| Trial and ErrorMystery Booster Playtest Cards 2021 · 68 | Mystery Booster Playtest Cards 2021 | 68 | Rare | €0.22 |
| Trial of a Time LordDoctor Who · 29 | Doctor Who | 29 | Rare | €0.31 |
| Trial of a Time LordDoctor Who · 634 | Doctor Who | 634 | Rare | €3.81 |
| Triangle of WarVisions · 158 | Visions | 158 | Rare | $1.32 |
| Triarch StalkerWarhammer 40,000 Commander · 67 | Warhammer 40,000 Commander | 67 | Rare | €0.23 |
| Triarch StalkerWarhammer 40,000 Commander · 67★ | Warhammer 40,000 Commander | 67★ | Rare | $0.81 |
| Triassic EggChronicles Foreign Black Border · 110 | Chronicles Foreign Black Border | 110 | Rare | €3.77 |
| Triassic EggChronicles · 110 | Chronicles | 110 | Rare | €0.41 |
| Triassic EggLegends · 297 | Legends | 297 | Rare | €7.84 |
| Triassic EggMasters Edition IV · 235 | Masters Edition IV | 235 | Rare | — |
| Tribal ForcemageLegions · 142 | Legions | 142 | Rare | $0.56 |
| Tribal GolemOnslaught · 311 | Onslaught | 311 | Rare | $0.22 |
| Tributary InstructorThe Lost Caverns of Ixalan Commander · 64 | The Lost Caverns of Ixalan Commander | 64 | Rare | $0.39 |
| Tributary InstructorThe Lost Caverns of Ixalan Commander · 96 | The Lost Caverns of Ixalan Commander | 96 | Rare | €0.09 |
| Tribute MageMagic Online Promos · 91249 | Magic Online Promos | 91249 | Rare | — |
| Tribute to Horobi // Echo of Death's WailKamigawa: Neon Dynasty · 124 | Kamigawa: Neon Dynasty | 124 | Rare | €0.17 |
| Tribute to Horobi // Echo of Death's WailKamigawa: Neon Dynasty · 356 | Kamigawa: Neon Dynasty | 356 | Rare | €0.42 |
| Tribute to Horobi // Echo of Death's WailKamigawa: Neon Dynasty · 462 | Kamigawa: Neon Dynasty | 462 | Rare | $0.24 |
| Tribute to Horobi // Echo of Death's WailKamigawa: Neon Dynasty Promos · 124s | Kamigawa: Neon Dynasty Promos | 124s | Rare | €0.40 |
| Tribute to Horobi // Echo of Death's WailMagic Online Promos · 97969 | Magic Online Promos | 97969 | Rare | — |
| Tribute to the World TreeMarch of the Machine · 211 | March of the Machine | 211 | Rare | €12.90 |
| Tribute to the World TreeMarch of the Machine · 373 | March of the Machine | 373 | Rare | €12.11 |
| Tribute to the World TreeMarch of the Machine Promos · 211p | March of the Machine Promos | 211p | Rare | €9.87 |
| Tribute to the World TreeMarch of the Machine Promos · 211s | March of the Machine Promos | 211s | Rare | €12.24 |
| TrickbindSecret Lair Drop Tokens · 1774 | Secret Lair Drop Tokens | 1774 | Rare | €6.31 |
| TrickbindTime Spiral · 88 | Time Spiral | 88 | Rare | €4.34 |
| TrinisphereDarksteel · 154 | Darksteel | 154 | Rare | €19.67 |
| Trinket MageWizards Play Network 2025 · 8 | Wizards Play Network 2025 | 8 | Rare | €0.32 |
| Triple ThreatUnknown Event · RR13b | Unknown Event | RR13b | Rare | $24.00 |
| Triple TriadFinal Fantasy · 166 | Final Fantasy | 166 | Rare | €0.33 |
| Triple TriadFinal Fantasy · 340 | Final Fantasy | 340 | Rare | €1.17 |
| Triple TriadFinal Fantasy Promos · 166s | Final Fantasy Promos | 166s | Rare | €3.40 |
| Triplicate TitanCommander 2021 · 79 | Commander 2021 | 79 | Rare | $1.09 |
| Triplicate TitanCommander 2021 · 406 | Commander 2021 | 406 | Rare | €4.44 |
| Triplicate TitanAetherdrift Commander · 143 | Aetherdrift Commander | 143 | Rare | $0.38 |
| Triplicate TitanThe List Tokens · C21-79 | The List Tokens | C21-79 | Rare | €1.08 |
| Triplicate TitanArena Anthology 2 · 22 | Arena Anthology 2 | 22 | Rare | — |
| Triplicate TitanMagic Online Promos · 90334 | Magic Online Promos | 90334 | Rare | — |
| Tri-Sentinel, Act of VengeanceMarvel Super Heroes Commander · 115 | Marvel Super Heroes Commander | 115 | Rare | €0.38 |
| Tri-Sentinel, Act of VengeanceMarvel Super Heroes Commander · 456 | Marvel Super Heroes Commander | 456 | Rare | €1.71 |
| TriskaidekaphileBloomburrow Commander · 178 | Bloomburrow Commander | 178 | Rare | €0.50 |
| TriskaidekaphileInnistrad: Double Feature · 81 | Innistrad: Double Feature | 81 | Rare | €1.01 |
| TriskaidekaphileInnistrad: Midnight Hunt · 81 | Innistrad: Midnight Hunt | 81 | Rare | €0.61 |
| TriskaidekaphileInnistrad: Midnight Hunt · 342 | Innistrad: Midnight Hunt | 342 | Rare | €1.27 |
| TriskaidekaphileInnistrad: Midnight Hunt · 386 | Innistrad: Midnight Hunt | 386 | Rare | €0.27 |
| TriskaidekaphileInnistrad: Midnight Hunt Promos · 81p | Innistrad: Midnight Hunt Promos | 81p | Rare | €0.55 |
| TriskaidekaphileInnistrad: Midnight Hunt Promos · 81s | Innistrad: Midnight Hunt Promos | 81s | Rare | €0.83 |
| TriskaidekaphileSecret Lair Drop Tokens · 1829 | Secret Lair Drop Tokens | 1829 | Rare | €6.43 |
| TriskaidekaphileMagic Online Promos · 93922 | Magic Online Promos | 93922 | Rare | — |
| TriskaidekaphileMagic Online Promos · 93926 | Magic Online Promos | 93926 | Rare | — |