Flying

When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

At the beginning of your upkeep, sacrifice a creature.

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.)

Whenever an opponent casts a spell, put a -1/-1 counter on Ammit Eternal.

Whenever Ammit Eternal deals combat damage to a player, remove all -1/-1 counters from it.

Flying

Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard.

At the beginning of your upkeep, tap Apocalypse Demon unless you sacrifice another creature.

Flying

At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Flying

When Archfiend of Sorrows enters the battlefield, creatures your opponents control get -2/-2 until end of turn.

Unearth {3}{B}{B} ({3}{B}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Flying

Whenever a source an opponent controls deals damage to Archfiend of Spite, that source's controller loses that much life unless they sacrifice that many permanents.

Madness {3}{B}{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.)

Lifelink

When Baleful Ammit enters the battlefield, put a -1/-1 counter on target creature you control.

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 {2}{B}{B} ({2}{B}{B}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Flying

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

Flying

Carnifex Demon enters the battlefield with two -1/-1 counters on it.

{B}, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature.

As Cover of Darkness enters the battlefield, choose a creature type.

Creatures of the chosen type have fear. (They can't be blocked except by artifact creatures and/or black creatures.)

Each player sacrifices a nontoken creature. Roll a d20 and add the toughness of the creature you sacrificed this way.

1--14 | Return a creature card put into a graveyard this way to the battlefield under your control.

15+ | Return up to two creature cards put into graveyards this way to the battlefield under your control.

+1: Until your next turn, whenever an opponent attacks you and/or planeswalkers you control, they discard a card. If they can't, they sacrifice an attacking creature.

-2: Accept one of Davriel's offers, then accept one of Davriel's conditions.

-3: Target creature an opponent controls perpetually gets -3/-3.

Each player discards three cards.

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

Flying, trample

Flying, trample

Whenever Demon of Loathing deals combat damage to a player, that player sacrifices a creature.

Flying

Lieutenant -- As long as you control your commander, Demon of Wailing Agonies gets +2/+2 and has "Whenever Demon of Wailing Agonies deals combat damage to a player, that player sacrifices a creature."

When Demon's Disciple enters the battlefield, each player sacrifices a creature or planeswalker.

Enchant creature

Enchanted creature gets +3/+1, has flying, and is a Demon in addition to its other types.

You may cast Demonic Embrace from your graveyard by paying 3 life and discarding a card in addition to paying its other costs.

At the beginning of your end step, if you control exactly one creature, create a 5/5 black Demon creature token with flying.

Equipped creature gets +4/+2.

Equip--Sacrifice a creature.

Flying

At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it.

Flash

Whenever a creature you control dies, each opponent sacrifices a creature.

Black creatures you control can't be blocked this turn except by black creatures.

When Dreadhound enters the battlefield, mill three cards. (Put the top three cards of your library into your graveyard.)

Whenever a creature dies or a creature card is put into a graveyard from a library, each opponent loses 1 life.

Flying

{B}, Sacrifice another creature: Regenerate Eater of Hope.

{2}{B}, Sacrifice two other creatures: Destroy target creature.

Equipped creature gets +1/+0.

When equipped creature deals combat damage to a player, unattach Elbrus, the Binding Blade, then transform it.

Equip {1}

Flying, intimidate, trample (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a player loses the game, put thirteen +1/+1 counters on Withengar Unbound.

Flying

Whenever another creature leaves the battlefield, you may have target player mill two cards.

Unearth {2}{B} ({2}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

Flying

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.)

Nonblack creatures get -1/-1 until end of turn.

At the beginning of your upkeep, Festering Evil deals 1 damage to each creature and each player.

{B}{B}, Sacrifice Festering Evil: It deals 3 damage to each creature and each player.

Choose two --

• Put two +1/+1 counters on up to one creature. It gains lifelink until end of turn.

• Destroy each creature with power 2 or less.

• Return up to two creature cards from your graveyard to your hand.

