| Oakhame AdversaryThrone of Eldraine · 167 | Throne of Eldraine | 167 | Uncommon | €0.25 |
| Oakhame AdversaryThe List Tokens · ELD-167 | The List Tokens | ELD-167 | Uncommon | $0.18 |
| Oakhame Ranger // Bring BackThrone of Eldraine · 212 | Throne of Eldraine | 212 | Uncommon | €0.04 |
| Oakhame Ranger // Bring BackThrone of Eldraine · 302 | Throne of Eldraine | 302 | Uncommon | €0.09 |
| Oakhame Ranger // Bring BackMagic Online Promos · 78738 | Magic Online Promos | 78738 | Uncommon | — |
| Oakhollow VillageBloomburrow · 258 | Bloomburrow | 258 | Uncommon | €0.49 |
| Oakshade Stalker // Moonlit AmbusherInnistrad: Double Feature · 479 | Innistrad: Double Feature | 479 | Uncommon | €0.16 |
| Oakshade Stalker // Moonlit AmbusherInnistrad: Crimson Vow · 212 | Innistrad: Crimson Vow | 212 | Uncommon | €0.09 |
| Oak Street InnkeeperReturn to Ravnica · 131 | Return to Ravnica | 131 | Uncommon | €0.13 |
| OasisFourth Edition Foreign Black Border · 362 | Fourth Edition Foreign Black Border | 362 | Uncommon | €1.24 |
| OasisFourth Edition · 362 | Fourth Edition | 362 | Uncommon | $0.25 |
| OasisArabian Nights · 78 | Arabian Nights | 78 | Uncommon | €16.24 |
| OasisRinascimento · 173 | Rinascimento | 173 | Uncommon | €0.29 |
| OasisRenaissance · 188 | Renaissance | 188 | Uncommon | €0.19 |
| Oath of GideonPioneer Masters · 323 | Pioneer Masters | 323 | Uncommon | — |
| Oath of JacePioneer Masters · 331 | Pioneer Masters | 331 | Uncommon | — |
| Oath of LilianaPioneer Masters · 336 | Pioneer Masters | 336 | Uncommon | — |
| Oath of the Grey HostThe Lord of the Rings: Tales of Middle-earth · 101 | The Lord of the Rings: Tales of Middle-earth | 101 | Uncommon | €0.08 |
| Oath of the Grey HostThe Lord of the Rings: Tales of Middle-earth · 552 | The Lord of the Rings: Tales of Middle-earth | 552 | Uncommon | €0.28 |
| Oathsworn GiantThe List Tokens · RAV-27 | The List Tokens | RAV-27 | Uncommon | €0.15 |
| Oathsworn GiantRavnica: City of Guilds · 27 | Ravnica: City of Guilds | 27 | Uncommon | €0.34 |
| Oathsworn VampireJumpstart 2022 · 70 | Jumpstart 2022 | 70 | Uncommon | €0.26 |
| Oathsworn VampireThe Lost Caverns of Ixalan Commander · 204 | The Lost Caverns of Ixalan Commander | 204 | Uncommon | €0.21 |
| Oathsworn VampireRivals of Ixalan · 80 | Rivals of Ixalan | 80 | Uncommon | $0.14 |
| Obeka, Brute ChronologistThe Zeta Set · 92 | The Zeta Set | 92 | Uncommon | — |
| Obeka, Brute ChronologistThe Zeta Set · 213 | The Zeta Set | 213 | Uncommon | — |
| Obeka, Brute ChronologistThe Zeta Set · 334 | The Zeta Set | 334 | Uncommon | — |
| Obelisk of UndoingRinascimento · 134 | Rinascimento | 134 | Uncommon | €0.79 |
| Obelisk SpiderHour of Devastation · 141 | Hour of Devastation | 141 | Uncommon | $2.40 |
| Obelisk SpiderThe List Tokens · HOU-141 | The List Tokens | HOU-141 | Uncommon | $4.20 |
| Obelisk SpiderAmonkhet Remastered · 249 | Amonkhet Remastered | 249 | Uncommon | — |
| Obliterating BoltThe Brothers' War · 145 | The Brothers' War | 145 | Uncommon | €0.13 |
| Obliterating BoltFoundations · 629 | Foundations | 629 | Uncommon | $0.12 |
| Oblivion RingDuel Decks: Venser vs. Koth · 28 | Duel Decks: Venser vs. Koth | 28 | Uncommon | $0.21 |
| Oblivion RingMagic 2012 · 27 | Magic 2012 | 27 | Uncommon | €0.17 |
| Oblivion RingMagic 2013 · 22 | Magic 2013 | 22 | Uncommon | €0.17 |
| Oblivion RingModern Masters 2015 · 29 | Modern Masters 2015 | 29 | Uncommon | €0.21 |
| Oblivious BookwormDuskmourn: House of Horror · 225 | Duskmourn: House of Horror | 225 | Uncommon | €0.08 |
| Oblivious BookwormDuskmourn: House of Horror · 300 | Duskmourn: House of Horror | 300 | Uncommon | $0.18 |
| Ob Nixilis, the Hate-TwistedJumpstart 2022 · 450 | Jumpstart 2022 | 450 | Uncommon | €0.37 |
| Ob Nixilis, the Hate-TwistedWar of the Spark Promos · 100s | War of the Spark Promos | 100s | Uncommon | €0.88 |
| Ob Nixilis, the Hate-TwistedWar of the Spark Promos · 100s★ | War of the Spark Promos | 100s★ | Uncommon | €9.51 |
| Ob Nixilis, the Hate-TwistedSecret Lair Drop Tokens · 511 | Secret Lair Drop Tokens | 511 | Uncommon | €2.94 |
| Ob Nixilis, the Hate-TwistedWar of the Spark · 100 | War of the Spark | 100 | Uncommon | €0.21 |
| Ob Nixilis, the Hate-TwistedWar of the Spark · 100★ | War of the Spark | 100★ | Uncommon | €0.55 |
| Ob Nixilis, the Hate-TwistedMagic Online Promos · 72251 | Magic Online Promos | 72251 | Uncommon | — |
| Ob Nixilis, the Hate-TwistedMagic Online Promos · 77985 | Magic Online Promos | 77985 | Uncommon | — |
| Oboro EnvoySaviors of Kamigawa · 49 | Saviors of Kamigawa | 49 | Uncommon | €0.15 |
| Obscura CharmStreets of New Capenna · 208 | Streets of New Capenna | 208 | Uncommon | €0.08 |
| Obscura CharmStreets of New Capenna · 323 | Streets of New Capenna | 323 | Uncommon | €0.07 |