| Moon Girl and Devil DinosaurMarvel Super Heroes · 223 | Marvel Super Heroes | 223 | Rare | €0.22 |
| Moon Girl and Devil DinosaurMarvel Super Heroes · 421 | Marvel Super Heroes | 421 | Rare | €0.23 |
| MoonlaceThe List Tokens · TSP-68 | The List Tokens | TSP-68 | Rare | €0.33 |
| MoonlaceTime Spiral · 68 | Time Spiral | 68 | Rare | €0.26 |
| Moonlight BargainCommander 2018 · 114 | Commander 2018 | 114 | Rare | €0.15 |
| Moonlight BargainRavnica: City of Guilds · 95 | Ravnica: City of Guilds | 95 | Rare | €0.32 |
| Moonlit MeditationEdge of Eternities · 69 | Edge of Eternities | 69 | Rare | €0.41 |
| Moonlit MeditationEdge of Eternities · 327 | Edge of Eternities | 327 | Rare | €1.11 |
| Moonlit MeditationEdge of Eternities Promos · 69p | Edge of Eternities Promos | 69p | Rare | €0.31 |
| Moonlit MeditationEdge of Eternities Promos · 69s | Edge of Eternities Promos | 69s | Rare | €1.25 |
| Moonring MirrorChampions of Kamigawa · 262 | Champions of Kamigawa | 262 | Rare | €0.36 |
| Moonsilver SpearForgotten Realms Commander · 212 | Forgotten Realms Commander | 212 | Rare | €0.46 |
| Moonsilver SpearAvacyn Restored · 217 | Avacyn Restored | 217 | Rare | €0.44 |
| Moonsilver SpearCommander 2014 · 251 | Commander 2014 | 251 | Rare | €0.25 |
| Moonsilver SpearGame Night: Free-for-All · 118 | Game Night: Free-for-All | 118 | Rare | €0.19 |
| Moonsilver SpearAvacyn Restored Promos · 217★ | Avacyn Restored Promos | 217★ | Rare | €0.42 |
| Moonsilver SpearMagic Online Promos · 44311 | Magic Online Promos | 44311 | Rare | — |
| Moonstone EulogistBloomburrow Commander · 19 | Bloomburrow Commander | 19 | Rare | €0.27 |
| Moonstone EulogistBloomburrow Commander · 54 | Bloomburrow Commander | 54 | Rare | $0.51 |
| Moorland HauntInnistrad · 244 | Innistrad | 244 | Rare | €0.20 |
| Moorland HauntStarter Commander Decks · 310 | Starter Commander Decks | 310 | Rare | $0.14 |
| Moorland HauntSecret Lair Drop Tokens · 349 | Secret Lair Drop Tokens | 349 | Rare | €1.75 |
| Moorland HauntCrimson Vow Commander · 175 | Crimson Vow Commander | 175 | Rare | €0.21 |
| Moorland RescuerMidnight Hunt Commander · 7 | Midnight Hunt Commander | 7 | Rare | €0.15 |
| Moorland RescuerMidnight Hunt Commander · 45 | Midnight Hunt Commander | 45 | Rare | $0.29 |
| Morality ShiftJudgment · 70 | Judgment | 70 | Rare | €2.90 |
| Moratorium StoneGuildpact · 154 | Guildpact | 154 | Rare | $0.14 |
| Mordant DragonDuel Decks: Knights vs. Dragons · 58 | Duel Decks: Knights vs. Dragons | 58 | Rare | €0.21 |
| Mordant DragonStarter Commander Decks · 152 | Starter Commander Decks | 152 | Rare | $0.17 |
| Mordant DragonWorldwake · 85 | Worldwake | 85 | Rare | €0.34 |
| Mordor on the MarchTales of Middle-earth Commander · 512 | Tales of Middle-earth Commander | 512 | Rare | €0.39 |
| Mordor on the MarchTales of Middle-earth Commander · 556 | Tales of Middle-earth Commander | 556 | Rare | €2.45 |
| Moria MarauderThe Lord of the Rings: Tales of Middle-earth · 138 | The Lord of the Rings: Tales of Middle-earth | 138 | Rare | $0.40 |
| Moria MarauderThe Lord of the Rings: Tales of Middle-earth · 362 | The Lord of the Rings: Tales of Middle-earth | 362 | Rare | €1.03 |
| Moria MarauderThe Lord of the Rings: Tales of Middle-earth · 589 | The Lord of the Rings: Tales of Middle-earth | 589 | Rare | $2.58 |
| Moria MarauderThe Lord of the Rings: Tales of Middle-earth · 773 | The Lord of the Rings: Tales of Middle-earth | 773 | Rare | $0.91 |
| Moria MarauderTales of Middle-earth Promos · 138s | Tales of Middle-earth Promos | 138s | Rare | €2.62 |
| Moria ScavengerTales of Middle-earth Commander · 63 | Tales of Middle-earth Commander | 63 | Rare | $0.43 |
| Moria ScavengerTales of Middle-earth Commander · 145 | Tales of Middle-earth Commander | 145 | Rare | €0.50 |
| Moria ScavengerTales of Middle-earth Commander · 470 | Tales of Middle-earth Commander | 470 | Rare | $2.28 |
| MorinfenWeatherlight · 75 | Weatherlight | 75 | Rare | $0.69 |
| Morinfen AvatarMagic Online Avatars · 76 | Magic Online Avatars | 76 | Rare | — |
| Moriok RiggerFifth Dawn · 54 | Fifth Dawn | 54 | Rare | €0.38 |
| Morlun, Devourer of SpidersMarvel's Spider-Man Promos · 59s | Marvel's Spider-Man Promos | 59s | Rare | €1.33 |
| Morlun, Devourer of SpidersMarvel's Spider-Man · 59 | Marvel's Spider-Man | 59 | Rare | €0.32 |
| Morlun, Devourer of SpidersMarvel's Spider-Man · 257 | Marvel's Spider-Man | 257 | Rare | €0.43 |
| Morlun, Devourer of SpidersThrough the Omenpaths · 60 | Through the Omenpaths | 60 | Rare | — |
| MorningtideTorment · 10 | Torment | 10 | Rare | $0.43 |
| Mornsong AriaLorwyn Eclipsed · 111 | Lorwyn Eclipsed | 111 | Rare | €0.14 |
| Mornsong AriaLorwyn Eclipsed · 361 | Lorwyn Eclipsed | 361 | Rare | €0.41 |