Name: Boneyard Scourge Cost: 2BB Type: Creature -- Zombie Dragon Pow/Tgh: 4/3 Rules Text: Flying Whenever a Dragon you control dies while this card is in your graveyard, you may pay {1}{B}. If you do, return this card from your graveyard to the battlefield. Set/Rarity: Treasure Chest rare, Commander 2017 rare Price: $7.07

Name: Bontu the Glorified Cost: 2B Type: Legendary Creature -- God Pow/Tgh: 4/6 Rules Text: Menace, indestructible Bontu can't attack or block unless a creature died under your control this turn. {1}{B}, Sacrifice another creature: Scry 1. Each opponent loses 1 life and you gain 1 life. Set/Rarity: Amonkhet mythic, Amonkhet Invocations special, Amonkhet Promos mythic, Amonkhet Remastered mythic Price: $5.13

Name: Bontu's Last Reckoning Cost: 1BB Type: Sorcery Rules Text: Destroy all creatures. Lands you control don't untap during your next untap step. Set/Rarity: Hour of Devastation Promos rare, Hour of Devastation rare, Amonkhet Remastered rare Price: $0.53

Name: Bontu's Monument Cost: 3 Type: Legendary Artifact Rules Text: Black creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life. Set/Rarity: Amonkhet uncommon, Amonkhet Remastered uncommon, Dominaria United Commander uncommon, Aetherdrift Commander uncommon Price: $3.35

Name: Booby Trap Cost: 6 Type: Artifact Rules Text: As this artifact enters, choose an opponent and a card name other than a basic land card name. The chosen player reveals each card they draw. When the chosen player draws a card with the chosen name, sacrifice this artifact. If you do, this artifact deals 10 damage to that player. Set/Rarity: Tempest rare, Ninth Edition rare, Salvat 2005 rare Price: $0.39

Name: Book of Rass Cost: 6 Type: Artifact -- Book Rules Text: {2}, Pay 2 life: Draw a card. Set/Rarity: The Dark uncommon, Chronicles rare, Chronicles Foreign Black Border rare, Masters Edition IV uncommon Price: $0.46

Name: Boom Box Cost: 2 Type: Artifact Rules Text: {6}, {T}, Sacrifice this artifact: Destroy up to one target artifact, up to one target creature, and up to one target land. Set/Rarity: Outlaws of Thunder Junction uncommon Price: $0.17

Name: Boomerang, Blade Flinger Cost: 1B Type: Legendary Creature -- Human Villain Pow/Tgh: 1/3 Rules Text: Whenever Boomerang attacks, he deals 1 damage to each opponent and you gain 1 life. Set/Rarity: Marvel Super Heroes Commander common Price: $0.24

Name: Boompile Cost: 4 Type: Artifact Rules Text: {T}: Flip a coin. If you win the flip, destroy all nonland permanents. Set/Rarity: Commander 2016 rare, Treasure Chest rare, The List rare, Commander Masters rare Price: $0.58

Name: Boon Reflection Cost: 4W Type: Enchantment Rules Text: If you would gain life, you gain twice that much life instead. Set/Rarity: Shadowmoor rare, Double Masters rare Price: $12.85

Name: Boon of Emrakul Cost: 2B Type: Enchantment -- Aura Rules Text: Enchant creature Enchanted creature gets +3/-3. Set/Rarity: Eldritch Moon common, The List common Price: $0.06

Name: Boon of Erebos Cost: B Type: Instant Rules Text: Target creature gets +2/+0 until end of turn. Regenerate it. You lose 2 life. Set/Rarity: Theros common Price: $0.11

Name: Boon of Safety Cost: W Type: Instant Rules Text: Put a shield counter on target creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) Scry 1. Set/Rarity: Streets of New Capenna common Price: $0.25

Name: Boon of the Spirit Realm Cost: 3WW Type: Enchantment Rules Text: Constellation -- Whenever this enchantment or another enchantment you control enters, put a blessing counter on this enchantment. Creatures you control get +1/+1 for each blessing counter on this enchantment. Set/Rarity: Commander Masters rare Price: $7.12

Name: Boon-Bringer Valkyrie Cost: 3WW Type: Creature -- Angel Warrior Pow/Tgh: 4/4 Rules Text: Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following abilities until end of turn.) Flying, first strike, lifelink Set/Rarity: March of the Machine Promos rare, March of the Machine rare Price: $0.46

Name: Boonweaver Giant Cost: 6W Type: Creature -- Giant Monk Pow/Tgh: 4/4 Rules Text: When this creature enters, you may search your graveyard, hand, and/or library for an Aura card and put it onto the battlefield attached to this creature. If you search your library this way, shuffle. Set/Rarity: Magic 2015 uncommon, The List uncommon Price: $0.09

Name: Boot Nipper Cost: 1B Type: Creature -- Beast Pow/Tgh: 2/1 Rules Text: This creature enters with your choice of a deathtouch counter or a lifelink counter on it. Set/Rarity: Ikoria: Lair of Behemoths common Price: $0.19

Name: Border Guard Cost: 2W Type: Creature -- Human Soldier Pow/Tgh: 1/4 Rules Text: Set/Rarity: Portal common, Starter 1999 common Price: $0.16

Name: Border Patrol Cost: 4W Type: Creature -- Human Nomad Pow/Tgh: 1/6 Rules Text: Vigilance Set/Rarity: Judgment common Price: $0.17

Name: Boreal Griffin Cost: 3WW Type: Snow Creature -- Griffin Pow/Tgh: 3/2 Rules Text: Flying {S}: This creature gains first strike until end of turn. ({S} can be paid with one mana from a snow source.) Set/Rarity: Coldsnap common Price: $0.19