At the beginning of each opponent's upkeep, exile all cards from your hand face down.

At the beginning of your upkeep, return all cards you own exiled with Bottled Cloister to your hand, then draw a card.

(<b>D</b> is a land drop. You may give up one potential land drop this turn to pay for <b>D</b>.)

Whenever Boulder Jockey attacks, you may pay <b>D</b>. If you do, create a 3/3 colorless Construct artifact creature token named Boulder that's tapped and attacking. Sacrifice that token at the beginning of the next end step.

Surge (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)

Boulder Salvo deals 4 damage to target creature.

Boulderfall deals 5 damage divided as you choose among any number of targets.

Visit — Return a creature you don't control with the lowest toughness among creatures you don't control to its owner's hand. (If multiple creatures are tied, choose any one of them.)

Lights — 2, 6

Visit — Return a creature you don't control with the lowest toughness among creatures you don't control to its owner's hand. (If multiple creatures are tied, choose any one of them.)

Lights — 4, 6

This spell costs less to cast if it targets a black permanent.

Bouncer's Beatdown deals X damage to target creature or planeswalker, where X is the greatest power among creatures you control. If that creature or planeswalker would die this turn, exile it instead.

Enchant creature

Enchanted creature can't attack, block, or transform.

Sacrifice another permanent: Attach Bound by Moonsilver to target creature. Activate only as a sorcery and only once each turn.

Whenever Bounding Felidar attacks while saddled, put a +1/+1 counter on each other creature you control. You gain 1 life for each of those creatures.

Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Search your library for up to X basic land cards, where X is the number of lands you control, put them onto the battlefield tapped, then shuffle.

You gain 1 life for each land you control.

: Add one mana of any color.

, : Put a bounty counter on target creature. Activate only as a sorcery.

Whenever a creature with a bounty counter on it dies, each of its controller's opponents draws a card and gains 2 life.

Reveal the top six cards of your library. You may put up to one land card from among them onto the battlefield tapped and up to one Elf card from among them into your hand. Put the rest on the bottom of your library in a random order.

Creatures with flying can't block creatures you control.

Whenever a creature you control enters, it fights up to one target creature you don't control with the same mana value.

: Create a Treasure token. Activate only if you control a creature that fought this turn.

Return target creature to its owner's hand. If it was tapped, create a Map token. (It's an artifact with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

When Brackwater Elemental attacks or blocks, sacrifice it at the beginning of the next end step.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

While voting, you get an additional vote. (The votes can be for different choices or for the same choice.)

Braided Net enters with three net counters on it.

, Remove a net counter from Braided Net: Tap another target nonland permanent. Its activated abilities can't be activated for as long as it remains tapped.

Craft with artifact

At the beginning of your end step, you may sacrifice an artifact, creature, enchantment, land, or planeswalker. If you do, each opponent may sacrifice a permanent of their choice that shares a card type with it. For each opponent who doesn't, that player loses 2 life and you draw a card.

At the beginning of each player's upkeep, that player may put an artifact, creature, or land card from their hand onto the battlefield.

: You gain 1 life.

Target player mills three cards.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

, : Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost.

, , Remove X charge counters from Brain in a Jar: Scry X.

Choose a nonland card name. Target player reveals their hand. That player discards a card with that name. If they can't, you draw a card.

Target opponent reveals their hand. You choose a card from it. That player discards that card.

Draw a card.

Destroy target creature that isn't enchanted. It can't be regenerated.

Transmute (, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

, , Sacrifice Brainstone: Draw three cards, then put two cards from your hand on top of your library in any order.

Draw four cards, then put two cards from your hand on top of your library in any order.

Partner with Shabraz, the Skyshark (When this creature enters, target player may put Shabraz into their hand from their library, then shuffle.)

Whenever you discard a card, put a +1/+1 counter on Brallin, Skyshark Rider and it deals 1 damage to each opponent.

: Target Shark gains trample until end of turn.

Whenever Bramble Creeper attacks, it gets +5/+0 until end of turn.

: Add .

, , Discard a card: Return Bramble Familiar to its owner's hand.

Reach, trample

When Bramble Wurm enters, you gain 5 life.

, Exile Bramble Wurm from your graveyard: You gain 5 life.

: Bramblefort Fink has base power and toughness 10/10 until end of turn. Activate only if you control an Oko planeswalker.

Whenever you expend 4, Raccoons you control get +1/+1 and gain vigilance until end of turn. (You expend 4 as you spend your fourth total mana to cast spells during a turn.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Reach

Branch of Boseiju gets +1/+1 for each land you control.

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on that creature instead.

Trample

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Enchant creature

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Enchanted creature's controller can't cast creature spells.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Branded Howler.

Indestructible

Whenever Brash Taunter is dealt damage, it deals that much damage to target opponent.

, : Brash Taunter fights another target creature.

As Brass Herald enters, choose a creature type.

When Brass Herald enters, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

Creatures of the chosen type get +1/+1.

Brass Man doesn't untap during your untap step.

At the beginning of your upkeep, you may pay . If you do, untap Brass Man.

: Attach target Equipment you control to target creature you control.

For each land you control, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

First strike

Sacrifice Brass-Talon Chimera: Put a +2/+2 counter on target Chimera creature. It gains first strike. <I>(This effect lasts indefinitely.)</I>

Choose a color. White creatures you control gain protection from the chosen color until end of turn.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

If this spell was bargained, target land you control becomes a 3/3 Elemental creature with haste that's still a land.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle.