| Battlemage's BracersMagic Online Promos · 90118 | Magic Online Promos | 90118 | Rare | — |
| Battle MyrsphereUnknown Event · RA07a | Unknown Event | RA07a | Rare | $66.69 |
| Battle of Frost and FireKaldheim · 204 | Kaldheim | 204 | Rare | €0.14 |
| Battle of Frost and FireKaldheim Promos · 204p | Kaldheim Promos | 204p | Rare | €0.19 |
| Battle of Frost and FireKaldheim Promos · 204s | Kaldheim Promos | 204s | Rare | $0.63 |
| Battle of Hoover DamFallout · 11 | Fallout | 11 | Rare | €0.26 |
| Battle of Hoover DamFallout · 364 | Fallout | 364 | Rare | $0.45 |
| Battle of Hoover DamFallout · 539 | Fallout | 539 | Rare | €0.66 |
| Battle of Hoover DamFallout · 892 | Fallout | 892 | Rare | €0.86 |
| Battle of WitsNinth Edition · 65 | Ninth Edition | 65 | Rare | €0.63 |
| Battle of WitsNinth Edition · 65★ | Ninth Edition | 65★ | Rare | $1.08 |
| Battle of WitsMagic 2013 · 44 | Magic 2013 | 44 | Rare | €0.36 |
| Battle of WitsOdyssey · 69 | Odyssey | 69 | Rare | €2.80 |
| Battle of WitsSecret Lair Drop Tokens · 1446 | Secret Lair Drop Tokens | 1446 | Rare | €11.32 |
| Battle of WitsThe List Tokens · M13-44 | The List Tokens | M13-44 | Rare | €0.81 |
| Battle SquadronMercadian Masques · 174 | Mercadian Masques | 174 | Rare | €0.58 |
| Battletide AlchemistMorningtide · 2 | Morningtide | 2 | Rare | €0.71 |
| Batwing BrumeSecret Lair Drop Tokens · 2469 | Secret Lair Drop Tokens | 2469 | Rare | €16.70 |
| Baxter BuildingSecret Lair Drop Tokens · 2626 | Secret Lair Drop Tokens | 2626 | Rare | $1.99 |
| Baxter, Fly in the OintmentTeenage Mutant Ninja Turtles Eternal · 10 | Teenage Mutant Ninja Turtles Eternal | 10 | Rare | €0.22 |
| Bayek of SiwaAssassin's Creed · 50 | Assassin's Creed | 50 | Rare | $0.36 |
| Bayek of SiwaAssassin's Creed · 142 | Assassin's Creed | 142 | Rare | $2.12 |
| Bayek of SiwaAssassin's Creed · 231 | Assassin's Creed | 231 | Rare | €0.88 |
| Baylen, the HaymakerBloomburrow · 205 | Bloomburrow | 205 | Rare | €0.60 |
| Baylen, the HaymakerBloomburrow · 345 | Bloomburrow | 345 | Rare | $407.81 |
| Baylen, the HaymakerBloomburrow Promos · 205p | Bloomburrow Promos | 205p | Rare | €0.58 |
| Baylen, the HaymakerBloomburrow Promos · 205s | Bloomburrow Promos | 205s | Rare | €3.89 |
| Baylen, the HaymakerSecret Lair Drop Tokens · 2377 | Secret Lair Drop Tokens | 2377 | Rare | €18.97 |
| BayouUnlimited Edition · 279 | Unlimited Edition | 279 | Rare | €585.25 |
| BayouRevised Edition · 283 | Revised Edition | 283 | Rare | €279.14 |
| Bayou30th Anniversary Edition · 274 | 30th Anniversary Edition | 274 | Rare | €218.65 |
| Bayou30th Anniversary Edition · 571 | 30th Anniversary Edition | 571 | Rare | €259.29 |
| BayouCollectors' Edition · 279 | Collectors' Edition | 279 | Rare | €187.67 |
| BayouIntl. Collectors' Edition · 279 | Intl. Collectors' Edition | 279 | Rare | €168.69 |
| BayouForeign Black Border · 283 | Foreign Black Border | 283 | Rare | €524.50 |
| BayouLimited Edition Alpha · 278 | Limited Edition Alpha | 278 | Rare | €3,585.49 |
| BayouLimited Edition Beta · 279 | Limited Edition Beta | 279 | Rare | €2,767.40 |
| BayouSummer Magic / Edgar · 283 | Summer Magic / Edgar | 283 | Rare | — |
| BayouMasters Edition III · 204 | Masters Edition III | 204 | Rare | — |
| BayouMasters Edition IV · 242 | Masters Edition IV | 242 | Rare | — |
| BayouVintage Masters · 293 | Vintage Masters | 293 | Rare | — |
| BayouMagic Online Promos · 43604 | Magic Online Promos | 43604 | Rare | — |
| Bazaar of BaghdadMasters Edition III · 205 | Masters Edition III | 205 | Rare | — |
| Bazaar of WondersMirage · 55 | Mirage | 55 | Rare | €0.87 |
| Bazaar TrademageModern Horizons · 41 | Modern Horizons | 41 | Rare | €0.15 |
| Bazaar TrademageJumpstart: Historic Horizons · 169 | Jumpstart: Historic Horizons | 169 | Rare | — |
| Bazaar TraderWorldwake · 72 | Worldwake | 72 | Rare | €5.37 |
| Beacon of CreationFifth Dawn · 82 | Fifth Dawn | 82 | Rare | €2.00 |
| Beacon of DestinyLegions · 5 | Legions | 5 | Rare | €0.30 |
| Beacon of DestructionTenth Edition · 189 | Tenth Edition | 189 | Rare | €0.11 |