| Jetpack JanitorUnfinity · 301 | Unfinity | 301 | Common | €0.23 |
| Jewel-Eyed CobraModern Horizons 2 · 168 | Modern Horizons 2 | 168 | Common | €0.06 |
| Jewel-Eyed CobraJumpstart: Historic Horizons · 592 | Jumpstart: Historic Horizons | 592 | Common | — |
| Jewel ThiefStreets of New Capenna · 151 | Streets of New Capenna | 151 | Common | $0.26 |
| Jewel ThiefThe List Tokens · SNC-151 | The List Tokens | SNC-151 | Common | $0.15 |
| Jhessian LookoutShards of Alara · 46 | Shards of Alara | 46 | Common | €0.05 |
| Jhessian ThiefIconic Masters · 61 | Iconic Masters | 61 | Common | €0.07 |
| Jhessian ZombiesAlara Reborn · 22 | Alara Reborn | 22 | Common | €0.14 |
| Jhessian ZombiesDuel Decks: Ajani vs. Nicol Bolas · 56 | Duel Decks: Ajani vs. Nicol Bolas | 56 | Common | $0.10 |
| Jhoira's TimebugTime Spiral · 257 | Time Spiral | 257 | Common | €0.16 |
| Jhoira's TimebugTime Spiral Remastered · 269 | Time Spiral Remastered | 269 | Common | €0.27 |
| Jibbirik OmnivoreAetherdrift · 166 | Aetherdrift | 166 | Common | €0.15 |
| JiltApocalypse · 27 | Apocalypse | 27 | Common | $0.17 |
| JinxHomelands · 29 | Homelands | 29 | Common | $0.21 |
| Johann's StopgapWilds of Eldraine · 58 | Wilds of Eldraine | 58 | Common | €0.05 |
| Joint AssaultAvacyn Restored · 183 | Avacyn Restored | 183 | Common | €0.04 |
| Join the DeadThe Lost Caverns of Ixalan · 110 | The Lost Caverns of Ixalan | 110 | Common | €0.05 |
| Join the MaestrosStreets of New Capenna · 85 | Streets of New Capenna | 85 | Common | $0.04 |
| Join the RanksWorldwake · 9 | Worldwake | 9 | Common | €0.11 |
| Join the Winning TeamUnknown Event · CR03d | Unknown Event | CR03d | Common | — |
| Jolrael's CentaurMirage · 222 | Mirage | 222 | Common | $0.12 |
| Jolrael's CentaurWorld Championship Decks 1997 Tokens · sg222 | World Championship Decks 1997 Tokens | sg222 | Common | €0.20 |
| Jolrael's FavorProphecy · 116 | Prophecy | 116 | Common | €0.09 |
| JoltMirage · 70 | Mirage | 70 | Common | $0.21 |
| Jolted AwakeModern Horizons 3 · 33 | Modern Horizons 3 | 33 | Common | €0.13 |
| Jolted AwakeModern Horizons 3 · 392 | Modern Horizons 3 | 392 | Common | €0.14 |
| Jolted AwakeModern Horizons 3 · 509 | Modern Horizons 3 | 509 | Common | €0.24 |
| Joraga BardDuel Decks: Zendikar vs. Eldrazi Tokens · 17 | Duel Decks: Zendikar vs. Eldrazi Tokens | 17 | Common | €0.02 |
| Joraga BardZendikar · 166 | Zendikar | 166 | Common | €0.11 |
| Joraga PeachUnknown Event · CG01 | Unknown Event | CG01 | Common | — |
| Joraga VisionaryGame Night: Free-for-All · 100 | Game Night: Free-for-All | 100 | Common | $0.18 |
| Joraga VisionaryZendikar Rising · 188 | Zendikar Rising | 188 | Common | €0.07 |
| Journey of DiscoveryMirrodin · 123 | Mirrodin | 123 | Common | €0.19 |
| Journey to NowhereCommander 2011 · 17 | Commander 2011 | 17 | Common | $0.46 |
| Journey to NowhereDuel Decks: Elspeth vs. Tezzeret · 23 | Duel Decks: Elspeth vs. Tezzeret | 23 | Common | $0.34 |
| Journey to NowhereThe List Tokens · ZEN-14 | The List Tokens | ZEN-14 | Common | $0.20 |
| Journey to NowhereZendikar · 14 | Zendikar | 14 | Common | $0.41 |
| Jousting DummyThrone of Eldraine · 224 | Throne of Eldraine | 224 | Common | €0.03 |
| Jousting DummyJumpstart · 470 | Jumpstart | 470 | Common | €0.13 |
| Jousting LanceDominaria · 221 | Dominaria | 221 | Common | €0.07 |
| Jousting LanceJumpstart 2022 · 779 | Jumpstart 2022 | 779 | Common | €0.07 |
| JovenHomelands · 77 | Homelands | 77 | Common | €0.26 |
| Joven's FerretsHomelands · 89 | Homelands | 89 | Common | €0.27 |
| Joyous RespiteChampions of Kamigawa · 216 | Champions of Kamigawa | 216 | Common | €0.07 |
| Joyride RiggerUnstable · 114 | Unstable | 114 | Common | $0.04 |
| Judge of CurrentsLorwyn · 22 | Lorwyn | 22 | Common | €0.14 |
| Judge's FamiliarRavnica Remastered · 192 | Ravnica Remastered | 192 | Common | €0.22 |
| Judge UnworthyFuture Sight · 9 | Future Sight | 9 | Common | €0.05 |
| Judge UnworthyTime Spiral Remastered · 21 | Time Spiral Remastered | 21 | Common | €0.06 |
| JuggernautDominaria Remastered · 228 | Dominaria Remastered | 228 | Common | €0.02 |