| UnwindDominaria · 72 | Dominaria | 72 | Common | €1.44 |
| Unwinding ClockThe Brothers' War Retro Artifacts · 61 | The Brothers' War Retro Artifacts | 61 | Rare | €15.42 |
| Unwinding ClockThe Brothers' War Retro Artifacts · 124 | The Brothers' War Retro Artifacts | 124 | Rare | €17.34 |
| Unwinding ClockThe Brothers' War Retro Artifacts · 124z | The Brothers' War Retro Artifacts | 124z | Rare | €161.59 |
| Unwinding ClockCommander 2018 · 228 | Commander 2018 | 228 | Rare | €11.78 |
| Unwinding ClockNew Phyrexia · 164 | New Phyrexia | 164 | Rare | €14.64 |
| Unwinding ClockThe List Tokens · NPH-164 | The List Tokens | NPH-164 | Rare | €8.00 |
| Unworthy DeadUrza's Saga · 163 | Urza's Saga | 163 | Common | €0.10 |
| Unworthy DeadUrza's Saga · 163s | Urza's Saga | 163s | Common | €23.18 |
| UnyaroMarch of the Machine Commander · 68 | March of the Machine Commander | 68 | Common | €0.59 |
| Unyaro BeesTime Spiral · 231 | Time Spiral | 231 | Rare | €0.16 |
| Unyaro Bee StingMirage · 250 | Mirage | 250 | Uncommon | €0.25 |
| Unyaro GriffinClassic Sixth Edition · 49 | Classic Sixth Edition | 49 | Uncommon | €0.12 |
| Unyaro GriffinMirage · 44 | Mirage | 44 | Uncommon | €0.15 |
| Unyielding GatekeeperMurders at Karlov Manor · 35 | Murders at Karlov Manor | 35 | Rare | $0.12 |
| Unyielding GatekeeperMurders at Karlov Manor · 392 | Murders at Karlov Manor | 392 | Rare | €0.15 |
| Unyielding GatekeeperMurders at Karlov Manor Promos · 35p | Murders at Karlov Manor Promos | 35p | Rare | €0.19 |
| Unyielding GatekeeperMurders at Karlov Manor Promos · 35s | Murders at Karlov Manor Promos | 35s | Rare | €0.42 |
| Unyielding KrumarKhans of Tarkir · 94 | Khans of Tarkir | 94 | Common | €0.04 |
| Unyielding KrumarThe List Tokens · KTK-94 | The List Tokens | KTK-94 | Common | €0.05 |
| UpdraftFifth Edition · 133 | Fifth Edition | 133 | Common | €0.13 |
| UpdraftIce Age · 105 | Ice Age | 105 | Uncommon | $0.23 |
| Updraft ElementalDragons of Tarkir · 82 | Dragons of Tarkir | 82 | Common | €0.03 |
| UpheavalModern Horizons 2 · 270 | Modern Horizons 2 | 270 | Rare | €0.25 |
| UpheavalOdyssey · 113 | Odyssey | 113 | Rare | €4.57 |
| UpheavalFrom the Vault: Annihilation · 13 | From the Vault: Annihilation | 13 | Mythic Rare | €0.57 |
| UpheavalWorld Championship Decks 2002 Tokens · cr113 | World Championship Decks 2002 Tokens | cr113 | Rare | €0.69 |
| UpheavalVintage Masters · 100 | Vintage Masters | 100 | Mythic Rare | — |
| Uphill BattleMercadian Masques · 222 | Mercadian Masques | 222 | Uncommon | €0.50 |
| Upriser RenegadeKamigawa: Neon Dynasty · 170 | Kamigawa: Neon Dynasty | 170 | Uncommon | €0.05 |
| Upriser RenegadeKamigawa: Neon Dynasty · 324 | Kamigawa: Neon Dynasty | 324 | Uncommon | €0.08 |
| Upriser Renegade // Upriser RenegadeNeon Dynasty Art Series · 65 | Neon Dynasty Art Series | 65 | — | — |
| UprootBetrayers of Kamigawa · 149 | Betrayers of Kamigawa | 149 | Common | $0.06 |
| Up the BeanstalkWilds of Eldraine · 195 | Wilds of Eldraine | 195 | Uncommon | $2.27 |
| Up the BeanstalkThe List Tokens · WOE-195 | The List Tokens | WOE-195 | Uncommon | — |
| UpwellingTenth Edition · 306 | Tenth Edition | 306 | Rare | €0.47 |
| UpwellingTenth Edition · 306★ | Tenth Edition | 306★ | Rare | €0.33 |
| UpwellingScourge · 131 | Scourge | 131 | Rare | €0.45 |
| Urabrask, Heretic PraetorStreets of New Capenna Promos · 129p | Streets of New Capenna Promos | 129p | Mythic Rare | $2.51 |
| Urabrask, Heretic PraetorStreets of New Capenna Promos · 129s | Streets of New Capenna Promos | 129s | Mythic Rare | €4.08 |
| Urabrask, Heretic PraetorStreets of New Capenna · 129 | Streets of New Capenna | 129 | Mythic Rare | $1.89 |
| Urabrask, Heretic PraetorStreets of New Capenna · 346 | Streets of New Capenna | 346 | Mythic Rare | €2.45 |
| Urabrask, Heretic PraetorStreets of New Capenna · 360 | Streets of New Capenna | 360 | Mythic Rare | $1.57 |
| Urabrask, Heretic PraetorStreets of New Capenna · 446 | Streets of New Capenna | 446 | Mythic Rare | €0.02 |
| Urabrask, Heretic PraetorStreets of New Capenna · 468 | Streets of New Capenna | 468 | Mythic Rare | €5.30 |
| Urabrask, Heretic PraetorStreets of New Capenna · 469 | Streets of New Capenna | 469 | Mythic Rare | €10.76 |
| Urabrask's AnointerPhyrexia: All Will Be One · 152 | Phyrexia: All Will Be One | 152 | Uncommon | €0.04 |
| Urabrask's AnointerPhyrexia: All Will Be One · 293 | Phyrexia: All Will Be One | 293 | Uncommon | €0.08 |
| Urabrask's AnointerPhyrexia: All Will Be One · 450 | Phyrexia: All Will Be One | 450 | Uncommon | $0.19 |
| Urabrask's ForgePhyrexia: All Will Be One · 153 | Phyrexia: All Will Be One | 153 | Rare | $1.36 |