Activated abilities of creatures you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it.

Creatures you control have base power and toughness X/X until end of turn.

Whenever Bioplasm attacks, exile the top card of your library. If it's a creature card, Bioplasm gets +X/+Y until end of turn, where X is the exiled creature card's power and Y is its toughness.

Creatures you control are artifacts in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Whenever you cast an artifact spell, you lose 1 life and create a 2/2 black Necron Warrior artifact creature token.

Oozes you control get +1/+1.

At the beginning of your upkeep, if you control a commander, create a token that's a copy of Biowaste Blob.

Whenever you cast a spell, add . Until end of turn, you don't lose this mana as steps and phases end.

Creatures you control can boast twice during each of your turns rather than once.

( can be paid with either or 2 life.)

, , Sacrifice a creature: Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put that card onto the battlefield, then shuffle. Activate only as a sorcery.

Vigilance

Whenever Bishop of Rebirth attacks, you may return target creature card with mana value 3 or less from your graveyard to the battlefield.

Devoid (This card has no color.)

Menace

Whenever Bismuth Mindrender deals combat damage to a player, that player exiles cards from the top of their library until they exile a nonland card. You may cast that card by paying life equal to the spell's mana value rather than paying its mana cost.

As Bitter Feud enters the battlefield, choose two players.

If a source controlled by one of the chosen players would deal damage to the other chosen player or a permanent that player controls, that source deals double that damage to that player or permanent instead.

At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.

Trample

Black Carriage doesn't untap during your untap step.

Sacrifice a creature: Untap Black Carriage. Activate only during your upkeep.

, Sacrifice Black Lotus: Add three mana of any one color.

Whenever a creature dies, put a charge counter on Black Market.

At the beginning of your precombat main phase, add for each charge counter on Black Market.

At the beginning of your upkeep, Black Market Tycoon deals 2 damage to you for each Treasure you control.

: Create a Treasure token.

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

Equipped creature gets +1/+1 for each land you control.

Equip legendary creature

Equip

: Tear Blacker Lotus into pieces. Add four mana of any one color. Remove the pieces from the game.

Attacking creatures you control have double strike.

For Mirrodin (When this Equipment enters the battlefield, create a 2/2 red Rebel creature token, then attach this to it.)

Whenever Blade of Shared Souls becomes attached to a creature, for as long as Blade of Shared Souls remains attached to it, you may have that creature become a copy of another target creature you control.

Equip

When Blade Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

Golems you control have first strike.

Flying

When Bladewing the Risen enters the battlefield, you may return target Dragon permanent card from your graveyard to the battlefield.

: Dragon creatures get +1/+1 until end of turn.

This spell costs less to cast for each creature on the battlefield.

Blasphemous Act deals 13 damage to each creature.

Blast Zone enters the battlefield with a charge counter on it.

: Add .

, : Put X charge counters on Blast Zone.

, , Sacrifice Blast Zone: Destroy each nonland permanent with mana value equal to the number of charge counters on Blast Zone.

Artifact offering (You may cast this spell as thought it had flash by sacrificing an artifact and paying the difference in mana costs between this and the sacrificed artifact. Mana cost includes color.)

Flying, double strike

Creatures attacking your opponents have double strike.

Cast this spell only during combat before blockers are declared.

Target creature defending player controls can block any number of creatures this turn. It blocks each attacking creature this turn if able.

You may exile a red card with mana value X from your hand rather than pay this spell's mana cost.

Target creature gets +X/+0 until end of turn.

Equipped creature gets +1/+0 for each opponent you have.

Whenever equipped creature is dealt damage, it deals that much damage to any target.

Equip

You gain 3 life for each creature attacking you.

Target player's life total becomes 20.

Distribute X +1/+1 counters among any number of creatures you control, where X is the amount of spent to cast this spell. Then draw a card for each creature you control with power 4 or greater.

When you cast this spell, you may put two cards your opponents own from exile into their owners' graveyards. If you do, create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ."

Deathtouch

Whenever Blight Titan enters the battlefield or attacks, mill two cards, then incubate X, where X is the number of creature cards in your graveyard. (Create an Incubator token with X +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Flying, deathtouch

Whenever you cast your first spell during each opponent's turn, look at the top card of that player's library, then exile it face down. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it.

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

Artifacts and creatures your opponents control enter the battlefield tapped.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever Blinding Angel deals combat damage to a player, that player skips their next combat phase.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I, III — Choose target creature. Its owner shuffles it into their library, then investigates. (They create a Clue token.)

II, IV — Create a 2/2 black Alien Angel artifact creature token with first strike, vigilance, and "Whenever an opponent casts a creature spell, this permanent isn't a creature until end of turn."

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

Untap all artifacts.

At the beginning of each player's precombat main phase, if Blinkmoth Urn is untapped, that player adds for each artifact they control.

Trample, haste

At the beginning of the end step, Blitz Hellion's owner shuffles it into their library.

Flying

: Untap Blizzard Elemental.

Sacrifice another Phyrexian: Put a +1/+1 counter on Bloated Processor.

When Bloated Processor dies, incubate X, where X is its power. (Create an Incubator token with X +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 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.

This spell costs less to cast for each creature that died this turn.

Discard your hand, then draw eight cards. Blood for the Blood God deals 8 damage to each opponent. Exile Blood for the Blood God

Whenever you're dealt damage, you may put that many +1/+1 counters on Blood Hound.

At the beginning of your end step, remove all +1/+1 counters from Blood Hound.

Choose a card type. Target opponent reveals their hand. Blood Oath deals 3 damage to that player for each card of the chosen type revealed this way. (Artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery are card types.)

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.

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.

Kicker—Tap an untapped Vampire you control. (You may tap a Vampire you control in addition to any other costs as you cast this spell.)

Target opponent loses half their life, rounded up. If this spell was kicked, you gain life equal to the life lost this way.