Whenever Brazen Wolves attacks, it gets +2/+0 until end of turn.

When Breaching Leviathan enters, if you cast it from your hand, tap all nonblue creatures. Those creatures don't untap during their controllers' next untap steps.

When you cast this spell, you gain 1 life for each colorless permanent you control.

Hexproof from each color

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.)

At the beginning of each upkeep, if no spells were cast last turn, transform Breakneck Rider.

Flying, lifelink

Whenever Breathless Knight or another creature you control enters, if that creature entered from a graveyard or you cast it from a graveyard, put a +1/+1 counter on Breathless Knight.

Menace

Whenever one or more Pirates you control deal damage to your opponents, exile the top card of each of those opponents' libraries. You may play those cards this turn, and you may spend mana as though it were mana of any color to cast those spells.

Partner (You can have two commanders if both have partner.)

Menace

Whenever you cast your second spell each turn, you may sacrifice an artifact. If you do, flip a coin. When you win the flip, copy that spell. You may choose new targets for the copy. When you lose the flip, Breeches, the Blastmaker deals damage equal to that spell's mana value to any target.

Flying

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

When Breya, Etherium Shaper enters, create two 1/1 blue Thopter artifact creature tokens with flying.

, Sacrifice two artifacts: Choose one —

• Breya deals 3 damage to target player or planeswalker.

• Target creature gets -4/-4 until end of turn.

• You gain 5 life.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Other creatures you control have prowess. (If a creature has multiple instances of prowess, each triggers separately.)

Whenever you cast a noncreature spell, target creature you control can't be blocked this turn.

Flying

Briarberry Cohort gets +1/+1 as long as you control another blue creature.

Whenever Briarbridge Patrol deals damage to one or more creatures, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

At the beginning of each end step, if you sacrificed three or more Clues this turn, you may put a creature card from your hand onto the battlefield.

Flash

When Briarhorn enters, target creature gets +3/+3 until end of turn.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Flash (You may cast this spell any time you could cast an instant.)

When Briarpack Alpha enters, target creature gets +2/+2 until end of turn.

Vigilance

Whenever Bridled Bighorn attacks while saddled, create a 1/1 white Sheep creature token.

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.)

Each Fungus and Saproling you control has ": Add ."

At the beginning of your end step, create a 1/1 green Saproling creature token.

: Brightling gains vigilance until end of turn.

: Brightling gains lifelink until end of turn.

: Return Brightling to its owner's hand.

: Brightling gets +1/-1 or -1/+1 until end of turn.

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Whenever this creature attacks, double the number of +1/+1 counters on target creature. That creature can't be blocked by creatures with power 2 or less this turn.

First strike

: Brigid, Hero of Kinsbaile deals 2 damage to each attacking or blocking creature target player controls.

Vigilance

Whenever Brimaz, King of Oreskos attacks, create a 1/1 white Cat Soldier creature token with vigilance that's attacking.

Whenever Brimaz blocks a creature, create a 1/1 white Cat Soldier creature token with vigilance that's blocking that creature.

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-2

2/3

: Brimstone Mage deals 1 damage to any target.

LEVEL 3+

2/4

: Brimstone Mage deals 3 damage to any target.

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.

When Brindle Shoat dies, create a 3/3 green Boar creature token.

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

When Brine Elemental is turned face up, each opponent skips their next untap step.

When Brine Hag dies, change the base power and toughness of all creatures that dealt damage to it this turn to 0/2. (This effect lasts indefinitely.)

, Sacrifice a creature: Target creature gets +2/+2 until end of turn.

, Sacrifice a creature: Counter target creature spell.

Flash (You may cast this spell any time you could cast an instant.)

Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Brineborn Cutthroat.

Create two 1/1 white Human creature tokens. (Then exile this card. You may cast the creature later from exile.)

You may pay rather than pay this spell's mana cost.

Trample

At the beginning of your upkeep, you may pay 2 life. If you do, search your library for a card, then shuffle and put that card on top.

You may pay rather than pay this spell's mana cost.

Trample

At the beginning of your upkeep, you may create a 3/3 green Beast creature token.

You may pay rather than pay this spell's mana cost.

Trample

At the beginning of your upkeep, you may untap target creature and gain control of it until end of turn. That creature gains haste until end of turn.

Lifelink

, , Sacrifice another creature: Brion Stoutarm deals damage equal to the sacrificed creature's power to target player or planeswalker.

Trample

When Bristlebud Farmer enters, create two Food tokens. (They're artifacts with ", , Sacrifice this artifact: You gain 3 life.")

Whenever Bristlebud Farmer attacks, you may sacrifice a Food. If you do, mill three cards. You may put a permanent card from among them into your hand.

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

Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature.

: Double the number of +1/+1 counters on each creature you control.

: Brokers Initiate has base power and toughness 5/5 until end of turn.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Trample

You may cast Brokkos, Apex of Forever from your graveyard using its mutate ability.

When a player other than Bronze Bombshell's owner controls it, that player sacrifices it. If the player does, Bronze Bombshell deals 7 damage to the player.

Trample

As long as you control another creature, prevent all damage that would be dealt to Bronze Horse by spells that target it.

When Bronze Walrus enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

: Add one mana of any color.

Whenever another creature you control enters, Bronzebeak Moa gets +3/+3 until end of turn.

Trample

Equipped creature gets +3/+2 and has trample.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Whenever an Aura becomes attached to Brood Keeper, create a 2/2 red Dragon creature token with flying. It has ": This creature gets +1/+0 until end of turn."

When Brood of Cockroaches is put into your graveyard from the battlefield, at the beginning of the next end step, you lose 1 life and return Brood of Cockroaches to your hand.

Reach

When Brood Weaver dies, create a 1/2 green Spider creature token with reach.

Whenever Broodhatch Nantuko is dealt damage, you may create that many 1/1 green Insect creature tokens.

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

At the beginning of each end step, each player gains control of all nontoken permanents they own.

Flying

When Broodmate Dragon enters, create a 4/4 red Dragon creature token with flying.

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.)

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Flying

Broodstar's power and toughness are each equal to the number of artifacts you control.