| Isochron ScepterFriday Night Magic 2008 · 11 | Friday Night Magic 2008 | 11 | Rare | €24.34 |
| Isochron ScepterSecret Lair Countdown · 9 | Secret Lair Countdown | 9 | Rare | €5.77 |
| Isochron ScepterSecret Lair Countdown · 36 | Secret Lair Countdown | 36 | Rare | €18.53 |
| IsolateCore Set 2019 · 17 | Core Set 2019 | 17 | Rare | $0.16 |
| IsolateCore Set 2019 Promos · 17s | Core Set 2019 Promos | 17s | Rare | $0.56 |
| IsolatePioneer Challenger Decks 2021 · 3 | Pioneer Challenger Decks 2021 | 3 | Rare | €0.03 |
| Isolated ChapelDominaria Remastered · 249 | Dominaria Remastered | 249 | Rare | $0.86 |
| Isolated ChapelDominaria · 241 | Dominaria | 241 | Rare | $0.61 |
| Isolated ChapelAetherdrift Commander · 162 | Aetherdrift Commander | 162 | Rare | $0.36 |
| Isolated ChapelDominaria Remastered · 397 | Dominaria Remastered | 397 | Rare | $1.12 |
| Isolated ChapelFinal Fantasy Commander · 405 | Final Fantasy Commander | 405 | Rare | $0.24 |
| Isolated ChapelInnistrad · 242 | Innistrad | 242 | Rare | €1.20 |
| Isolated ChapelThe Lost Caverns of Ixalan Commander · 337 | The Lost Caverns of Ixalan Commander | 337 | Rare | $0.39 |
| Isolated ChapelTales of Middle-earth Commander · 318 | Tales of Middle-earth Commander | 318 | Rare | $0.57 |
| Isolated ChapelModern Event Deck 2014 · 16 | Modern Event Deck 2014 | 16 | Rare | €0.66 |
| Isolated ChapelOutlaws of Thunder Junction Commander · 301 | Outlaws of Thunder Junction Commander | 301 | Rare | €0.84 |
| Isolated ChapelDominaria Promos · 241p | Dominaria Promos | 241p | Rare | €3.99 |
| Isolated ChapelDominaria Promos · 241s | Dominaria Promos | 241s | Rare | $3.34 |
| Isolated ChapelFallout · 269 | Fallout | 269 | Rare | $0.47 |
| Isolated ChapelFallout · 500 | Fallout | 500 | Rare | €4.76 |
| Isolated ChapelFallout · 797 | Fallout | 797 | Rare | €4.28 |
| Isolated ChapelFallout · 1028 | Fallout | 1028 | Rare | €7.17 |
| Isolated ChapelSecrets of Strixhaven Commander · 382 | Secrets of Strixhaven Commander | 382 | Rare | $0.38 |
| Isolated ChapelSecret Lair Drop Tokens · 739 | Secret Lair Drop Tokens | 739 | Rare | €25.52 |
| Isolated ChapelTarkir: Dragonstorm Commander · 373 | Tarkir: Dragonstorm Commander | 373 | Rare | $0.38 |
| Isolated ChapelAlchemy: Edge of Eternities · 36 | Alchemy: Edge of Eternities | 36 | Rare | — |
| Isolated ChapelReality Fracture Commander · 74 | Reality Fracture Commander | 74 | Rare | $0.30 |
| Isolated WatchtowerCommander 2018 · 59 | Commander 2018 | 59 | Rare | €1.08 |
| Isolated WatchtowerTreasure Chest · 70707 | Treasure Chest | 70707 | Rare | — |
| Isperia the InscrutableDissension · 114 | Dissension | 114 | Rare | €0.24 |
| Isperia the InscrutableRNA Guild Kit · 13 | RNA Guild Kit | 13 | Rare | €0.25 |
| Isshin, Two Heavens as OneFinal Fantasy: Through the Ages · 54 | Final Fantasy: Through the Ages | 54 | Rare | €6.67 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty · 224 | Kamigawa: Neon Dynasty | 224 | Rare | €2.82 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty · 328 | Kamigawa: Neon Dynasty | 328 | Rare | €4.72 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty · 488 | Kamigawa: Neon Dynasty | 488 | Rare | $4.53 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty Promos · 224p | Kamigawa: Neon Dynasty Promos | 224p | Rare | €2.77 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty Promos · 224s | Kamigawa: Neon Dynasty Promos | 224s | Rare | €6.73 |
| Isshin, Two Heavens as OneSecret Lair Drop Tokens · 2459 | Secret Lair Drop Tokens | 2459 | Rare | €4.69 |
| Isshin, Two Heavens as OneMagic Online Promos · 98083 | Magic Online Promos | 98083 | Rare | — |
| Ith, High ArcanistThe List Tokens · TSP-241 | The List Tokens | TSP-241 | Rare | €0.31 |
| Ith, High ArcanistTime Spiral · 241 | Time Spiral | 241 | Rare | €0.21 |
| Ith, High ArcanistTime Spiral Remastered · 255 | Time Spiral Remastered | 255 | Rare | €0.11 |
| It's Clobberin' Time!Marvel Super Heroes Commander · 66 | Marvel Super Heroes Commander | 66 | Rare | €0.22 |
| It's Clobberin' Time!Marvel Super Heroes Commander · 381 | Marvel Super Heroes Commander | 381 | Rare | $0.71 |
| It That BetraysCommander Masters · 805 | Commander Masters | 805 | Rare | €10.00 |
| It That BetraysDuel Decks: Zendikar vs. Eldrazi Tokens · 43 | Duel Decks: Zendikar vs. Eldrazi Tokens | 43 | Rare | €10.34 |
| It That BetraysRise of the Eldrazi · 7 | Rise of the Eldrazi | 7 | Rare | €11.22 |
| It That BetraysSecret Lair Drop Tokens · 1176 | Secret Lair Drop Tokens | 1176 | Rare | €24.86 |
| It That BetraysSecret Lair Drop Tokens · 2673 | Secret Lair Drop Tokens | 2673 | Rare | $11.59 |
| Ivory GargoyleAlliances · 5 | Alliances | 5 | Rare | $0.91 |