Sacrifice a creature: Add {C}{C}.

Charcoal Diamond enters the battlefield tapped. {T}: Add {B}.

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}: Add three mana of any one color.

Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.

{T}: Add one mana of any color.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

You may pay 6 life and sacrifice three black creatures rather than pay this spell's mana cost. Flying, trample

As an additional cost to cast this spell, sacrifice a creature. Flying Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) When Goremand enters the battlefield, each opponent sacrifices a creature.

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Flying At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature or pays 3 life.

Flying Whenever a permanent owned by another player is put into a graveyard from the battlefield, you draw a card and you lose 1 life.

Flying, trample At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can't, Lord of the Pit deals 7 damage to you.

When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn. Whenever a creature an opponent controls dies, that player loses 2 life.

Flying, trample Whenever an opponent searches their library, that player sacrifices a creature and loses 10 life. Whenever another creature dies, put a +1/+1 counter on Ob Nixilis, Unshackled.

A deck can have any number of cards named Shadowborn Apostle. {B}, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.

Whenever a creature you control dies, each other player sacrifices a creature.

{B}, Pay 2 life: Draw a card.

When Liliana's Contract enters the battlefield, you draw four cards and you lose 4 life. At the beginning of your upkeep, if you control four or more Demons with different names, you win the game.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Whenever a nontoken creature you control dies, create a 2/2 black Zombie creature token.

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Pestilence. {B}: Pestilence deals 1 damage to each creature and each player.

Add {B}{B}{B}.

Destroy target nonblack creature.

Destroy target creature or planeswalker with mana value 3 or less.

Destroy target creature or planeswalker.

Destroy target creature.

As an additional cost to cast this spell, sacrifice a creature. Add an amount of {B} equal to the sacrificed creature's mana value.

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Destroy all creatures. They can't be regenerated.

Search your library for a card, put that card into your hand, then shuffle.

Search your library for a card, put that card into your hand, then shuffle.

Search your library for a card, put that card into your hand, then shuffle. You lose 3 life.

Draw four cards. You lose half your life, rounded up.

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

Put target creature card from a graveyard onto the battlefield under your control. That creature is a black Zombie in addition to its other colors and types.

Put all creature cards from all graveyards onto the battlefield under your control.