25 · 140 | Masters 25 | 140 | Common | €0.14 |
| KindleTempest · 184 | Tempest | 184 | Common | €0.08 |
| KindleTempest Remastered · 137 | Tempest Remastered | 137 | Common | — |
| KindleVintage Masters · 176 | Vintage Masters | 176 | Common | — |
| Kindled FuryDragons of Tarkir · 142 | Dragons of Tarkir | 142 | Common | €0.03 |
| Kindled FuryFoundations · 542 | Foundations | 542 | Common | €0.02 |
| Kindled FuryHour of Devastation · 101 | Hour of Devastation | 101 | Common | €0.05 |
| Kindled FuryFoundations Jumpstart · 571 | Foundations Jumpstart | 571 | Common | €0.03 |