| Outpost SiegeForgotten Realms Commander · 135 | Forgotten Realms Commander | 135 | Rare | €0.20 |
| Outpost SiegeBloomburrow Commander · 199 | Bloomburrow Commander | 199 | Rare | €0.26 |
| Outpost SiegeCommander 2017 · 139 | Commander 2017 | 139 | Rare | $0.28 |
| Outpost SiegeCommander 2020 · 157 | Commander 2020 | 157 | Rare | €0.22 |
| Outpost SiegeCommander Legends: Battle for Baldur's Gate · 804 | Commander Legends: Battle for Baldur's Gate | 804 | Rare | €0.25 |
| Outpost SiegeFate Reforged · 110 | Fate Reforged | 110 | Rare | $0.24 |
| Outpost SiegeFate Reforged · 110★ | Fate Reforged | 110★ | Rare | €0.19 |
| Outpost SiegeNew Capenna Commander · 272 | New Capenna Commander | 272 | Rare | €0.24 |
| Outpost SiegePioneer Masters · 150 | Pioneer Masters | 150 | Rare | — |
| Outpost SiegeFoundations Commander · 169 | Foundations Commander | 169 | Rare | €0.19 |
| Outrageous RobberyMurders at Karlov Manor · 97 | Murders at Karlov Manor | 97 | Rare | €0.44 |
| Outrageous RobberyMurders at Karlov Manor · 402 | Murders at Karlov Manor | 402 | Rare | €0.51 |
| Outrageous RobberyMurders at Karlov Manor Promos · 97p | Murders at Karlov Manor Promos | 97p | Rare | €0.63 |
| Outrageous RobberyMurders at Karlov Manor Promos · 97s | Murders at Karlov Manor Promos | 97s | Rare | €1.03 |
| Outrage ShamanEventide · 59 | Eventide | 59 | Uncommon | €0.09 |
| Outrider en-KorTime Spiral · 31 | Time Spiral | 31 | Uncommon | €0.10 |
| Outrider en-KorTime Spiral Remastered · 30 | Time Spiral Remastered | 30 | Uncommon | €0.14 |
| Outrider of JhessShards of Alara · 52 | Shards of Alara | 52 | Common | €0.05 |
| OutwitAvacyn Restored · 70 | Avacyn Restored | 70 | Common | $0.05 |
| Ovalchase DaredevilDouble Masters · 101 | Double Masters | 101 | Uncommon | €0.18 |
| Ovalchase DaredevilKaladesh · 97 | Kaladesh | 97 | Uncommon | €0.25 |
| Ovalchase DaredevilPioneer Masters · 337 | Pioneer Masters | 337 | Uncommon | — |
| Ovalchase DragsterKaladesh · 225 | Kaladesh | 225 | Uncommon | €0.08 |
| Ovalchase DragsterKaladesh Remastered · 256 | Kaladesh Remastered | 256 | Uncommon | — |
| OverabundanceInvasion · 259 | Invasion | 259 | Rare | €2.91 |
| OverachieverMarch of the Machine Jumpstart Front Cards · 2 | March of the Machine Jumpstart Front Cards | 2 | — | — |
| Overbeing of MythEventide · 157 | Eventide | 157 | Rare | €1.14 |
| Overbeing of MythEventide Promos · 157★ | Eventide Promos | 157★ | Rare | €0.69 |
| Overbeing of MythMagic Online Promos · 31967 | Magic Online Promos | 31967 | Rare | — |
| OverblazeBetrayers of Kamigawa · 114 | Betrayers of Kamigawa | 114 | Uncommon | €0.26 |
| OverburdenProphecy · 39 | Prophecy | 39 | Rare | €6.88 |
| Overcharged AmalgamCommander Legends: Battle for Baldur's Gate · 729 | Commander Legends: Battle for Baldur's Gate | 729 | Rare | $0.38 |
| Overcharged AmalgamInnistrad: Double Feature · 338 | Innistrad: Double Feature | 338 | Rare | €0.58 |
| Overcharged AmalgamInnistrad Remastered · 80 | Innistrad Remastered | 80 | Rare | $0.35 |
| Overcharged AmalgamInnistrad: Crimson Vow Promos · 71p | Innistrad: Crimson Vow Promos | 71p | Rare | €0.57 |
| Overcharged AmalgamInnistrad: Crimson Vow Promos · 71s | Innistrad: Crimson Vow Promos | 71s | Rare | $0.75 |
| Overcharged AmalgamInnistrad: Crimson Vow · 71 | Innistrad: Crimson Vow | 71 | Rare | €0.23 |
| Overcharged AmalgamInnistrad: Crimson Vow · 363 | Innistrad: Crimson Vow | 363 | Rare | €1.03 |
| Overcharged AmalgamMagic Online Promos · 95293 | Magic Online Promos | 95293 | Rare | — |
| Overclocked ElectromancerModern Horizons 3 Commander · 58 | Modern Horizons 3 Commander | 58 | Rare | €0.15 |
| Overclocked ElectromancerModern Horizons 3 Commander · 110 | Modern Horizons 3 Commander | 110 | Rare | €0.15 |
| OvercomeRavnica: Clue Edition · 171 | Ravnica: Clue Edition | 171 | Uncommon | $0.13 |
| OvercomeGame Night · 48 | Game Night | 48 | Uncommon | €0.19 |
| OvercomeHour of Devastation · 125 | Hour of Devastation | 125 | Uncommon | €0.05 |
| OvercomeFoundations Jumpstart · 696 | Foundations Jumpstart | 696 | Uncommon | €0.12 |
| OvercomeJumpstart 2022 · 701 | Jumpstart 2022 | 701 | Uncommon | €0.11 |
| OvercomeCore Set 2020 · 186 | Core Set 2020 | 186 | Uncommon | €0.04 |
| OvercomeThe List Tokens · M20-186 | The List Tokens | M20-186 | Uncommon | $0.11 |
| OvercookedAlchemy: Wilds of Eldraine · 11 | Alchemy: Wilds of Eldraine | 11 | Mythic Rare | — |
| OvercookedMystery Booster Commander Edition · 67 | Mystery Booster Commander Edition | 67 | Uncommon | $75.00 |