| Saheeli Rai | KLD-186 |
| Sagu Archer | KTK-146 |
| Sage's Reverie | C18-72 |
| Sage of Lat-Nam | DOM-64 |
| Sadistic Hypnotist | ODY-159 |
| Sadistic Augermage | DDM-52 |
| Sacred Rites | ODY-44 |
| Sacred Mesa | MIR-37 |
| Sacred Cat | AKH-27 |
| Sabertooth Wyvern | EXO-99 |
| Sabertooth Cobra | MIR-238 |
| Saber Ants | MMQ-267 |
| Ryusei, the Falling Star | ARC-45 |
| Ruthless Knave | XLN-119 |
| Ruthless Invasion | NPH-93 |
| Rustvale Bridge | MH2-253 |
| Rust Monster | AFR-161 |
| Rushing River | PLS-30 |
| Rush of Vitality | KLD-99 |
| Rush of Knowledge | SCG-49 |
| Rush of Adrenaline | SOI-177 |
| Rupture | NEM-97 |
| Runed Stalactite | LRW-260 |
| Runed Halo | M21-32 |
| Runeclaw Bear | M15-197 |
| Rune-Tail, Kitsune Ascendant // Rune-Tail's Essence (2 variants) | SOK-27 |
| Rune-Scarred Demon | IMA-106 |
| Rune of Protection: Lands | USG-39 |
| Rundvelt Hordemaster | DMU-142 |
| Run Away Together | CLB-92 |
| Run Amok | DOM-140 |
| Rumor Gatherer | SNC-29 |
| Rummaging Goblin | XLN-160 |
| Rukarumel, Biologist | CMM-711 |
| Ruinous Gremlin | KLD-128 |
| Ruination Guide | BFZ-64 |
| Ruin Rat | HOU-75 |
| Ruin Grinder | C21-57 |
| Ruin Crab | ZNR-75 |
| Ruby Medallion | MH3-295 |
| Rubblebelt Maaka | MM3-109 |
| Royal Trooper | BBD-104 |
| Rowan Kenrith | BBD-2 |
| Rout | INV-34 |
| Rout | C21-101 |
| Rotting Regisaur | M20-111 |
| Rotfeaster Maggot | M15-112 |
| Rosheen Meanderer | IMA-206 |
| Rosethorn Halberd | ELD-175 |
| Rosemane Centaur | GRN-197 |