| River Hoopoe | HOU-143 |
| River Serpent | AKH-66 |
| Riverglide Pathway // Lavaglide Pathway | ZNR-264 |
| Riverwheel Aerialists | IMA-71 |
| Rix Maadi, Dungeon Palace | C19-269 |
| Roar of the Wurm | DDS-49 |
| Roast | DTK-151 |
| Rock Slide | VIS-92 |
| Rogue's Passage | UMA-250 |
| Rogue's Passage | C17-272 |
| Rolling Thunder | BFZ-154 |
| Rooftop Storm | ISD-71 |
| Roon of the Hidden Realm | CMA-190 |
| Root Out | SOI-224 |
| Rootborn Defenses | MM3-21 |
| Rootbound Crag | M10-227 |
| Rootha, Mercurial Artist | STX-227 |
| Rootrunner | CHK-237 |
| Roots | EMA-183 |
| Rootwater Depths | TMP-323 |
| Rosemane Centaur | GRN-197 |
| Rosethorn Halberd | ELD-175 |
| Rosheen Meanderer | IMA-206 |
| Rotfeaster Maggot | M15-112 |
| Rotting Regisaur | M20-111 |
| Rout | INV-34 |
| Rout | C21-101 |
| Rowan Kenrith | BBD-2 |
| Royal Trooper | BBD-104 |
| Rubblebelt Maaka | MM3-109 |
| Ruby Medallion | MH3-295 |
| Ruin Crab | ZNR-75 |
| Ruin Grinder | C21-57 |
| Ruin Rat | HOU-75 |
| Ruination Guide | BFZ-64 |
| Ruinous Gremlin | KLD-128 |
| Rukarumel, Biologist | CMM-711 |
| Rummaging Goblin | XLN-160 |
| Rumor Gatherer | SNC-29 |
| Run Amok | DOM-140 |
| Run Away Together | CLB-92 |
| Rundvelt Hordemaster | DMU-142 |
| Rune of Protection: Lands | USG-39 |
| Rune-Scarred Demon | IMA-106 |
| Rune-Tail, Kitsune Ascendant // Rune-Tail's Essence (2 variants) | SOK-27 |
| Runeclaw Bear | M15-197 |
| Runed Halo | M21-32 |
| Runed Stalactite | LRW-260 |
| Rupture | NEM-97 |
| Rush of Adrenaline | SOI-177 |