| Underground RiverThe Brothers' War Promos Tokens · 267s | The Brothers' War Promos Tokens | 267s | Rare | €3.30 |
| Underground RiverWorld Championship Decks 2001 Tokens · ar350 | World Championship Decks 2001 Tokens | ar350 | Rare | $2.93 |
| Underground RiverWorld Championship Decks 2002 Tokens · cr350 | World Championship Decks 2002 Tokens | cr350 | Rare | $2.15 |
| Underground RiverWorld Championship Decks 1997 Tokens · js426 | World Championship Decks 1997 Tokens | js426 | Rare | $3.14 |
| Underground RiverWorld Championship Decks 1998 Tokens · bs362 | World Championship Decks 1998 Tokens | bs362 | Rare | $3.29 |
| Underground RiverMagic Online Promos · 105876 | Magic Online Promos | 105876 | Rare | — |
| Underground RiverReality Fracture Commander · 87 | Reality Fracture Commander | 87 | Rare | $0.68 |
| Underground SeaUnlimited Edition · 286 | Unlimited Edition | 286 | Rare | $1,276.66 |
| Underground SeaRevised Edition · 290 | Revised Edition | 290 | Rare | €772.22 |
| Underground Sea30th Anniversary Edition · 281 | 30th Anniversary Edition | 281 | Rare | €325.05 |
| Underground Sea30th Anniversary Edition · 578 | 30th Anniversary Edition | 578 | Rare | €672.84 |
| Underground SeaCollectors' Edition · 286 | Collectors' Edition | 286 | Rare | €478.40 |
| Underground SeaIntl. Collectors' Edition · 286 | Intl. Collectors' Edition | 286 | Rare | €467.72 |
| Underground SeaForeign Black Border · 290 | Foreign Black Border | 290 | Rare | €1,502.69 |
| Underground SeaLimited Edition Alpha · 285 | Limited Edition Alpha | 285 | Rare | €12,802.84 |
| Underground SeaLimited Edition Beta · 286 | Limited Edition Beta | 286 | Rare | €6,968.70 |
| Underground SeaSummer Magic / Edgar · 290 | Summer Magic / Edgar | 290 | Rare | €280.00 |
| Underground SeaMasters Edition IV · 256 | Masters Edition IV | 256 | Rare | — |
| Underground SeaMasters Edition II · 240 | Masters Edition II | 240 | Rare | — |
| Underground SeaVintage Masters · 323 | Vintage Masters | 323 | Rare | — |
| Underground SeaMagic Online Promos · 43624 | Magic Online Promos | 43624 | Rare | — |
| Undergrowth StadiumCommander Legends · 359 | Commander Legends | 359 | Rare | $6.57 |
| Undergrowth StadiumCommander Masters · 435 | Commander Masters | 435 | Rare | $7.34 |
| Undergrowth StadiumCommander Masters · 620 | Commander Masters | 620 | Rare | €14.39 |
| Undergrowth StadiumCommander Masters · 666 | Commander Masters | 666 | Rare | €10.91 |
| Undergrowth StadiumCommander Legends · 714 | Commander Legends | 714 | Rare | €13.42 |
| Undergrowth StadiumTeenage Mutant Ninja Turtles Eternal · 80 | Teenage Mutant Ninja Turtles Eternal | 80 | Rare | €4.12 |
| Undergrowth StadiumMagic Online Promos · 85950 | Magic Online Promos | 85950 | Rare | — |
| UndermineDuel Decks: Ajani vs. Nicol Bolas · 62 | Duel Decks: Ajani vs. Nicol Bolas | 62 | Rare | €3.84 |
| UndermineInvasion · 282 | Invasion | 282 | Rare | €4.21 |
| UndermineStarter Commander Decks · 254 | Starter Commander Decks | 254 | Rare | $1.76 |
| UndermineWorld Championship Decks 2001 Tokens · ar282 | World Championship Decks 2001 Tokens | ar282 | Rare | €2.15 |
| Undermountain AdventurerCommander Legends: Battle for Baldur's Gate · 260 | Commander Legends: Battle for Baldur's Gate | 260 | Rare | $0.36 |
| Undermountain AdventurerCommander Legends: Battle for Baldur's Gate · 594 | Commander Legends: Battle for Baldur's Gate | 594 | Rare | $0.37 |
| Undermountain AdventurerBattle for Baldur's Gate Promos · 260s | Battle for Baldur's Gate Promos | 260s | Rare | €1.24 |
| Underworld BreachMystery Booster 2 Tokens · 200 | Mystery Booster 2 Tokens | 200 | Rare | €6.77 |
| Underworld BreachTheros Beyond Death Promos · 161p | Theros Beyond Death Promos | 161p | Rare | €6.63 |
| Underworld BreachTheros Beyond Death Promos · 161s | Theros Beyond Death Promos | 161s | Rare | €17.08 |
| Underworld BreachSpecial Guests · 9 | Special Guests | 9 | Rare | €17.68 |
| Underworld BreachTheros Beyond Death · 161 | Theros Beyond Death | 161 | Rare | €7.29 |
| Underworld BreachTheros Beyond Death · 324 | Theros Beyond Death | 324 | Rare | €11.35 |
| Underworld BreachSecret Lair Drop Tokens · 2040 | Secret Lair Drop Tokens | 2040 | Rare | €26.57 |
| Underworld BreachSecret Lair Drop Tokens · 2045 | Secret Lair Drop Tokens | 2045 | Rare | $83.19 |
| Underworld BreachMagic Online Promos · 79977 | Magic Online Promos | 79977 | Rare | — |
| Underworld ConnectionsCommander 2015 · 138 | Commander 2015 | 138 | Rare | €0.20 |
| Underworld ConnectionsCommander 2017 · 128 | Commander 2017 | 128 | Rare | €0.33 |
| Underworld ConnectionsDuel Decks: Jace vs. Vraska · 73 | Duel Decks: Jace vs. Vraska | 73 | Rare | $0.32 |
| Underworld ConnectionsWizards Play Network 2024 · 9 | Wizards Play Network 2024 | 9 | Rare | €0.30 |
| Underworld ConnectionsReturn to Ravnica · 83 | Return to Ravnica | 83 | Rare | $0.32 |
| Underworld ConnectionsCrimson Vow Commander · 138 | Crimson Vow Commander | 138 | Rare | €0.37 |