| Rootwater Depths | TMP-323 |
| Roots | EMA-183 |
| Rootrunner | CHK-237 |
| Rootha, Mercurial Artist | STX-227 |
| Rootbound Crag | M10-227 |
| Rootborn Defenses | MM3-21 |
| Root Out | SOI-224 |
| Roon of the Hidden Realm | CMA-190 |
| Rooftop Storm | ISD-71 |
| Rolling Thunder | BFZ-154 |
| Rogue's Passage | UMA-250 |
| Rogue's Passage | C17-272 |
| Rock Slide | VIS-92 |
| Roast | DTK-151 |
| Roar of the Wurm | DDS-49 |
| Rix Maadi, Dungeon Palace | C19-269 |
| Riverwheel Aerialists | IMA-71 |
| Riverglide Pathway // Lavaglide Pathway | ZNR-264 |
| River Serpent | AKH-66 |
| River Hoopoe | HOU-143 |
| River Darter | RIX-47 |
| River Boa | ZEN-180 |
| River Bear | P02-144 |
| Rivals' Duel | PCA-51 |
| Rith, the Awakener | DDE-48 |
| Rites of Initiation | ODY-217 |
| Rite of the Serpent | KTK-86 |
| Rite of Replication | C14-122 |
| Rite of Replication | ZEN-61 |
| Rite of Replication | C21-128 |
| Rite of Flame | SS3-7 |
| Rite of Consumption | SHM-76 |
| Risky Move | ONS-223 |
| Rishadan Footpad | MMQ-94 |
| Rishadan Cutpurse | MMQ-93 |
| Rishadan Brigand | MMQ-92 |
| Risen Reef | M20-217 |
| Rise of the Ants | MID-196 |
| Rise from the Tides | GN2-23 |
| Rise Again | M21-119 |
| Riptide Laboratory | ONS-322 |
| Riptide Director | LGN-50 |
| Riptide Crab | BBD-228 |
| Riparian Tiger | KLD-167 |
| Ringwarden Owl | ORI-68 |
| Ring of Three Wishes | M14-216 |
| Rimrock Knight // Boulder Rush | ELD-137 |
| Rimewood Falls | KHM-266 |
| Righteous Valkyrie | KHM-24 |
| Righteous Cause | CMA-21 |