• Each opponent sacrifices a creature with the highest power among creatures they control.

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.

Reverberating Summons -- At the beginning of your end step, each opponent loses 2 life. Then for each opponent who has less life than you, create a 1/3 black Demon creature token named Plaguebearer of Nurgle.

Flying, lifelink

Pay 7 life: Draw seven cards.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

When Halo Hunter enters the battlefield, destroy target Angel.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Flying

At the beginning of your end step, each opponent discards a card.

{1}{B}, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.

Whenever one or more creatures you control become blocked, each blocking creature gets -1/-1 until end of turn.

---

Each creature that blocked this turn gets -1/-1 until end of turn. (Then exile this card. You may cast the creature later from exile.)

At the beginning of your upkeep, if you have no cards in hand, each opponent loses 2 life.

At the beginning of each opponent's upkeep, if that player has no cards in hand, they lose 2 life.

Destroy all creatures you don't control and all planeswalkers you don't control.

Enchant creature

Enchanted creature has "At the beginning of your upkeep, sacrifice a creature."

Enchant creature

Enchanted creature gets +2/+2, has flying, and is a Demon in addition to its other types.

When Inner Demon enters the battlefield, all non-Demon creatures get -2/-2 until end of turn.

Creatures you control have fear. (They can't be blocked except by artifact creatures and/or black creatures.)

At the beginning of your upkeep, sacrifice Kuro, Pitlord unless you pay {B}{B}{B}{B}.

Pay 1 life: Target creature gets -1/-1 until end of turn.

Enchant creature

At the beginning of the end step of enchanted creature's controller, that player sacrifices that creature.

Flying

Whenever Lord of the Void deals combat damage to a player, exile the top seven cards of that player's library, then put a creature card from among them onto the battlefield under your control.

Enchant creature

You control enchanted creature.

At the beginning of the end step, if you control no Demons, sacrifice Mark of the Oni.

Equipped creature has flying and lifelink.

Whenever equipped creature dies, you may pay X life, where X is its power. If you do, draw X cards.

Equip {3}

Flying

At the beginning of your upkeep, each opponent draws a card.

Each opponent sacrifices a creature or enchantment.

Flying

Primarch of the Death Guard -- At the beginning of your end step, you may pay {X}. If you do, create X 2/2 black Astartes Warrior creature tokens with menace. X can't be greater than the amount of life you lost this turn.

Flying

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Whenever Nefarox, Overlord of Grixis attacks alone, defending player sacrifices a creature.

Flying

Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's 1/1 and it's a Nightmare in addition to its other types.

Enchant creature an opponent controls

When enchanted creature dies, return Nurgle's Rot to its owner's hand and you create a 1/3 black Demon creature token named Plaguebearer of Nurgle.

+2: Each opponent loses 1 life. You gain life equal to the life lost this way.

-2: Create a 5/5 black Demon creature token with flying. You lose 2 life.

-8: You get an emblem with "{1}{B}, Sacrifice a creature: You gain X life and draw X cards, where X is the sacrificed creature's power."

Ob Nixilis of the Black Oath can be your commander.

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.

Each opponent sacrifices an artifact creature and a nonartifact creature.

Flying

{B}: Pestilence Demon deals 1 damage to each creature and each player.

First strike

At the beginning of your upkeep, sacrifice Pit Spawn unless you pay {B}{B}.

Whenever Pit Spawn deals damage to a creature, exile that creature.

Flying

Rot Fly -- If an opponent would gain life, that player loses that much life instead.

Destroy all creatures you don't control. They can't be regenerated.

Destroy target non-Angel, non-Demon, non-Devil, non-Dragon creature.

Whenever Rakshasa Debaser attacks, put target creature card from defending player's graveyard onto the battlefield under your control.

Encore {6}{B}{B} ({6}{B}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Choose one or more --

• Each player discards two cards.

• Each player loses 4 life.

• Each player sacrifices two creatures.

Black creatures can't block.

