| JackknightThe List (Unfinity Foil Edition) · 5 | The List (Unfinity Foil Edition) | 5 | Rare | $0.28 |
| JackknightUnstable · 11 | Unstable | 11 | Rare | €0.16 |
| Jack of Hearts, Volatile HeroMarvel Super Heroes Commander · 693 | Marvel Super Heroes Commander | 693 | Rare | €0.22 |
| Jacob FryeAssassin's Creed · 27 | Assassin's Creed | 27 | Rare | €0.29 |
| Jacob FryeAssassin's Creed · 132 | Assassin's Creed | 132 | Rare | €0.60 |
| Jacob FryeAssassin's Creed · 207 | Assassin's Creed | 207 | Rare | $0.61 |
| Jacques le VertLegends · 232 | Legends | 232 | Rare | €24.75 |
| Jacques le VertMasters Edition · 147 | Masters Edition | 147 | Rare | — |
| Jadar, Ghoulcaller of NephaliaInnistrad: Double Feature · 108 | Innistrad: Double Feature | 108 | Rare | $5.99 |
| Jadar, Ghoulcaller of NephaliaInnistrad: Midnight Hunt · 108 | Innistrad: Midnight Hunt | 108 | Rare | €2.69 |
| Jadar, Ghoulcaller of NephaliaInnistrad: Midnight Hunt · 315 | Innistrad: Midnight Hunt | 315 | Rare | $2.81 |
| Jadar, Ghoulcaller of NephaliaInnistrad: Midnight Hunt Promos · 108p | Innistrad: Midnight Hunt Promos | 108p | Rare | $1.53 |
| Jadar, Ghoulcaller of NephaliaInnistrad: Midnight Hunt Promos · 108s | Innistrad: Midnight Hunt Promos | 108s | Rare | $9.18 |
| Jadar, Ghoulcaller of NephaliaSecrets of Strixhaven Commander · 217 | Secrets of Strixhaven Commander | 217 | Rare | $1.63 |
| Jade LeechInvasion · 190 | Invasion | 190 | Rare | €0.21 |
| Jadelight RangerFoundations Jumpstart · 676 | Foundations Jumpstart | 676 | Rare | €0.18 |
| Jadelight RangerRivals of Ixalan Promos · 136p | Rivals of Ixalan Promos | 136p | Rare | €1.01 |
| Jadelight RangerRivals of Ixalan Promos · 136s | Rivals of Ixalan Promos | 136s | Rare | €1.34 |
| Jadelight RangerRivals of Ixalan · 136 | Rivals of Ixalan | 136 | Rare | €0.31 |
| Jadelight RangerThe List Tokens · RIX-136 | The List Tokens | RIX-136 | Rare | €0.41 |
| Jadelight SpelunkerThe Lost Caverns of Ixalan · 196 | The Lost Caverns of Ixalan | 196 | Rare | €0.19 |
| Jadelight SpelunkerThe Lost Caverns of Ixalan · 382 | The Lost Caverns of Ixalan | 382 | Rare | €0.29 |
| Jadelight SpelunkerThe Lost Caverns of Ixalan · 403 | The Lost Caverns of Ixalan | 403 | Rare | €0.14 |
| Jadelight SpelunkerThe Lost Caverns of Ixalan Promos · 196p | The Lost Caverns of Ixalan Promos | 196p | Rare | $0.27 |
| Jadelight SpelunkerThe Lost Caverns of Ixalan Promos · 196s | The Lost Caverns of Ixalan Promos | 196s | Rare | $0.45 |
| Jade MonolithUnlimited Edition · 253 | Unlimited Edition | 253 | Rare | €9.01 |
| Jade MonolithRevised Edition · 255 | Revised Edition | 255 | Rare | €0.64 |
| Jade Monolith30th Anniversary Edition · 249 | 30th Anniversary Edition | 249 | Rare | €57.79 |
| Jade Monolith30th Anniversary Edition · 546 | 30th Anniversary Edition | 546 | Rare | €48.03 |
| Jade MonolithFourth Edition Foreign Black Border · 329 | Fourth Edition Foreign Black Border | 329 | Rare | €3.28 |
| Jade MonolithFourth Edition · 329 | Fourth Edition | 329 | Rare | $0.44 |
| Jade MonolithClassic Sixth Edition · 293 | Classic Sixth Edition | 293 | Rare | $0.45 |
| Jade MonolithFifth Edition · 381 | Fifth Edition | 381 | Rare | $0.48 |
| Jade MonolithCollectors' Edition · 253 | Collectors' Edition | 253 | Rare | $1.49 |
| Jade MonolithIntl. Collectors' Edition · 253 | Intl. Collectors' Edition | 253 | Rare | €1.01 |
| Jade MonolithForeign Black Border · 255 | Foreign Black Border | 255 | Rare | €1.60 |
| Jade MonolithLimited Edition Alpha · 252 | Limited Edition Alpha | 252 | Rare | €341.88 |
| Jade MonolithLimited Edition Beta · 253 | Limited Edition Beta | 253 | Rare | €45.61 |
| Jade MonolithSummer Magic / Edgar · 255 | Summer Magic / Edgar | 255 | Rare | — |
| Jade MonolithMasters Edition IV · 208 | Masters Edition IV | 208 | Rare | — |
| Jade StatueNinth Edition · 300 | Ninth Edition | 300 | Rare | €0.20 |
| Jade StatueNinth Edition · 300★ | Ninth Edition | 300★ | Rare | $0.20 |
| Jadzi, Steward of Fate // Oracle's GiftSecrets of Strixhaven Promos · 55p | Secrets of Strixhaven Promos | 55p | Rare | €0.10 |
| Jadzi, Steward of Fate // Oracle's GiftSecrets of Strixhaven · 55 | Secrets of Strixhaven | 55 | Rare | €0.12 |
| Jadzi, Steward of Fate // Oracle's GiftSecrets of Strixhaven · 318 | Secrets of Strixhaven | 318 | Rare | €0.22 |
| Jaheira, Friend of the ForestCommander Legends: Battle for Baldur's Gate · 237 | Commander Legends: Battle for Baldur's Gate | 237 | Rare | €7.69 |
| Jaheira, Friend of the ForestCommander Legends: Battle for Baldur's Gate · 409 | Commander Legends: Battle for Baldur's Gate | 409 | Rare | $8.87 |
| Jaheira, Friend of the ForestCommander Legends: Battle for Baldur's Gate · 518 | Commander Legends: Battle for Baldur's Gate | 518 | Rare | €6.51 |
| Jaheira, Friend of the ForestBattle for Baldur's Gate Promos · 237s | Battle for Baldur's Gate Promos | 237s | Rare | €6.71 |
| Jaheira, Friend of the ForestThe List Tokens · CLB-237 | The List Tokens | CLB-237 | Rare | — |