Reveal the top five cards of your library. You may put a creature card and/or an enchantment card from among them into your hand. Put the rest into your graveyard.

Whenever a Beast becomes blocked, it gets +1/+1 until end of turn for each creature blocking it.

A person outside the game becomes your teammate. (Choose any number of cards in your hand, on top of your library, or on the battlefield under your control. Those cards become your teammate's hand, library, and permanents, respectively.)

Enchant artifact or land

Enchanted permanent has ": Target player adds two mana of any one color. The next spell they cast this turn has cascade." (When they cast their next spell, they exile cards from the top of their library until they exile a nonland card that costs less. They may cast it without paying its mana cost. They put the exiled cards on the bottom in a random order.)

Enchant creature

When Bind the Monster enters the battlefield, tap enchanted creature. It deals damage to you equal to its power.

Enchanted creature doesn't untap during its controller's untap step.

Target opponent reveals their hand. You may choose a nonland card from it. If you do, they discard it. Otherwise, you may put a face-up exiled card they own into their graveyard.

At the beginning of the end step, if you control four or more creatures named Biovisionary, you win the game.

As an additional cost to cast this spell, you may collect evidence 6. This spell costs less to cast if evidence was collected. (To collect evidence 6, exile cards with total mana value 6 or greater from your graveyard.)

Target creature you control gets +2/+0 until end of turn. It deals damage equal to its power to target creature you don't control.

Look at the top four cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.

Black Dragon Gate enters the battlefield tapped.

As Black Dragon Gate enters the battlefield, choose a color other than black.

: Add or one mana of the chosen color.

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

: Create a Treasure token.

Menace

Equipped creature has base power and toughness 5/5, has menace, and is a black Demon in addition to its other colors and types.

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

Flying

Creatures can't attack you.

Enchant land

When Blighted Burgeoning enters the battlefield, incubate 2. (Create an Incubator token with two +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

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

Untap all artifacts.

Trample, haste

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

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

Draw three cards.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Nonbasic lands are Mountains.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

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.

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.

Enchant creature you control

, Sacrifice enchanted creature: Bloodfire Infusion deals damage equal to the sacrificed creature's power to each creature.

Flying

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

: Add or .

Sacrifice a creature: Bloodthrone Vampire gets +2/+2 until end of turn.

Each noncreature, non-Equipment artifact is an Equipment with equip and "Equipped creature gets +X/+0," where X is that artifact's mana value.

When Blue Ribbon enters the battlefield, ask a person outside the game which creature you control is most deserving of a blue ribbon. Attach Blue Ribbon to that creature.

Equipped creature has best in show. (Whenever another creature becomes the target of a spell or ability you control, you may copy that spell or ability. If you do, the copy targets this creature.)

Equip

: Boa Constrictor gets +3/+3 until end of turn.

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)

, Sacrifice Boggart Arsonists: Destroy target Scarecrow or Plains.

When Bond Beetle enters the battlefield, put a +1/+1 counter on target creature.

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

Each player mills four cards. Return up to two instant and/or sorcery cards from your graveyard to your hand. Exile Bond of Insight.

Return target creature card from your graveyard to the battlefield. It gains haste until your next turn.

Defender, haste

: Draw a card, then discard a card.

Bonded Horncrest can't attack or block alone.

: Add one mana of any color.

, : Each player who controls a permanent named Bonder's Ornament draws a card.

When Bonds of Mortality enters the battlefield, draw a card.

: Creatures your opponents control lose hexproof and indestructible until end of turn.

Whenever Bone Dancer attacks and isn't blocked, you may put the top creature card of defending player's graveyard onto the battlefield under your control. If you do, Bone Dancer assigns no combat damage this turn.

, : All creatures get -1/-0 until end of turn.

, : The next time a source of your choice would deal damage to you this turn, prevent that damage. Exile cards from the top of your library equal to the damage prevented this way.

Create a tapped 4/1 black Skeleton creature token with menace. (Then exile this card. You may cast the artifact later from exile.)

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

When Bone Pit Brute enters the battlefield, target creature gets +4/+0 until end of turn.

Whenever equipped creature attacks, put four +1/+1 counters on it.

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

: Until end of turn, Bone Shaman gains "Creatures dealt damage by Bone Shaman this turn can't be regenerated this turn."

Flying

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Bone Shredder enters the battlefield, destroy target nonartifact, nonblack creature.

Counter target creature spell.

Draw a card.

, Sacrifice Bonecaller Cleric: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.