| Bring Low | KTK-103 |
| Brinelin, the Moon Kraken | CMR-60 |
| Brine Elemental | A25-47 |
| Brimstone Mage | ROE-137 |
| Brimstone Dragon | P02-92 |
| Brimaz, King of Oreskos | BNG-5 |
| Brilliant Spectrum | BFZ-70 |
| Brilliant Plan | GS1-17 |
| Brightstone Ritual | ONS-191 |
| Brightling | BBD-25 |
| Brightclimb Pathway // Grimclimb Pathway | ZNR-259 |
| Bridge from Below | FUT-81 |
| Briarhorn | DDR-3 |
| Briar Patch | MMQ-232 |
| Brenard, Ginger Sculptor | WOC-27 |
| Breeding Pit | DDC-53 |
| Breath of Life | POR-10 |
| Breath of Darigaaz | INV-138 |
| Breakthrough | TOR-26 |
| Breaker of Armies | BFZ-3 |
| Brazen Wolves | EMN-122 |
| Brazen Buccaneers | XLN-134 |
| Brazen Borrower // Petty Theft | ELD-281 |
| Brass's Bounty | RIX-94 |
| Brand | USG-176 |
| Branchloft Pathway // Boulderloft Pathway | ZNR-258 |
| Bramblewood Paragon | MOR-115 |
| Brallin, Skyshark Rider | C20-4 |
| Brainstorm | A25-46 |
| Brainstorm | SS1-3 |
| Brain Weevil | DDJ-58 |
| Brain Freeze | SCG-29 |
| Braids, Conjurer Adept | PLC-36 |
| Braid of Fire | CSP-78 |
| Brago's Representative | CNS-14 |
| Brago, King Eternal | EMA-198 |
| Bow of Nylea | THS-153 |
| Bountiful Promenade | BBD-81 |
| Boundless Realms | M13-162 |
| Bounding Krasis | ORI-212 |
| Boulder Salvo | OGW-102 |
| Bottle Gnomes | TMP-278 |
| Bottle Gnomes | CM2-177 |
| Borrowing 100,000 Arrows | A25-45 |
| Borrowed Hostility | EMN-121 |
| Borrowed Grace | EMN-14 |
| Boros Reckoner | GK1-85 |
| Boros Guildgate | GRN-243 |
| Boros Elite | GK1-78 |
| Boros Challenger | GRN-156 |