| Throes of Chaos | 62 |
| Thought Vessel | 100 |
| Thornbite Staff | 99 |
| Thopter Foundry | 92 |
| Thespian's Stage | 113 |
| There // They're // Their | 537 |
| The Rack | 141 |
| The Many Deeds of Belzenlok | 550 |
| The Heron Moon | 612 |
| The Colossal Dreadmaw | 573 |
| Thassa's Oracle (2 variants) | 175 |
| Terry Pin, Turboturtle | 603 |
| Tendrils of Agony | 50 |
| Tenacious Pup | 262 |
| Temur Elevator | 619 |
| Temporary Truce | 22 |
| Temporal Manipulation (2 variants) | 174 |
| Teferi, Time Raveler | 91 |
| Teferi, Hero of Dominaria | 90 |
| Teferi, Druid of Argoth | 586 |
| Tax Taker | 524 |
| Tarnished Citadel | 112 |
| Swords to Plowshares (2 variants) | 153 |
| Sword of the Meek | 98 |
| Summoner's Pact | 74 |
| Subgoyf | 536 |
| Street Wraith | 49 |
| Stony Silence | 21 |
| Stone Drake | 602 |
| Stitcher's Supplier | 48 |
| Stifle (2 variants) | 173 |
| Static Orb (2 variants) | 234 |
| Starting Town NPC | 585 |
| Standstill (2 variants) | 172 |
| Squee, Goblin Nabob | 247 |
| Spuzzem Strategist | 584 |
| Spirit of the Labyrinth | 20 |
| Spike Weaver (2 variants) | 214 |
| Sphinx of the Steel Wind | 89 |
| Spell Pierce | 36 |
| Soul of Theros | 19 |
| Sol Ring (2 variants) | 233 |
| Snuff Out (2 variants) | 187 |
| Snow-Covered Wastes | 121 |
| Snow-Covered Swamp | 118 |
| Snow-Covered Plains | 116 |
| Snow-Covered Mountain | 119 |
| Snow-Covered Island | 117 |
| Snow-Covered Forest | 120 |
| Snap Judgment | 567 |