| UnfezantRoaring Skies · 80/108 | Roaring Skies | 80/108 | Uncommon | €0.12 |
| Unidentified FossilAstral Radiance · 157/189 | Astral Radiance | 157/189 | Uncommon | €0.06 |
| Unidentified FossilSilver Tempest · 165/195 | Silver Tempest | 165/195 | Uncommon | €0.05 |
| Unidentified FossilUnified Minds · 210/236 | Unified Minds | 210/236 | Uncommon | €0.19 |
| Unidentified FossilCosmic Eclipse · 207/236 | Cosmic Eclipse | 207/236 | Uncommon | €0.09 |
| Unidentified FossilUltra Prism · 134/156 | Ultra Prism | 134/156 | Uncommon | €0.10 |
| Unidentified FossilForbidden Light · 116/131 | Forbidden Light | 116/131 | Uncommon | €0.10 |
| Unidentified FossilTeam Up · 155/181 | Team Up | 155/181 | Uncommon | $0.16 |
| Unit Energy FightingDarknessFairyForbidden Light · 118/131 | Forbidden Light | 118/131 | Uncommon | €0.57 |
| Unit Energy GrassFireWaterUltra Prism · 137/156 | Ultra Prism | 137/156 | Uncommon | €0.23 |
| Unit Energy LightningPsychicMetalUltra Prism · 138/156 | Ultra Prism | 138/156 | Uncommon | €0.30 |
| UnownHeartGold & SoulSilver · 54/123 | HeartGold & SoulSilver | 54/123 | Uncommon | €1.42 |
| UnownHeartGold & SoulSilver · 55/123 | HeartGold & SoulSilver | 55/123 | Uncommon | €1.42 |
| UnownHS—Undaunted · 40/90 | HS—Undaunted | 40/90 | Uncommon | €0.63 |
| UnownHS—Triumphant · 51/102 | HS—Triumphant | 51/102 | Uncommon | €0.61 |
| Unown [?]Legends Awakened · 82/146 | Legends Awakened | 82/146 | Uncommon | €1.87 |
| Unown [A]Diamond & Pearl · 65/130 | Diamond & Pearl | 65/130 | Uncommon | €1.07 |
| Unown [B]Diamond & Pearl · 66/130 | Diamond & Pearl | 66/130 | Uncommon | €1.04 |
| Unown [B]Neo Revelation · 39/64 | Neo Revelation | 39/64 | Uncommon | €1.18 |
| Unown [C]Diamond & Pearl · 67/130 | Diamond & Pearl | 67/130 | Uncommon | €0.66 |
| Unown [C]Neo Destiny · 57/105 | Neo Destiny | 57/105 | Uncommon | €4.33 |
| Unown [D]Diamond & Pearl · 68/130 | Diamond & Pearl | 68/130 | Uncommon | €0.74 |
| Unown [D]Neo Discovery · 47/75 | Neo Discovery | 47/75 | Uncommon | €1.14 |
| Unown [E]Mysterious Treasures · 65/123 | Mysterious Treasures | 65/123 | Uncommon | €0.28 |
| Unown [F]Great Encounters · 56/106 | Great Encounters | 56/106 | Uncommon | €0.58 |
| Unown [F]Neo Discovery · 48/75 | Neo Discovery | 48/75 | Uncommon | €1.02 |
| Unown [G]Great Encounters · 57/106 | Great Encounters | 57/106 | Uncommon | €0.74 |
| Unown [J]Legends Awakened · 76/146 | Legends Awakened | 76/146 | Uncommon | €0.86 |
| Unown [K]Secret Wonders · 68/132 | Secret Wonders | 68/132 | Uncommon | €0.43 |
| Unown [M]Mysterious Treasures · 66/123 | Mysterious Treasures | 66/123 | Uncommon | €0.51 |
| Unown [M]Neo Discovery · 49/75 | Neo Discovery | 49/75 | Uncommon | $1.47 |
| Unown [N]Secret Wonders · 69/132 | Secret Wonders | 69/132 | Uncommon | €0.44 |
| Unown [N]Neo Discovery · 50/75 | Neo Discovery | 50/75 | Uncommon | €0.92 |
| Unown [O]Secret Wonders · 70/132 | Secret Wonders | 70/132 | Uncommon | €0.45 |
| Unown [P]Neo Destiny · 58/105 | Neo Destiny | 58/105 | Uncommon | €2.57 |
| Unown [Q]Majestic Dawn · 49/100 | Majestic Dawn | 49/100 | Uncommon | €0.78 |
| Unown [Q]Neo Destiny · 59/105 | Neo Destiny | 59/105 | Uncommon | €4.92 |
| Unown [R]Legends Awakened · 77/146 | Legends Awakened | 77/146 | Uncommon | €3.28 |
| Unown [T]Mysterious Treasures · 67/123 | Mysterious Treasures | 67/123 | Uncommon | €0.51 |
| Unown [U]Legends Awakened · 78/146 | Legends Awakened | 78/146 | Uncommon | €0.59 |
| Unown [U]Neo Discovery · 51/75 | Neo Discovery | 51/75 | Uncommon | $1.94 |
| Unown [V]Legends Awakened · 79/146 | Legends Awakened | 79/146 | Uncommon | €0.32 |
| Unown [W]Legends Awakened · 80/146 | Legends Awakened | 80/146 | Uncommon | €0.98 |
| Unown [X]Secret Wonders · 71/132 | Secret Wonders | 71/132 | Uncommon | €0.45 |
| Unown [Y]Legends Awakened · 81/146 | Legends Awakened | 81/146 | Uncommon | €1.06 |
| Unown [Y]Neo Revelation · 40/64 | Neo Revelation | 40/64 | Uncommon | €1.04 |
| Unown [Z]Secret Wonders · 72/132 | Secret Wonders | 72/132 | Uncommon | €0.63 |
| Unown [Z]Neo Destiny · 60/105 | Neo Destiny | 60/105 | Uncommon | €5.37 |
| Upper EnergyRising Rivals · 102/111 | Rising Rivals | 102/111 | Uncommon | €0.31 |
| UrbainAscended Heroes · 214/217 | Ascended Heroes | 214/217 | Uncommon | €0.04 |