| Umezawa's JitteSecret Lair Drop Tokens · 1865 | Secret Lair Drop Tokens | 1865 | Rare | €21.14 |
| Umezawa's JitteFrom the Vault: Lore Tokens · 14 | From the Vault: Lore Tokens | 14 | Mythic Rare | €7.30 |
| Umezawa's JitteArena Anthology 3 · 23 | Arena Anthology 3 | 23 | Rare | — |
| Umezawa's JitteMagic Online Theme Decks · B30 | Magic Online Theme Decks | B30 | Rare | — |
| Umezawa's JitteMagic Online Promos · 36210 | Magic Online Promos | 36210 | Rare | — |
| Umori, the CollectorIkoria: Lair of Behemoths · 231 | Ikoria: Lair of Behemoths | 231 | Rare | €0.22 |
| Umori, the CollectorIkoria: Lair of Behemoths · 358 | Ikoria: Lair of Behemoths | 358 | Rare | $0.44 |
| Umori, the CollectorMultiverse Legends · 62 | Multiverse Legends | 62 | Rare | €0.21 |
| Umori, the CollectorMultiverse Legends · 127 | Multiverse Legends | 127 | Rare | €0.51 |
| Umori, the CollectorMultiverse Legends · 192 | Multiverse Legends | 192 | Rare | €5.90 |
| Umori, the CollectorMultiverse Legends · 192z | Multiverse Legends | 192z | Rare | $199.99 |
| Umori, the CollectorIkoria: Lair of Behemoths Promos · 231p | Ikoria: Lair of Behemoths Promos | 231p | Rare | $0.35 |
| Umori, the CollectorIkoria: Lair of Behemoths Promos · 231s | Ikoria: Lair of Behemoths Promos | 231s | Rare | €0.53 |
| Umori, the CollectorMagic Online Promos · 80813 | Magic Online Promos | 80813 | Rare | — |
| Unable to ScreamDuskmourn: House of Horror · 78 | Duskmourn: House of Horror | 78 | Common | €0.21 |
| Unagi's SprayAvatar: The Last Airbender Eternal · 97 | Avatar: The Last Airbender Eternal | 97 | Common | €0.11 |
| Unassuming Gelatinous SerpentUnfinity Sticker Sheets · 36 | Unfinity Sticker Sheets | 36 | Common | $0.35 |
| Unassuming SageWilds of Eldraine · 37 | Wilds of Eldraine | 37 | Common | €0.03 |
| Unauthorized ExitMurders at Karlov Manor · 74 | Murders at Karlov Manor | 74 | Common | €0.14 |
| Unauthorized ExitMurders at Karlov Manor · 298 | Murders at Karlov Manor | 298 | Common | €0.10 |
| Unauthorized Exit // Unauthorized ExitMurders at Karlov Manor Art Series · 30 | Murders at Karlov Manor Art Series | 30 | — | — |
| Unbender TineAlara Reborn · 15 | Alara Reborn | 15 | Uncommon | €0.23 |
| Unbender TineArchenemy · 97 | Archenemy | 97 | Uncommon | €0.09 |
| Unblinking BlebFuture Sight · 45 | Future Sight | 45 | Common | €0.19 |
| Unblinking ObserverInnistrad: Double Feature · 82 | Innistrad: Double Feature | 82 | Common | €0.12 |
| Unblinking ObserverInnistrad: Midnight Hunt · 82 | Innistrad: Midnight Hunt | 82 | Common | €0.05 |
| Unblinking Observer // Unblinking ObserverMidnight Hunt Art Series · 31 | Midnight Hunt Art Series | 31 | — | — |
| Unbounded PotentialCommander Masters · 67 | Commander Masters | 67 | Common | €0.13 |
| Unbounded PotentialModern Horizons 2 · 36 | Modern Horizons 2 | 36 | Common | €0.07 |
| Unbounded PotentialThe List Tokens · MH2-36 | The List Tokens | MH2-36 | Common | $0.16 |
| Unbounded Potential // Unbounded PotentialModern Horizons 2 Art Series · 10 | Modern Horizons 2 Art Series | 10 | — | — |
| Unbounded Potential // Unbounded PotentialModern Horizons 2 Art Series · 10s | Modern Horizons 2 Art Series | 10s | — | — |
| Unbound FlourishingModern Horizons · 189 | Modern Horizons | 189 | Mythic Rare | $2.70 |
| Unbound FlourishingSecrets of Strixhaven Commander · 126 | Secrets of Strixhaven Commander | 126 | Mythic Rare | $2.13 |
| Unbound FlourishingSecret Lair Drop Tokens · 1331 | Secret Lair Drop Tokens | 1331 | Mythic Rare | €12.22 |
| Unbound FlourishingThe List Tokens · MH1-189 | The List Tokens | MH1-189 | Mythic Rare | $11.38 |
| Unbreakable BondIkoria: Lair of Behemoths · 101 | Ikoria: Lair of Behemoths | 101 | Uncommon | €0.07 |
| Unbreakable FormationThe Brothers' War Commander · 78 | The Brothers' War Commander | 78 | Rare | €0.59 |
| Unbreakable FormationCommander Legends: Battle for Baldur's Gate · 710 | Commander Legends: Battle for Baldur's Gate | 710 | Rare | €0.25 |
| Unbreakable FormationCommander Legends · 388 | Commander Legends | 388 | Rare | $0.83 |
| Unbreakable FormationDominaria United Commander · 106 | Dominaria United Commander | 106 | Rare | $0.82 |
| Unbreakable FormationTales of Middle-earth Commander · 179 | Tales of Middle-earth Commander | 179 | Rare | $0.93 |
| Unbreakable FormationMidnight Hunt Commander · 95 | Midnight Hunt Commander | 95 | Rare | €0.20 |
| Unbreakable FormationMarch of the Machine Commander · 213 | March of the Machine Commander | 213 | Rare | €0.78 |
| Unbreakable FormationRavnica Allegiance Promos · 29p | Ravnica Allegiance Promos | 29p | Rare | €1.05 |
| Unbreakable FormationRavnica Allegiance Promos · 29s | Ravnica Allegiance Promos | 29s | Rare | €1.89 |
| Unbreakable FormationURL/Convention Promos · 2025-5 | URL/Convention Promos | 2025-5 | Rare | $28.91 |
| Unbreakable FormationRavnica Allegiance · 29 | Ravnica Allegiance | 29 | Rare | €0.60 |
| Unbreakable FormationRavnica Remastered · 32 | Ravnica Remastered | 32 | Rare | €0.75 |
| Unbreakable FormationSecret Lair Drop Tokens · 310 | Secret Lair Drop Tokens | 310 | Rare | €2.70 |