| Isolation at OrthancThe Lord of the Rings: Tales of Middle-earth · 508 | The Lord of the Rings: Tales of Middle-earth | 508 | Common | €0.18 |
| Isolation CellNew Phyrexia · 141 | New Phyrexia | 141 | Uncommon | $0.29 |
| Isolation ZoneOath of the Gatewatch · 22 | Oath of the Gatewatch | 22 | Common | €0.02 |
| Isolation ZoneThe List Tokens · OGW-22 | The List Tokens | OGW-22 | Common | €0.07 |
| Isperia's SkywatchReturn to Ravnica · 43 | Return to Ravnica | 43 | Common | €0.09 |
| Isperia, Supreme JudgeCommander 2020 · 217 | Commander 2020 | 217 | Mythic Rare | €0.21 |
| Isperia, Supreme JudgeRNA Guild Kit · 1 | RNA Guild Kit | 1 | Mythic Rare | $0.81 |
| Isperia, Supreme JudgeStarter Commander Decks · 4 | Starter Commander Decks | 4 | Mythic Rare | $0.27 |
| Isperia, Supreme JudgeReturn to Ravnica · 171 | Return to Ravnica | 171 | Mythic Rare | €0.39 |
| Isperia the InscrutableDissension · 114 | Dissension | 114 | Rare | €0.32 |
| 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 | €6.45 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty · 224 | Kamigawa: Neon Dynasty | 224 | Rare | €3.07 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty · 328 | Kamigawa: Neon Dynasty | 328 | Rare | €4.88 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty · 488 | Kamigawa: Neon Dynasty | 488 | Rare | $4.65 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty Promos · 224p | Kamigawa: Neon Dynasty Promos | 224p | Rare | €2.47 |
| Isshin, Two Heavens as OneKamigawa: Neon Dynasty Promos · 224s | Kamigawa: Neon Dynasty Promos | 224s | Rare | €7.08 |
| Isshin, Two Heavens as OneSecret Lair Drop Tokens · 2459 | Secret Lair Drop Tokens | 2459 | Rare | €4.68 |
| Isshin, Two Heavens as OneMagic Online Promos · 98083 | Magic Online Promos | 98083 | Rare | — |
| Isshin, Two Heavens as One // Isshin, Two Heavens as OneNeon Dynasty Art Series · 14 | Neon Dynasty Art Series | 14 | — | — |
| Isshin, Two Heavens as One // Isshin, Two Heavens as OneNeon Dynasty Art Series · 69 | Neon Dynasty Art Series | 69 | — | — |
| Istvan, Butcher of ElnMystery Booster Commander Edition · 14 | Mystery Booster Commander Edition | 14 | Rare | €3.29 |
| Isu the AbominableJumpstart 2022 · 12 | Jumpstart 2022 | 12 | Mythic Rare | €1.30 |
| Itazura, Lingering WickMystery Booster Commander Edition · 41 | Mystery Booster Commander Edition | 41 | Rare | €6.81 |
| It Came from Planet GlurgUnfinity · 169 | Unfinity | 169 | Mythic Rare | €0.39 |
| It Came from Planet GlurgUnfinity · 261 | Unfinity | 261 | Mythic Rare | $0.40 |
| It Came from Planet GlurgUnfinity · 455 | Unfinity | 455 | Mythic Rare | €1.06 |
| It Came from Planet GlurgUnfinity · 512 | Unfinity | 512 | Mythic Rare | $0.77 |
| It Doesn't Add UpMurders at Karlov Manor · 89 | Murders at Karlov Manor | 89 | Uncommon | €0.05 |
| It Doesn't Add UpMurders at Karlov Manor · 299 | Murders at Karlov Manor | 299 | Uncommon | €0.07 |
| Item CrateUnknown Event · CA02c | Unknown Event | CA02c | Common | — |
| Item ShopkeepFinal Fantasy · 142 | Final Fantasy | 142 | Common | €0.03 |
| Iterative AnalysisConspiracy · 6 | Conspiracy | 6 | Uncommon | €0.05 |
| Iterative AnalysisThe List Tokens · CNS-6 | The List Tokens | CNS-6 | Uncommon | $0.11 |
| Ith, High ArcanistThe List Tokens · TSP-241 | The List Tokens | TSP-241 | Rare | €0.31 |
| Ith, High ArcanistTime Spiral · 241 | Time Spiral | 241 | Rare | €0.17 |
| Ith, High ArcanistTime Spiral Remastered · 255 | Time Spiral Remastered | 255 | Rare | €0.12 |
| Ithilien KingfisherThe Lord of the Rings: Tales of Middle-earth · 58 | The Lord of the Rings: Tales of Middle-earth | 58 | Common | €0.03 |
| Ithilien KingfisherThe Lord of the Rings: Tales of Middle-earth · 509 | The Lord of the Rings: Tales of Middle-earth | 509 | Common | €0.22 |
| Ithilien KingfisherThe Hobbit Eternal · 177 | The Hobbit Eternal | 177 | Common | €0.54 |
| It'll Quench Ya!Avatar: The Last Airbender · 58 | Avatar: The Last Airbender | 58 | Common | €0.08 |
| It of the Horrid SwarmEldritch Moon · 8 | Eldritch Moon | 8 | Common | €0.08 |
| It of the Horrid SwarmInnistrad Remastered · 6 | Innistrad Remastered | 6 | Common | €0.02 |
| It of the Horrid SwarmInnistrad Remastered · 331 | Innistrad Remastered | 331 | Common | €0.08 |
| 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 | €9.91 |
| It That BetraysRise of the Eldrazi · 7 | Rise of the Eldrazi | 7 | Rare | €10.48 |
| It That BetraysSecret Lair Drop Tokens · 1176 | Secret Lair Drop Tokens | 1176 | Rare | €24.86 |