| Unlicensed DisintegrationKaladesh Remastered · 211 | Kaladesh Remastered | 211 | Uncommon | — |
| Unlicensed DisintegrationMagic Online Promos · 64430 | Magic Online Promos | 64430 | Uncommon | — |
| Unlikely AllianceAlliances · 20 | Alliances | 20 | Uncommon | €0.15 |
| Unlucky Cabbage MerchantAvatar: The Last Airbender · 201 | Avatar: The Last Airbender | 201 | Uncommon | €0.18 |
| Unlucky WitnessMarvel Super Heroes Commander · 812 | Marvel Super Heroes Commander | 812 | Uncommon | €0.16 |
| Unlucky WitnessStreets of New Capenna · 128 | Streets of New Capenna | 128 | Uncommon | €0.12 |
| Unnatural MoonriseInnistrad: Double Feature · 247 | Innistrad: Double Feature | 247 | Uncommon | €0.27 |
| Unnatural MoonriseInnistrad: Midnight Hunt · 247 | Innistrad: Midnight Hunt | 247 | Uncommon | €0.16 |
| Unnatural RestorationPhyrexia: All Will Be One · 191 | Phyrexia: All Will Be One | 191 | Uncommon | €0.57 |
| Unnerving AssaultEventide · 114 | Eventide | 114 | Uncommon | €0.10 |
| Unnerving GraspDuskmourn: House of Horror · 80 | Duskmourn: House of Horror | 80 | Uncommon | €0.06 |
| Unquestioned AuthorityCommander 2018 · 78 | Commander 2018 | 78 | Uncommon | €1.53 |
| Unquestioned AuthorityConspiracy · 85 | Conspiracy | 85 | Uncommon | €0.89 |
| Unquestioned AuthorityCommander Legends · 389 | Commander Legends | 389 | Uncommon | €0.75 |
| Unquestioned AuthorityJudgment · 31 | Judgment | 31 | Uncommon | €1.10 |
| Unquestioned AuthorityJumpstart 2022 · 260 | Jumpstart 2022 | 260 | Uncommon | €1.56 |
| Unquestioned AuthorityThe List Tokens · JUD-31 | The List Tokens | JUD-31 | Uncommon | — |
| UnravelEdge of Eternities · 83 | Edge of Eternities | 83 | Uncommon | €0.05 |
| Unraveling MummyHour of Devastation · 147 | Hour of Devastation | 147 | Uncommon | €0.13 |
| Unravel the AetherBorn of the Gods · 143 | Born of the Gods | 143 | Uncommon | €0.21 |
| Unrooted AncestorTarkir: Dragonstorm · 96 | Tarkir: Dragonstorm | 96 | Uncommon | €0.04 |
| Unscrupulous ContractorOutlaws of Thunder Junction · 112 | Outlaws of Thunder Junction | 112 | Uncommon | €0.11 |
| Unseen WalkerClassic Sixth Edition · 262 | Classic Sixth Edition | 262 | Uncommon | €0.12 |
| Unseen WalkerMirage · 249 | Mirage | 249 | Uncommon | €0.21 |
| Unsparing BoltcasterTarkir: Dragonstorm · 130 | Tarkir: Dragonstorm | 130 | Uncommon | €0.05 |
| Unspeakable SymbolThe List Tokens · SCG-79 | The List Tokens | SCG-79 | Uncommon | $1.23 |
| Unspeakable SymbolScourge · 79 | Scourge | 79 | Uncommon | €1.10 |
| Unstable AmuletModern Horizons 3 · 142 | Modern Horizons 3 | 142 | Uncommon | €0.17 |
| Unstable AmuletModern Horizons 3 · 421 | Modern Horizons 3 | 421 | Uncommon | €0.23 |
| Unstable AmuletModern Horizons 3 · 514 | Modern Horizons 3 | 514 | Uncommon | $0.59 |
| Unstable FootingZendikar · 153 | Zendikar | 153 | Uncommon | €0.07 |
| Unstable FrontierConflux · 145 | Conflux | 145 | Uncommon | €0.12 |
| Unstable FrontierThe List Tokens · CON-145 | The List Tokens | CON-145 | Uncommon | $0.11 |
| Unstable MutationUltimate Masters · 80 | Ultimate Masters | 80 | Uncommon | $0.07 |
| Unstable ObeliskForgotten Realms Commander · 220 | Forgotten Realms Commander | 220 | Uncommon | €0.16 |
| Unstable ObeliskCommander 2014 · 58 | Commander 2014 | 58 | Uncommon | €0.15 |
| Unstable ObeliskCommander 2017 · 229 | Commander 2017 | 229 | Uncommon | $0.18 |
| Unstable ObeliskCommander 2018 · 227 | Commander 2018 | 227 | Uncommon | €0.22 |
| Unstable ObeliskCommander 2021 · 272 | Commander 2021 | 272 | Uncommon | €0.11 |
| Unstable ObeliskCommander Anthology Volume II · 227 | Commander Anthology Volume II | 227 | Uncommon | €0.19 |
| Unstable ObeliskJumpstart · 489 | Jumpstart | 489 | Uncommon | €0.02 |
| Unstable ObeliskStarter Commander Decks · 286 | Starter Commander Decks | 286 | Uncommon | €0.09 |
| Unstable ObeliskCrimson Vow Commander · 170 | Crimson Vow Commander | 170 | Uncommon | €0.11 |
| UnstickerifyUnknown Event · UW01a | Unknown Event | UW01a | Uncommon | — |
| UnsubstantiateEldritch Moon · 79 | Eldritch Moon | 79 | Uncommon | €0.16 |
| UnsubstantiateCore Set 2021 · 82 | Core Set 2021 | 82 | Uncommon | €0.20 |
| UnsubstantiateEldritch Moon Promos Tokens · 79 | Eldritch Moon Promos Tokens | 79 | Uncommon | €0.24 |
| UnsubstantiateThe List Tokens · EMN-79 | The List Tokens | EMN-79 | Uncommon | $0.19 |
| UnsubstantiateSecret Lair Drop Tokens · 2158 | Secret Lair Drop Tokens | 2158 | Uncommon | €0.80 |
| Unswerving SlothAetherdrift · 34 | Aetherdrift | 34 | Uncommon | €0.13 |