When Blasphemous Bonecaller enters the battlefield or dies, you draw a card and you lose 1 life.
{1}{B}, Discard Blasphemous Bonecaller: You draw a card and you lose 1 life.

When Bleakheart Instructor enters the battlefield, put a lifelink counter on target creature you control.

Whenever an attacking creature you control dies, Bleeding Edge Memorial deals 1 damage to defending player.
Spellcharge 4

Enchant creature
Enchanted creature has double strike.

Enchant player
Enchanted player may cast blue spells with mana value less than or equal to their devotion to blue without paying their mana costs.

Enchant creature
Enchanted creature gets +2/+2 and has flying.
Whenever enchanted creature dies, create a 2/2 white Pegasus creature token with flying.

Flash
When Blightfang Zyxthax enters the battlefield, discard a card. If you do, it gains deathtouch until end of turn.

Flash
When Blind Keelah enters the battlefield and whenever you cast a spell during an opponent's turn, each opponent loses 1 life and you surveil 1. This ability triggers only once each turn.

Enchant creature
Enchanted creature can't attack or block.

Ward {X}, where X is the number of differently named lands you control.

Flying, haste
When Blistering Cryophoenix enters the battlefield, discard any number of cards, then draw that many cards.
If a spell you own which had its flashback cost paid would be put into exile, put it into your hand instead.

Lifelink
Whenever you gain life, you may pay {B}. If you do, put a +1/+1 counter on target creature you control with lifelink.
{4}{B}: Whenever you gain life this turn, each opponent loses that much life.

Trample, haste
Revolt — At the beginning of your end step, sacrifice Bloodfrenzied Vanguard unless another permanent you controlled left the battlefield this turn.

Menace, first strike
Exile a card from your graveyard, Pay 1 life: Add {C}. Spend this mana only to cast an instant or sorcery spell.

Flying, trample
When Blooming Cocollona enters the battlefield, you may have it deal 3 damage to another target creature or planeswalker. If you do, that permanent's controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Vigilance
Other creatures you control with vigilance get +1/+1.
Whenever one or more creatures with vigilance you control attack, you may tap target creature.

Once each turn, when you play a card from anywhere but your hand, you may create a tapped Treasure token.
{2}{R}: Level 2
At the beginning of your upkeep, exile the top card of your library. You may play that card this turn.
{3}{R}: Level 3
Whenever another permanent you control leaves the battlefield, this Class deals 1 damage to any target.

When Brass Baker enters the battlefield, create a Food token.

Brass Laborer enters with two reach counters on it.

Whenever you cast an instant spell, put a +1/+1 counter on Brass Oracle.
Whenever you cast a sorcery spell, Brass Oracle deals damage to any target equal to its power.

Flying
Whenever another creature enters the battlefield under your control, you may have Bravewing Hero dare 2.

Flying
When Breaching Jaxl enters the battlefield, untap target nonland permanent.
Wander {2}{U}

Haste
Whenever you amp it up, put a +1/+1 counter on Breakbot. It gains first strike until end of turn.

Trample
Breaking Ground must be blocked if able.
{T}: Add {C}.
Spellcharge 9

{VP}{VP}{VP}, Sacrifice Bright-Lights Terrier: Creatures you control gain indestructible until end of turn.