| Cackling Imp | DDC-41 |
| Cabal Therapy | EMA-83 |
| Cabal Pit | ODY-315 |
| Byway Courier | SOI-196 |
| By Force | AKH-123 |
| Butcher's Glee | IMA-84 |
| Butcher of Malakir | WWK-53 |
| Bushwhack | BRO-174 |
| Bushmeat Poacher | GN3-44 |
| Burst Lightning | MM2-109 |
| Burst Lightning | P10-8 |
| Burrenton Forge-Tender | LRW-7 |
| Burnished Hart | C15-248 |
| Burning-Tree Emissary | GK2-88 |
| Burning Prophet | WAR-117 |
| Burning Palm Efreet | MIR-161 |
| Burning Inquiry (2 variants) | M10-128 |
| Burning Cloak | POR-120 |
| Buried Ruin | 2XM-312 |
| Buried Alive | WTH-63 |
| Burgeoning | STH-102 |
| Burden of Guilt | DKA-4 |
| Bulwark Giant | WAR-7 |
| Built to Smash | KLD-108 |
| Built to Last | KLD-7 |
| Budoka Gardener // Dokai, Weaver of Life | CHK-202 |
| Bucknard's Everfull Purse | AFC-57 |
| Bubbling Muck | UDS-54 |
| Bruvac the Grandiloquent | JMP-10 |
| Brute Strength | DDT-35 |
| Brute Force | PLC-116 |
| Brushland | BRO-259 |
| Brushland | M3C-324 |
| Bruse Tarl, Roving Rancher | OTJ-198 |
| Bruenor Battlehammer | AFR-219 |
| Browbeat | A25-123 |
| Brought Back | M20-9 |
| Brothers Yamazaki | CHK-160 |
| Broodstar | MRD-31 |
| Broodhunter Wurm | BFZ-171 |
| Broodhatch Nantuko | ONS-250 |
| Broodbirth Viper | C15-10 |
| Brood of Cockroaches | VIS-53 |
| Brood Monitor | BFZ-164 |
| Bronzeplate Boar | NEO-135 |
| Broken Wings | KHM-164 |
| Broken Bond | DOM-157 |
| Bristling Boar | M19-170 |
| Brink of Madness | ULG-50 |
| Bringer of the Black Dawn | 5DN-43 |