Whenever a creature an opponent controls dies, Altac Bloodseeker gets +2/+0 and gains first strike and haste until end of turn. (It deals combat damage before creatures without first strike, and it can attack and as soon as it comes under your control.)

Whenever Arrogant Bloodlord blocks or becomes blocked by a creature with power 1 or less, destroy Arrogant Bloodlord at end of combat.

As an additional cost to cast this spell, sacrifice two creatures.

Draw three cards.

Berserkers of Blood Ridge attacks each combat if able.

Search your library for an Aura or Equipment card, reveal it, put it into your hand, then shuffle.

Whenever a creature dies, put a +1/+1 counter on equipped creature. If equipped creature is a Vampire, put two +1/+1 counters on it instead.

Equip

: Attacking Spirits get +1/+0 until end of turn.

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.

Lifelink, protection from white and from black

As long as you have 30 or more life and an opponent has 10 or less life, Blood Baron of Vizkopa gets +6/+6 and has flying.

As long as it's your turn, Blood Burglar has lifelink.(Damage dealt by this creature also causes you to gain that much life.)

At the beginning of each player's upkeep, that player returns a permanent they control to its owner's hand unless they pay 2 life.

: Blood Cultist deals 1 damage to target creature.

Whenever a creature dealt damage by Blood Cultist this turn dies, put a +1/+1 counter on Blood Cultist.

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

Draw three cards.

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

Return a creature card from your graveyard to the battlefield, then return another creature card from your graveyard to your hand.

When Blood Fountain enters the battlefield, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

, , Sacrifice Blood Fountain: Return up to two target creature cards from your graveyard to your hand.

Noncreature spells you cast cost less to cast.

Whenever you cast a noncreature spell, counter that spell unless you sacrifice a creature.

, Sacrifice another creature: Put a +1/+1 counter on Blood Host and you gain 2 life.

Whenever you commit a crime, put a +1/+1 counter on Blood Hustler. This ability triggers only once each turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

: Target opponent loses 1 life and you gain 1 life.

First strike, protection from white

At the beginning of combat on your turn, target creature you control gains double strike until end of turn.

Nonbasic lands are Mountains.

Until end of turn, if damage would be dealt to any creature, you may have that damage dealt to you instead.

Choose one —

• Destroy all creatures.

• Destroy all planeswalkers.

Then return a creature or planeswalker card with mana value X or less from your graveyard to the battlefield, where X is the amount of spent to cast this spell. ( is mana from a snow source.)

Target player draws two cards and loses 2 life.

Blood Petal Celebrant has first strike as long as it's attacking.

When Blood Petal Celebrant dies, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Look at the top four cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order. You lose 2 life.

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

Whenever you gain life, put a +1/+1 counter on Blood Researcher.

If you would draw a card while you have no cards in hand, instead you draw two cards and you lose 1 life.

When Blood Servitor enters the battlefield, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

At the beginning of your upkeep, you may sacrifice Blood Speaker. If you do, search your library for a Demon card, reveal that card, put it into your hand, then shuffle.

Whenever a Demon enters the battlefield under your control, return Blood Speaker from your graveyard to your hand.

Each opponent loses 3 life. You gain life equal to the life lost this way.

Flying, trample

At the beginning of your upkeep, each player loses 1 life. Put a +1/+1 counter on Blood Tyrant for each 1 life lost this way.

Whenever a player loses the game, put five +1/+1 counters on Blood Tyrant.

Flying

At the beginning of combat on your turn, up to one target Blood token you control becomes a 2/2 black Bat creature with flying and haste in addition to its other types.

Whenever a player casts a creature spell, each player returns all cards with the same name as that spell from their graveyard to the battlefield.

Assist (Another player can pay up to of this spell's cost.)

When Bloodborn Scoundrels enters the battlefield, target opponent loses 2 life and you gain 2 life.

Bloodbraid Marauder can't block.

Delirium — This spell has cascade as long as there are four or more card types among cards in your graveyard. (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.)

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on Bloodchief Ascension. (Damage causes loss of life.)

Whenever a card is put into an opponent's graveyard from anywhere, if Bloodchief Ascension has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

, Sacrifice another Warrior creature: Target player loses X life and you gain X life, where X is the sacrificed creature's power.

Bloodcrazed Goblin can't attack unless an opponent has been dealt damage this turn.

Bloodcrazed Neonate attacks each combat if able.

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

Menace

When Bloodcrazed Socialite enters the battlefield, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Whenever Bloodcrazed Socialite attacks, you may sacrifice a Blood token. If you do, it gets +2/+2 until end of turn.

Flying

At the beginning of your upkeep, mill a card.

Threshold — As long as seven or more cards are in your graveyard, Bloodcurdler gets +1/+1 and has "At the beginning of your end step, exile two cards from your graveyard."

As long as you control an enchantment, Blood-Cursed Knight gets +1/+1 and has lifelink. (Damage dealt by this creature also causes you to gain that much life.)

Bloodfell Caves enters the battlefield tapped.

When Bloodfell Caves enters the battlefield, you gain 1 life.

: Add or .

, Sacrifice Bloodfire Dwarf: It deals 1 damage to each creature without flying.

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

, Sacrifice Bloodfire Kavu: It deals 2 damage to each creature.

Sacrifice a creature: Put a +1/+1 counter on Bloodflow Connoisseur.

Trample

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Flying

At the beginning of your upkeep, target player draws a card and loses 1 life.