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

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

{1}{B}, Sacrifice an artifact or creature: Draw a card.

When this creature enters, you draw a card and you lose 1 life.

Morph {B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) Whenever another nontoken creature you control dies, draw a card.

Whenever one or more other creatures die, draw a card. This ability triggers only once each turn.

When this creature dies, you draw a card and you lose 1 life.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Flying When this creature enters, draw a card.

{1}{B}, Sacrifice a creature: You gain 1 life and draw a card.

This creature can't block. Sacrifice a creature: Put a +1/+1 counter on this creature.

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Whenever Ayara or another black creature you control enters, each opponent loses 1 life and you gain 1 life. {T}, Sacrifice another black creature: Draw a card.

Defender When this creature enters, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

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

When this creature dies, create a 2/2 black Zombie creature token.

When this creature dies, create a 1/1 black and green Insect creature token with flying.

Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.) Whenever another creature or artifact you control is put into a graveyard from the battlefield, each opponent loses 1 life.

When this creature dies, it deals 2 damage to each opponent and you gain 2 life.

Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad deals 1 damage to each opponent. {1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)

Whenever this creature or another creature you control dies, target opponent loses 1 life and you gain 1 life.

When this creature dies, each player sacrifices a creature of their choice.

When this creature enters, destroy target creature with power 4 or greater. It can't be regenerated. Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying Echo {2}{B} (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 this creature enters, destroy target nonartifact, nonblack creature.

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

When this creature enters, each opponent discards a card.

Flash Whenever a creature you control dies, each opponent sacrifices a creature of their choice.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

You may sacrifice a nontoken black creature rather than pay this spell's mana cost. Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.

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

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.

Destroy target creature or enchantment. You lose 2 life.

You may pay {B} rather than pay this spell's mana cost if there are thirteen or more creatures on the battlefield. Each player sacrifices thirteen creatures of their choice.

Equipped creature gets +2/+2. As long as equipped creature is legendary, it has hexproof. (It can't be the target of spells or abilities your opponents control.) Equip {1}

Enchant creature or planeswalker you control When enchanted permanent dies or is put into exile, return that card to the battlefield under your control.

Until end of turn, target creature you control gains "When this creature dies, return it to the battlefield tapped under its owner's control, then create a Wicked Role token attached to it." (Enchanted creature gets +1/+1. When this token is put into a graveyard, each opponent loses 1 life.)

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

{T}: Add {C}. {T}, Sacrifice a creature: You gain 1 life.

{T}: Add {C}. {T}, Sacrifice a creature: Add {B}{B}.

({T}: Add {B}.)

{T}: Add one mana of any color in your commander's color identity.

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

Whenever a creature dies, put a charge counter on this enchantment. At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

Add {B}{B}{B}.

Black spells you cast cost {1} less to cast.

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

{T}, Sacrifice two other creatures: Any number of target players each lose 2 life and sacrifice a creature of their choice. You add {B}{B} and draw a card.

When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") {1}{B}, Sacrifice another creature or a Treasure: Draw a card.