| Oaken BrawlerThe List Tokens · LRW-33 | The List Tokens | LRW-33 | Common | €0.14 |
| OakenformMagic 2010 · 197 | Magic 2010 | 197 | Common | €0.09 |
| OakenformCore Set 2019 · 191 | Core Set 2019 | 191 | Common | €0.04 |
| OakenformCore Set 2020 · 341 | Core Set 2020 | 341 | Common | €0.23 |
| OakenformWelcome Deck 2016 · 15 | Welcome Deck 2016 | 15 | Common | €0.06 |
| OakenformWelcome Deck 2017 · 25 | Welcome Deck 2017 | 25 | Common | $0.09 |
| Oaken Power SuitUnstable · 196 | Unstable | 196 | Rare | €0.13 |
| Oaken SirenThe Lost Caverns of Ixalan · 66 | The Lost Caverns of Ixalan | 66 | Common | €0.08 |
| Oakgnarl WarriorDuel Decks: Nissa vs. Ob Nixilis Tokens · 15 | Duel Decks: Nissa vs. Ob Nixilis Tokens | 15 | Common | $0.16 |
| Oakgnarl WarriorLorwyn · 232 | Lorwyn | 232 | Common | €0.07 |
| Oakgnarl WarriorThe List Tokens · DDR-15 | The List Tokens | DDR-15 | Common | €0.07 |
| Oakgnarl WarriorSalvat 2011 · 153 | Salvat 2011 | 153 | Common | €0.13 |
| Oakhame AdversaryThrone of Eldraine · 167 | Throne of Eldraine | 167 | Uncommon | €0.17 |
| Oakhame AdversaryThe List Tokens · ELD-167 | The List Tokens | ELD-167 | Uncommon | €0.15 |
| Oakhame Ranger // Bring BackThrone of Eldraine · 212 | Throne of Eldraine | 212 | Uncommon | €0.07 |
| Oakhame Ranger // Bring BackThrone of Eldraine · 302 | Throne of Eldraine | 302 | Uncommon | €0.11 |
| Oakhame Ranger // Bring BackMagic Online Promos · 78738 | Magic Online Promos | 78738 | Uncommon | — |
| Oakheart DryadsJourney into Nyx · 133 | Journey into Nyx | 133 | Common | $0.06 |
| Oakhollow VillageBloomburrow · 258 | Bloomburrow | 258 | Uncommon | $0.40 |
| Oakshade Stalker // Moonlit AmbusherInnistrad: Double Feature · 479 | Innistrad: Double Feature | 479 | Uncommon | €0.15 |
| Oakshade Stalker // Moonlit AmbusherInnistrad: Crimson Vow · 212 | Innistrad: Crimson Vow | 212 | Uncommon | €0.13 |
| Oak Street InnkeeperReturn to Ravnica · 131 | Return to Ravnica | 131 | Uncommon | €0.16 |
| Oashra CultivatorAmonkhet · 177 | Amonkhet | 177 | Common | €0.06 |
| Oashra CultivatorJumpstart 2022 · 697 | Jumpstart 2022 | 697 | Common | €0.12 |
| Oashra CultivatorAmonkhet Remastered · 204 | Amonkhet Remastered | 204 | Common | — |
| OasisFourth Edition Foreign Black Border · 362 | Fourth Edition Foreign Black Border | 362 | Uncommon | €1.59 |
| OasisFourth Edition · 362 | Fourth Edition | 362 | Uncommon | $0.26 |
| OasisArabian Nights · 78 | Arabian Nights | 78 | Uncommon | €15.67 |
| OasisRinascimento · 173 | Rinascimento | 173 | Uncommon | €0.29 |
| OasisRenaissance · 188 | Renaissance | 188 | Uncommon | €0.22 |
| OasisMasters Edition IV · 248 | Masters Edition IV | 248 | Common | — |
| Oasis GardenerOutlaws of Thunder Junction · 246 | Outlaws of Thunder Junction | 246 | Common | €0.08 |
| Oasis of RenewalAlchemy: Tarkir · 24 | Alchemy: Tarkir | 24 | Rare | — |
| Oasis RitualistHour of Devastation · 124 | Hour of Devastation | 124 | Common | €0.05 |
| Oasis RitualistAmonkhet Remastered · 205 | Amonkhet Remastered | 205 | Common | — |
| Oathkeeper, Takeno's DaishoChampions of Kamigawa · 265 | Champions of Kamigawa | 265 | Rare | €4.78 |
| Oath of AjaniAether Revolt · 131 | Aether Revolt | 131 | Rare | €0.54 |
| Oath of AjaniAether Revolt Promos · 131s | Aether Revolt Promos | 131s | Rare | €1.46 |
| Oath of AjaniKaladesh Remastered · 200 | Kaladesh Remastered | 200 | Rare | — |
| Oath of ChandraOath of the Gatewatch · 113 | Oath of the Gatewatch | 113 | Rare | €0.18 |
| Oath of ChandraOath of the Gatewatch Promos · 113s | Oath of the Gatewatch Promos | 113s | Rare | €0.85 |
| Oath of ChandraPioneer Masters · 148 | Pioneer Masters | 148 | Rare | — |
| Oath of DruidsCommander 2016 · 159 | Commander 2016 | 159 | Rare | €1.50 |
| Oath of DruidsExodus · 115 | Exodus | 115 | Rare | €1.92 |
| Oath of DruidsJudge Gift Cards 2001 · 2 | Judge Gift Cards 2001 | 2 | Rare | €266.41 |
| Oath of DruidsMystery Booster 2 Tokens · 212 | Mystery Booster 2 Tokens | 212 | Mythic Rare | $2.84 |
| Oath of DruidsMagic Online Promos · 36092 | Magic Online Promos | 36092 | Rare | — |
| Oath of DruidsTempest Remastered · 184 | Tempest Remastered | 184 | Mythic Rare | — |
| Oath of DruidsVintage Masters · 223 | Vintage Masters | 223 | Mythic Rare | — |
| Oath of EorlTales of Middle-earth Commander · 64 | Tales of Middle-earth Commander | 64 | Rare | $0.32 |