Flying

Morbid -- At the beginning of each end step, if a creature died this turn, destroy target non-Demon creature.

Each player sacrifices a creature. Create an X/X black Demon creature token with flying, where X is the total power of the creatures sacrificed this way.

Kicker {4}{B}

When you cast this spell, if it was kicked, each player loses half their life, rounded up.

Scourge of the Skyclaves's power and toughness are each equal to 20 minus the highest life total among players.

{1}, Sacrifice Scroll of Griselbrand: Target opponent discards a card. If you control a Demon, that player loses 3 life.

Flying

When Shadowborn Demon enters the battlefield, destroy target non-Demon creature.

At the beginning of your upkeep, if there are fewer than six creature cards in your graveyard, sacrifice a creature.

When Shadowgrange Archfiend enters the battlefield, each opponent sacrifices a creature with the greatest power among creatures they control. You gain life equal to the greatest power among creatures sacrificed this way.

Madness--{2}{B}, Pay 8 life. (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever a nontoken creature an opponent controls dies, exile it.

{2}{B}, Put a creature card exiled with Shelob, Dread Weaver into its owner's graveyard: Put two +1/+1 counters on Shelob. Draw a card.

{X}{1}{B}: Put target creature card with mana value X exiled with Shelob onto the battlefield tapped under your control.

Choose one --

• Each opponent sacrifices a nontoken creature.

• Each opponent sacrifices a creature token.

• Each opponent sacrifices a planeswalker.

Each opponent sacrifices a creature or planeswalker with the highest mana value among creatures and planeswalkers they control.

When Soulcage Fiend dies, each player loses 3 life.

Flying

As Sower of Discord enters the battlefield, choose two players.

Whenever damage is dealt to one of the chosen players, the other chosen player also loses that much life.

Spectacle {1}{B}{B} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Flying, trample

At the beginning of your upkeep, Spawn of Mayhem deals 1 damage to each player. Then if you have 10 or less life, put a +1/+1 counter on Spawn of Mayhem.

Flying

Taborax, Hope's Demise has lifelink as long as it has five or more +1/+1 counters on it.

Whenever another nontoken creature you control dies, put a +1/+1 counter on Taborax. If that creature was a Cleric, you may draw a card. If you do, you lose 1 life.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Each opponent discards two cards.

Tempting offer -- Return a creature card from your graveyard to the battlefield. Each opponent may return a creature card from their graveyard to the battlefield. For each opponent who does, return a creature card from your graveyard to the battlefield.

At end of combat, gain control of all creatures blocking The Wretched for as long as you control The Wretched.

Lifelink

At the beginning of your end step, if you gained life this turn, you may pay X life, where X is the amount of life you gained this turn. If you do, create an X/X black Demon creature token with flying.

Flying

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Flying, trample

As Tyrannical Pitlord enters the battlefield, choose another creature you control.

The chosen creature gets +3/+3 and has flying.

When Tyrannical Pitlord leaves the battlefield, sacrifice the chosen creature.

Will of the council -- Starting with you, each player votes for death or torture. If death gets more votes, each opponent sacrifices a creature. If torture gets more votes or the vote is tied, each opponent loses 4 life.

Enchant creature

At the beginning of the upkeep of enchanted creature's controller, Unnatural Hunger deals damage equal to that creature's power to that player unless they sacrifice another creature.

Lifelink

Devourer of Souls -- Whenever another creature dies, put a +1/+1 counter on Venomcrawler.

Flying

Toxic Spores -- At the beginning of your end step, if a permanent you controlled left the battlefield this turn, each opponent loses 3 life.

Flying

At the beginning of each player's upkeep, that player sacrifices a creature. If the player can't, sacrifice Woebringer Demon.

Flying, trample

At the beginning of your upkeep, sacrifice a creature other than Xathrid Demon, then each opponent loses life equal to the sacrificed creature's power. If you can't sacrifice a creature, tap Xathrid Demon and you lose 7 life.