Flying

Whenever Blizzard Specter deals combat damage to a player, choose one —

• That player returns a permanent they control to its owner's hand.

• That player discards a card.

Whenever you sacrifice a permanent, put a +1/+1 counter on Blood Aspirant.

, , Sacrifice a creature or enchantment: Blood Aspirant deals 1 damage to target creature. That creature can't block this turn.

(: Add or .)

As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Lifelink

When Blood Operative enters the battlefield, you may exile target card from a graveyard.

Whenever you surveil, if Blood Operative is in your graveyard, you may pay 3 life. If you do, return Blood Operative to your hand.

Sacrifice Blood Pet: Add .

Spark (Activate spark abilities by spending or giving yourself spark counters. Activate only one spark ability per turn, and only as a sorcery.)

+1: CARDNAME gains lifelink until end of turn.

−3: Target opponent discards a card. You gain life equal to its converted mana cost.

When Blood Spatter Analysis enters the battlefield, it deals 3 damage to target creature an opponent controls.

Whenever one or more creatures die, mill a card and put a bloodstain counter on Blood Spatter Analysis. Then sacrifice it if it has five or more bloodstain counters on it. When you do, return target creature card from your graveyard to your hand.

Whenever you gain life, put a +1/+1 counter on Bloodbond Vampire.

Flash

Bloodcrazed Paladin enters the battlefield with a +1/+1 counter on it for each creature that died this turn.

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

Flying

: Create a 2/2 black Vampire creature token with flying.

: Transform Bloodline Keeper. Activate only if you control five or more Vampires.

Whenever Bloodmad Vampire deals combat damage to a player, put a +1/+1 counter on it.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When Bloodrage Alpha enters the battlefield, choose one —

• Another target Wolf or Werewolf you control fights target creature you don't control.

• When you cast your next Wolf or Werewolf spell, it gains "When this creature enters the battlefield, it fights up to one target creature you don't control."

Bloodrock Cyclops attacks each combat if able.

, Sacrifice a creature: Bloodshot Cyclops deals damage equal to the sacrificed creature's power to any target.

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)

Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.

Flying

When Blood-Toll Harpy enters the battlefield, each player loses 1 life.

Reach

When Blossom Prancer enters the battlefield, look at the top five cards of your library. You may reveal a creature or enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. If you didn't put a card into your hand this way, you gain 4 life.

Haste

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Whenever you sacrifice another creature, put a +1/+1 counter on Body Dropper.

, Sacrifice another creature: Body Dropper gains menace until end of turn. (It can't be blocked except by two or more creatures.)

Bog Serpent can't attack unless defending player controls a Swamp.

When you control no Swamps, sacrifice Bog Serpent.

As long as you control a Faerie, Boggart Sprite-Chaser gets +1/+1 and has flying.

: Bold Impaler gets +2/+0 until end of turn.

Until end of turn, cards you own that aren't on the battlefield lose all card types, costs, names, and abilities and become red sorceries named Missile that cost with "Missile deals 2 damage to any target."

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.

This spell costs less to cast if a creature died this turn.

Flying, deathtouch

When CARDNAME is put into your graveyard from anywhere, exile it. When you do, create four Reassembling Skeleton token cards and put them into your graveyard.

Whenever Bonecrusher Giant becomes the target of a spell, Bonecrusher Giant deals 2 damage to that spell's controller.

Equipped creature gets +2/+0.

Equip

Exile up to five target creature cards from graveyards. An opponent separates those cards into two piles. Put all cards from the pile of your choice onto the battlefield under your control and the rest into their owners' graveyards.

As Booby Trap enters the battlefield, 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 Booby Trap. If you do, Booby Trap deals 10 damage to that player.

: Flip a coin. If you win the flip, destroy all nonland permanents.

Boot Nipper enters the battlefield with your choice of a deathtouch counter or a lifelink counter on it.

Whenever Borborygmos and Fblthp enters the battlefield or attacks, draw a card, then you may discard any number of land cards. When you discard one or more cards this way, Borborygmos and Fblthp deals twice that much damage to target creature.

: Put Borborygmos and Fblthp into its owner's library third from the top.

When Borderland Explorer enters the battlefield, each player may discard a card. Each player who discarded a card this way may search their library for a basic land card, reveal it, put it into their hand, then shuffle.

Whenever Boromir, Gondor's Hope enters the battlefield or attacks, look at the top six cards of your library. You may reveal a Human or artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Battalion — Whenever Boros Strike-Captain and at least two other creatures attack, exile the top card of your library. During any turn you attacked with three or more creatures, you may play that card.

, : Until end of turn, you may cast instant and sorcery spells from the top of your graveyard. If a spell cast this way would be put into a graveyard, exile it instead.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Bottle-Cap Blast deals 5 damage to any target. If excess damage was dealt to a permanent this way, create that many tapped Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

: Add .

If you have no land cards in your hand, seek a land card and a nonland card. Otherwise, seek two nonland cards. (To seek a card, put one at random from your library into your hand.)

Prevent all damage that would be dealt to target multicolored creature this turn. For each 1 damage prevented this way, put a +1/+1 counter on that creature.

, : Draw a card for each artifact you control, then put Braided Quipu into its owner's library third from the top.

: You gain 1 life.

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.)

Trample

Tap an untapped creature you control: Bramblesnap gets +1/+1 until end of turn.

: Add .

Equipped creature gets +2/+2 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

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

Vigilance

When Brazen Upstart dies, look at the top five cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Target player reveals all cards with mana value 2 or greater in their hand. You choose a card from among those cards. Exile that card. If a card was exiled this way, that player drafts a card from Break Expectations's spellbook and reveals it.