| Unclaimed TerritoryThe Lost Caverns of Ixalan Commander · 366 | The Lost Caverns of Ixalan Commander | 366 | Uncommon | $0.33 |
| Unclaimed TerritoryModern Horizons 3 Commander · 399 | Modern Horizons 3 Commander | 399 | Uncommon | $0.40 |
| Unclaimed TerritoryMidnight Hunt Commander · 187 | Midnight Hunt Commander | 187 | Uncommon | $0.32 |
| Unclaimed TerritoryMarvel Super Heroes Commander · 275 | Marvel Super Heroes Commander | 275 | Uncommon | €0.25 |
| Unclaimed TerritoryIxalan Promos · 258 | Ixalan Promos | 258 | Uncommon | €0.21 |
| Unclaimed TerritoryThe List Tokens · XLN-258 | The List Tokens | XLN-258 | Uncommon | $0.37 |
| Unclaimed TerritoryCrimson Vow Commander · 188 | Crimson Vow Commander | 188 | Uncommon | €0.34 |
| Unclaimed TerritoryIxalan · 258 | Ixalan | 258 | Uncommon | €0.37 |
| Uncle IrohAvatar: The Last Airbender · 248 | Avatar: The Last Airbender | 248 | Uncommon | €0.07 |
| Uncle IstvanFourth Edition Foreign Black Border · 165 | Fourth Edition Foreign Black Border | 165 | Uncommon | €1.01 |
| Uncle IstvanFourth Edition · 165 | Fourth Edition | 165 | Uncommon | $0.27 |
| Uncle IstvanThe Dark · 54 | The Dark | 54 | Uncommon | €1.72 |
| Uncle IstvanRenaissance · 66 | Renaissance | 66 | Uncommon | €0.55 |
| Uncontrollable AngerConspiracy · 155 | Conspiracy | 155 | Uncommon | $0.05 |
| Unconventional TacticsHour of Devastation · 27 | Hour of Devastation | 27 | Uncommon | €0.07 |
| Unconventional TacticsAmonkhet Remastered · 43 | Amonkhet Remastered | 43 | Uncommon | — |
| Unctus's RetrofitterPhyrexia: All Will Be One · 76 | Phyrexia: All Will Be One | 76 | Uncommon | €0.04 |
| Undead AugurAetherdrift Commander · 100 | Aetherdrift Commander | 100 | Uncommon | €0.20 |
| Undead AugurModern Horizons 1 Timeshifts · 15 | Modern Horizons 1 Timeshifts | 15 | Uncommon | €0.43 |
| Undead AugurJumpstart 2022 · 482 | Jumpstart 2022 | 482 | Uncommon | €0.25 |
| Undead AugurModern Horizons · 112 | Modern Horizons | 112 | Uncommon | €0.28 |
| Undead AugurMidnight Hunt Commander · 130 | Midnight Hunt Commander | 130 | Uncommon | €0.31 |
| Undead AugurStarter Commander Decks · 114 | Starter Commander Decks | 114 | Uncommon | $0.17 |
| Undead AugurThe List Tokens · MH1-112 | The List Tokens | MH1-112 | Uncommon | $0.14 |
| Undead AugurJumpstart: Historic Horizons · 396 | Jumpstart: Historic Horizons | 396 | Uncommon | — |
| Undead AugurFoundations Commander · 129 | Foundations Commander | 129 | Uncommon | €0.22 |
| Undead ButlerInnistrad: Double Feature · 400 | Innistrad: Double Feature | 400 | Uncommon | €0.65 |
| Undead ButlerFoundations Jumpstart · 500 | Foundations Jumpstart | 500 | Uncommon | €0.29 |
| Undead ButlerInnistrad: Crimson Vow · 133 | Innistrad: Crimson Vow | 133 | Uncommon | €0.22 |
| Undead ButlerFoundations Commander · 130 | Foundations Commander | 130 | Uncommon | €0.22 |
| Undead GladiatorMasters 25 · 112 | Masters 25 | 112 | Uncommon | €0.17 |
| Undead GladiatorDominaria Remastered · 105 | Dominaria Remastered | 105 | Uncommon | €0.11 |
| Undead GladiatorDominaria Remastered · 313 | Dominaria Remastered | 313 | Uncommon | $0.16 |
| Undead Hand NinjaMarvel Super Heroes Commander · 670 | Marvel Super Heroes Commander | 670 | Uncommon | $0.48 |
| Undead SlayerMagic 2010 · 37 | Magic 2010 | 37 | Uncommon | €0.02 |
| Undead SlayerThe List Tokens · M10-37 | The List Tokens | M10-37 | Uncommon | €0.02 |
| Undead WarchiefPlanechase · 44 | Planechase | 44 | Uncommon | €9.81 |
| Undead WarchiefScourge · 78 | Scourge | 78 | Uncommon | €4.62 |
| Undead WarchiefFoundations Commander · 131 | Foundations Commander | 131 | Uncommon | $2.79 |
| Undercellar SweepCommander Legends: Battle for Baldur's Gate · 47 | Commander Legends: Battle for Baldur's Gate | 47 | Uncommon | €0.12 |
| Undercity EliminatorMurders at Karlov Manor · 108 | Murders at Karlov Manor | 108 | Uncommon | €0.13 |
| Undercity InformerGatecrash · 82 | Gatecrash | 82 | Uncommon | $0.28 |
| Undercity InformerThe List Tokens · GTC-82 | The List Tokens | GTC-82 | Uncommon | $0.14 |
| Undercity NecroliskGuilds of Ravnica · 87 | Guilds of Ravnica | 87 | Uncommon | €0.02 |
| Undercity ShadeRavnica: City of Guilds · 110 | Ravnica: City of Guilds | 110 | Uncommon | €0.11 |
| Undercity TrollIconic Masters · 188 | Iconic Masters | 188 | Uncommon | €0.06 |
| Undercity TrollMagic Origins · 202 | Magic Origins | 202 | Uncommon | €0.05 |
| Undercity UpheavalMarch of the Machine: The Aftermath · 25 | March of the Machine: The Aftermath | 25 | Uncommon | €0.02 |
| Undercity UpheavalMarch of the Machine: The Aftermath · 75 | March of the Machine: The Aftermath | 75 | Uncommon | €0.04 |
| Undercity UpheavalMarch of the Machine: The Aftermath · 125 | March of the Machine: The Aftermath | 125 | Uncommon | €0.17 |