| Name | Edition | Colour | Type | Cost | Power | Rarity | $ |
|---|---|---|---|---|---|---|---|
| Oubliette (a) | AN | Black | Enchantment | 1BB | Common | 1.73 | |
| Oubliette (b) | AN | Black | Enchantment | 1BB | Common | 2.30 | |
| Ouphe Vandals | FD | Green | Creature - Ouphe | 2G | 2/2 | Uncommon | 0.24 |
| Our Market Research | UH | Green | Creature - Elemental | 1GG | 2/2 | Common | 0.13 |
| Oust | RE | White | Sorcery | W | Uncommon | 0.41 | |
| Outbreak | PR | Black | Sorcery | 3B | Uncommon | 0.26 | |
| Outmaneuver | US | Red | Instant | XR | Uncommon | 0.28 | |
| Outrage Shaman | EN | Red | Creature - Goblin Shaman | 3RR | 2/2 | Uncommon | 0.23 |
| Outrider en-Kor | TSN | White | Creature - Kor Rebel Knight | 2W | 2/2 | Uncommon | 0.31 |
| Outrider of Jhess | SA | Blue | Creature - Human Knight | 3U | 2/2 | Common | 0.14 |