| Inventors' Fair (2 variants) | 1735 |
| Invasion Plans | 7107 |
| Intruder Alarm (2 variants) | 229 |
| Inspiring Vantage (2 variants) | 1375 |
| Inspiring Vantage (2 variants) | 1605 |
| Inspiring Vantage (2 variants) | 1605★ |
| Inspiring Overseer | 1523 |
| Inspiring Call | 2328 |
| Inspiring Call (2 variants) | 2313 |
| Inquisition of Kozilek (2 variants) | 1152 |
| Inkshield (2 variants) | 1694 |
| Inkmoth Nexus | 45 |
| Ink-Eyes, Servant of Oni | 33 |
| Ink-Eyes, Servant of Oni (2 variants) | 2374 |
| Inferno Titan (2 variants) | 224 |
| Inferno of the Star Mounts | 1015 |
| Inevitable Betrayal (2 variants) | 1935 |
| Incarnation Technique (2 variants) | 1776 |
| Inalla, Archmage Ritualist | 1639 |
| Inalla, Archmage Ritualist | 1639★ |
| In the Trenches (2 variants) | 1729 |
| Imprisoned in the Moon (2 variants) | 1102 |
| Imperial Recruiter (4 variants) | 2244 |
| Impact Tremors (2 variants) | 313 |
| Impact Tremors (2 variants) | 1999 |
| Imp's Mischief (2 variants) | 2555 |
| Immerwolf (2 variants) | 809 |
| Ilharg, the Raze-Boar (2 variants) | 318 |
| Ignoble Hierarch | 906 |
| Idyllic Tutor (2 variants) | 1020 |
| Idyllic Tutor | 1636★ |
| Idyllic Tutor | 1636 |
| Icingdeath, Frost Tyrant | 1012b |
| Icingdeath, Frost Tongue | 1018 |
| Ice-Fang Coatl (2 variants) | 1225 |
| Ice-Fang Coatl (2 variants) | 171 |
| Ice Storm (2 variants) | 1745 |
| Hydroid Krasis | 1332 |
| Hydra | 1334 |
| Huntmaster of the Fells // Ravager of the Fells (2 variants) | 700 |
| Huntmaster of the Fells // Ravager of the Fells (2 variants) | 495 |
| Hunter's Insight (2 variants) | 2676 |
| Hullbreaker Horror (2 variants) | 2321 |
| Hullbreaker Horror | 2336 |
| Huatli, the Sun's Heart | 530 |
| Huatli, Radiant Champion (2 variants) | 1699 |
| Howltooth Hollow (2 variants) | 438 |
| Howling Mine (2 variants) | 177 |
| Howling Mine (2 variants) | 7046 |
| Howl of the Night Pack (2 variants) | 1610 |