Menace (This creature can't be blocked except by two or more creatures.)

If it's neither day nor night, it becomes day as Brimstone Vandal enters.

Whenever day becomes night or night becomes day, Brimstone Vandal deals 1 damage to each opponent.

Sacrifice Brindle Boar: You gain 4 life.

This spell costs less to cast for each enchantment you control.

Flash

When Brinebarrow Intruder enters, target creature an opponent controls gets -2/-0 until end of turn.

Counter target spell unless its controller pays .

Corrupted — Counter that spell instead if its controller has three or more poison counters.

Enchant creature or land

When enchanted permanent becomes tapped, destroy it.

Bristling Boar can't be blocked by more than one creature.

Destroy target artifact or enchantment. You may put a land card from your hand onto the battlefield.

Return Broken Fall to its owner's hand: Regenerate target creature.

When Brokers Hideout enters, sacrifice it. When you do, search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

When Brokers Veteran dies, put a shield counter on target creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

Equipped creature gets +2/+0.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

If you control an Eldrazi Spawn, create three 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add ." Otherwise, create one of those tokens.

At the beginning of your end step, if you descended this turn, create a 1/1 black Fungus creature token with "This creature can't block." (You descended if a permanent card was put into your graveyard from anywhere.)

: Brothers of Fire deals 1 damage to any target and 1 damage to you.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Target opponent loses 2 life. You gain 2 life.

: Look at the top card of your library.

: Reveal the top card of your library. If it's a land card, Brutal Deceiver gets +1/+0 and gains first strike until end of turn. Activate only once each turn.

Target creature gets +3/+1 and gains trample until end of turn.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

As Bubble Smuggler is turned face up, put four +1/+1 counters on it.

Put target instant or sorcery card from your graveyard on top of your library. (Then exile this card. You may cast the creature later from exile.)

Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional .

Whenever you cast a spell of a type showing on CARDNAME, put a counter over that type and draw a card. If all five types on CARDNAME have counters over them, sacrifice it and draw one more card. BOX artifact BOX creature BOX enchantment BOX instant BOX sorcery

Target creature gets +2/+2 until end of turn. If it's an artifact creature, it gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

At the beginning of your end step, if a creature died this turn, put a +1/+1 counter on Bulette.

When Bull Elephant enters, sacrifice it unless you return two Forests you control to their owner's hand.

Whenever Bull-Rush Bruiser attacks, if your team controls another Warrior, Bull-Rush Bruiser gains first strike until end of turn.

When Bulwark Giant enters, you gain 5 life.

When this creature enters, you may destroy target artifact.

Flash

Enchant creature

Enchanted creature has flying.

Enchant creature

: Tap enchanted creature.

When Burglar Rat enters, each opponent discards a card.

, Sacrifice Buried Treasure: Add one mana of any color.

, Exile Buried Treasure from your graveyard: Discover 5. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 5 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Burn the Accursed deals 5 damage to target creature and 2 damage to that creature's controller. If that creature would die this turn, exile it instead.

Burn Trail deals 3 damage to any target.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Burning Fields deals 5 damage to target opponent or planeswalker.

Whenever you cast a noncreature spell, Burning Prophet gets +1/+0 until end of turn, then scry 1.

Whenever Burning Sun Cavalry attacks or blocks while you control a Dinosaur, Burning Sun Cavalry gets +1/+1 until end of turn.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)

: Target creature can't block Burning-Tree Bloodscale this turn.

: Target creature blocks Burning-Tree Bloodscale this turn if able.

Riot (This creature enters with your choice of a +1/+1 counter or haste.)

Whenever Burning-Tree Vandal attacks, you may discard a card. If you do, draw a card.

As an additional cost to cast this spell, sacrifice a creature.

Add X mana in any combination of and/or , where X is the sacrificed creature's mana value.

Flying

Reinforce 2— (, Discard this card: Put two +1/+1 counters on target creature.)

Flash

When Burrog Befuddler enters, target creature an opponent controls gets -1/-0 until end of turn.

Kicker (You may pay an additional as you cast this spell.)

Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.

Creatures you control gain haste until end of turn. (They can attack and even if they just came under your control.)

Bursting Beebles can't be blocked as long as defending player controls two or more nonland permanents that share an artist.

, , Sacrifice another creature: You gain life equal to the sacrificed creature's toughness. Draw a card.

Target creature gets +3/+0 and gains lifelink until end of turn. Regenerate it. (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

Whenever you crank Buzz Buggy, target creature gets +2/+0 and gains trample until end of turn.

Threshold — , , Exile two cards from your graveyard: Target player discards a card. Activate only as a sorcery and only if seven or more cards are in your graveyard.