| Breaker of Armies | BFZ-3 |
| Breakthrough | TOR-26 |
| Breath of Darigaaz | INV-138 |
| Breath of Life | POR-10 |
| Breeding Pit | DDC-53 |
| Brenard, Ginger Sculptor | WOC-27 |
| Briar Patch | MMQ-232 |
| Briarhorn | DDR-3 |
| Bridge from Below | FUT-81 |
| Brightclimb Pathway // Grimclimb Pathway | ZNR-259 |
| Brightling | BBD-25 |
| Brightstone Ritual | ONS-191 |
| Brilliant Plan | GS1-17 |
| Brilliant Spectrum | BFZ-70 |
| Brimaz, King of Oreskos | BNG-5 |
| Brimstone Dragon | P02-92 |
| Brimstone Mage | ROE-137 |
| Brine Elemental | A25-47 |
| Brinelin, the Moon Kraken | CMR-60 |
| Bring Low | KTK-103 |
| Bringer of the Black Dawn | 5DN-43 |
| Brink of Madness | ULG-50 |
| Bristling Boar | M19-170 |
| Broken Bond | DOM-157 |
| Broken Wings | KHM-164 |
| Bronzeplate Boar | NEO-135 |
| Brood Monitor | BFZ-164 |
| Brood of Cockroaches | VIS-53 |
| Broodbirth Viper | C15-10 |
| Broodhatch Nantuko | ONS-250 |
| Broodhunter Wurm | BFZ-171 |
| Broodstar | MRD-31 |
| Brothers Yamazaki | CHK-160 |
| Brought Back | M20-9 |
| Browbeat | A25-123 |
| Bruenor Battlehammer | AFR-219 |
| Bruse Tarl, Roving Rancher | OTJ-198 |
| Brushland | BRO-259 |
| Brushland | M3C-324 |
| Brute Force | PLC-116 |
| Brute Strength | DDT-35 |
| Bruvac the Grandiloquent | JMP-10 |
| Bubbling Muck | UDS-54 |
| Bucknard's Everfull Purse | AFC-57 |
| Budoka Gardener // Dokai, Weaver of Life | CHK-202 |
| Built to Last | KLD-7 |
| Built to Smash | KLD-108 |
| Bulwark Giant | WAR-7 |
| Burden of Guilt | DKA-4 |
| Burgeoning | STH-102 |