| Mornsong AriaLorwyn Eclipsed Promos · 111p | Lorwyn Eclipsed Promos | 111p | Rare | €0.02 |
| Morphic PoolBattlebond · 83 | Battlebond | 83 | Rare | €28.00 |
| Morphic PoolCommander Legends: Battle for Baldur's Gate · 357 | Commander Legends: Battle for Baldur's Gate | 357 | Rare | $23.93 |
| Morphic PoolCommander Legends: Battle for Baldur's Gate · 603 | Commander Legends: Battle for Baldur's Gate | 603 | Rare | $28.08 |
| Morphic PoolBattle for Baldur's Gate Promos · 357s | Battle for Baldur's Gate Promos | 357s | Rare | €16.18 |
| MorphlingJudge Gift Cards 2010 · 6 | Judge Gift Cards 2010 | 6 | Rare | €63.54 |
| MorphlingUrza's Saga · 85 | Urza's Saga | 85 | Rare | €26.00 |
| MorphlingMagic Online Promos · 26982 | Magic Online Promos | 26982 | Rare | — |
| MorphlingMagic Online Promos · 36847 | Magic Online Promos | 36847 | Rare | — |
| Mortal CombatTenth Edition · 160 | Tenth Edition | 160 | Rare | €2.44 |
| Mortal CombatTorment · 71 | Torment | 71 | Rare | €2.69 |
| Mortarion, Daemon PrimarchWarhammer 40,000 Commander · 41 | Warhammer 40,000 Commander | 41 | Rare | €0.45 |
| Mortarion, Daemon PrimarchWarhammer 40,000 Commander · 41★ | Warhammer 40,000 Commander | 41★ | Rare | $8.09 |
| Mortician BeetleRise of the Eldrazi · 117 | Rise of the Eldrazi | 117 | Rare | $3.14 |
| MortifyMagic Player Rewards 2007 · 3 | Magic Player Rewards 2007 | 3 | Rare | €1.06 |
| MortifyThe List Tokens · P07-3 | The List Tokens | P07-3 | Rare | €0.71 |
| MortifyStore Championships · 21 | Store Championships | 21 | Rare | €0.21 |
| MortifySecret Lair Drop Tokens · 1801 | Secret Lair Drop Tokens | 1801 | Rare | €3.52 |
| MortivoreTenth Edition · 161 | Tenth Edition | 161 | Rare | €0.42 |
| MortivoreTenth Edition · 161★ | Tenth Edition | 161★ | Rare | €0.32 |
| MortivoreNinth Edition · 147 | Ninth Edition | 147 | Rare | $0.66 |
| MortivoreNinth Edition · 147★ | Ninth Edition | 147★ | Rare | $0.66 |
| MortivoreCommander Anthology Volume II · 69 | Commander Anthology Volume II | 69 | Rare | $0.45 |
| MortivoreCommander 2011 · 89 | Commander 2011 | 89 | Rare | €0.40 |
| MortivoreDuels of the Planeswalkers · 30 | Duels of the Planeswalkers | 30 | Rare | €0.46 |
| MortivoreModern Horizons 3 Commander · 201 | Modern Horizons 3 Commander | 201 | Rare | €0.15 |
| MortivoreOdyssey · 152 | Odyssey | 152 | Rare | €1.40 |
| MortivoreSalvat 2011 · 78 | Salvat 2011 | 78 | Rare | €0.89 |
| MortuaryStronghold · 66 | Stronghold | 66 | Rare | €10.81 |
| MortuaryThe List Tokens · STH-66 | The List Tokens | STH-66 | Rare | €4.99 |
| Moseo, Vein's New DeanSecrets of Strixhaven Promos · 91p | Secrets of Strixhaven Promos | 91p | Rare | €0.74 |
| Moseo, Vein's New DeanSecrets of Strixhaven · 91 | Secrets of Strixhaven | 91 | Rare | €0.81 |
| Moseo, Vein's New DeanSecrets of Strixhaven · 326 | Secrets of Strixhaven | 326 | Rare | €1.50 |
| Mossborn HydraFoundations · 107 | Foundations | 107 | Rare | €11.32 |
| Mossborn HydraFoundations · 337 | Foundations | 337 | Rare | €16.25 |
| Mossborn HydraFoundations · 399 | Foundations | 399 | Rare | €61.75 |
| Mossborn HydraFoundations · 471 | Foundations | 471 | Rare | €12.81 |
| Mossborn HydraFoundations Promos · 107p | Foundations Promos | 107p | Rare | €9.28 |
| Mossborn HydraFoundations Promos · 107s | Foundations Promos | 107s | Rare | €13.70 |
| Mossbridge TrollShadowmoor · 123 | Shadowmoor | 123 | Rare | €0.54 |
| Mossfire ValleyForgotten Realms Commander · 250 | Forgotten Realms Commander | 250 | Rare | €0.08 |
| Mossfire ValleyBloomburrow Commander · 316 | Bloomburrow Commander | 316 | Rare | €0.23 |
| Mossfire ValleyCommander 2020 · 290 | Commander 2020 | 290 | Rare | $0.27 |
| Mossfire ValleyCommander Legends: Battle for Baldur's Gate · 901 | Commander Legends: Battle for Baldur's Gate | 901 | Rare | €0.25 |
| Mossfire ValleyFinal Fantasy Commander · 407 | Final Fantasy Commander | 407 | Rare | €0.18 |
| Mossfire ValleyModern Horizons 3 Commander · 357 | Modern Horizons 3 Commander | 357 | Rare | €0.19 |
| Mossfire ValleyMurders at Karlov Manor Commander · 274 | Murders at Karlov Manor Commander | 274 | Rare | €0.14 |
| Mossfire ValleyMarch of the Machine Commander · 414 | March of the Machine Commander | 414 | Rare | €0.19 |
| Mossfire ValleyNeon Dynasty Commander · 171 | Neon Dynasty Commander | 171 | Rare | €0.12 |
| Mossfire ValleyNew Capenna Commander · 414 | New Capenna Commander | 414 | Rare | €0.10 |