Magic: the Gathering (Cards)
| Name | Collector Number |
|---|---|
| Mary Jane Watson Marvel's Spider-Man Promos | 134s |
| Mary Jane Watson // Mary Jane Watson (2 variants) Marvel's Spider-Man Art Series | 50 |
| Mary O'Kill (2 variants) Unstable | 138 |
| Mary O'Kill The List (Unfinity Foil Edition) | 50 |
| Mary Read and Anne Bonny Assassin's Creed | 120z |
| Mary Read and Anne Bonny (14 variants) Assassin's Creed | 120 |
| Mary Read and Anne Bonny (14 variants) Assassin's Creed | 61 |
| Mary Read and Anne Bonny (5 variants) Assassin's Creed | 242 |
| Mary Read and Anne Bonny // Mary Read and Anne Bonny (2 variants) Assassin's Creed Art Series | 7 |
| Masako the Humorless (16 variants) Champions of Kamigawa | 33 |
| Mascot Exhibition Strixhaven: School of Mages Promos | 5s |
| Mascot Exhibition (12 variants) Strixhaven: School of Mages | 285 |
| Mascot Exhibition (22 variants) Strixhaven: School of Mages | 5 |
| Mascot Exhibition (2 variants) Strixhaven: School of Mages Promos | 5p |
| Mascot Interception (22 variants) Strixhaven: School of Mages | 110 |
| Mask Commander 2018 Tokens | 4 |
| Mask of Avacyn (19 variants) Commander Legends | 466 |
| Mask of Avacyn (22 variants) Innistrad | 229 |
| Mask of Griselbrand (6 variants) Duskmourn: House of Horror Commander | 145 |
| Mask of Griselbrand Innistrad: Midnight Hunt Promos | 111s |
| Mask of Griselbrand (2 variants) Innistrad: Double Feature | 111 |
| Mask of Griselbrand (12 variants) Innistrad: Midnight Hunt | 347 |
| Mask of Griselbrand (22 variants) Innistrad: Midnight Hunt | 111 |
| Mask of Griselbrand (2 variants) Innistrad: Midnight Hunt Promos | 111p |
| Mask of Immolation (22 variants) Core Set 2020 | 151 |
| Mask of Intolerance (18 variants) Apocalypse | 138 |
| Mask of Law and Grace (15 variants) Urza's Destiny | 11 |
| Mask of Memory (18 variants) Commander Legends | 324 |
| Mask of Memory The List | C14-249 |
| Mask of Memory Warhammer 40,000 Commander | 243 |
| Mask of Memory (7 variants) Phyrexia: All Will Be One Commander | 136 |
| Mask of Memory Warhammer 40,000 Commander | 243★ |
| Mask of Memory (2 variants) Secret Lair Drop | 2309 |
| Mask of Memory Planechase | 119 |
| Mask of Memory (12 variants) Final Fantasy Commander | 350 |
| Mask of Memory (18 variants) Mirrodin | 203 |
| Mask of Memory (7 variants) Commander 2014 | 249 |
| Mask of Riddles (10 variants) New Capenna Commander | 347 |
| Mask of Riddles (18 variants) Alara Reborn | 25 |
| Mask of the Jadecrafter (16 variants) The Brothers' War | 201 |
| Mask of the Mimic (9 variants) Stronghold | 37 |
| Mask of the Schemer New Capenna Commander Promos | 28p |
| Mask of the Schemer (5 variants) New Capenna Commander | 129 |
| Mask of the Schemer (10 variants) New Capenna Commander | 28 |
| Masked Admirers (2 variants) Modern Masters | 154 |
| Masked Admirers (8 variants) Commander 2020 | 183 |
| Masked Admirers (7 variants) Commander 2014 | 206 |
| Masked Admirers (18 variants) Lorwyn | 230 |
| Masked Admirers (10 variants) Kaldheim Commander | 69 |
| Masked Admirers The List | MMA-154 |