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.

Enchant creature card in a graveyard

When Animate Dead enters the battlefield, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it.

Enchanted creature gets -1/-0.

Bestow {4}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Enchanted creature gets +1/+1 and has deathtouch.

Morph {X}{B}{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.)

When Bane of the Living is turned face up, all creatures get -X/-X until end of turn.

Each player sacrifices two creatures.

When Brain Maggot enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card until Brain Maggot leaves the battlefield.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

At the beginning of your upkeep, tap Carnophage unless you pay 1 life.

Target player sacrifices a creature.

Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Shadow (This creature can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.)

Dauthi Slayer attacks each combat if able.

Enchant creature

Enchanted creature gets -2/-2.

Each player loses X life, discards X cards, sacrifices X creatures, then sacrifices X lands.

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

When Diabolic Servitude enters the battlefield, return target creature card from your graveyard to the battlefield.

When the creature put onto the battlefield with Diabolic Servitude dies, exile it and return Diabolic Servitude to its owner's hand.

When Diabolic Servitude leaves the battlefield, exile the creature put onto the battlefield with Diabolic Servitude.

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

Diregraf Ghoul enters the battlefield tapped.

Destroy target nonblack creature.

Return target creature card from your graveyard to the battlefield.

Flashback--Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

Enchant creature

You control enchanted creature.

At the beginning of your upkeep, enchanted creature deals 1 damage to its owner.

Each player puts a creature card from their graveyard onto the battlefield.

Flying

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

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

Kicker {B} (You may pay an additional {B} as you cast this spell.)

When Gatekeeper of Malakir enters the battlefield, if it was kicked, target player sacrifices a creature.

Bestow {3}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Gnarled Scarhide can't block.

Enchanted creature gets +2/+1 and can't block.

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.)

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.

Deathtouch

Whenever another nontoken creature dies, you may draw a card.

Target player discards two cards at random.

Inspired -- Whenever King Macar, the Gold-Cursed becomes untapped, you may exile target creature. If you do, create a Gold token. (It's an artifact with "Sacrifice this artifact: Add one mana of any color.")

When Laquatus's Champion enters the battlefield, target player loses 6 life.

When Laquatus's Champion leaves the battlefield, that player gains 6 life.

{B}: Regenerate Laquatus's Champion.

Flying

When Liliana's Specter enters the battlefield, each opponent discards a card.

Return target creature card from your graveyard to the battlefield with a mannequin counter on it. For as long as that creature has a mannequin counter on it, it has "When this creature becomes the target of a spell or ability, sacrifice it."

Flying, first strike, haste

Whenever Mirri the Cursed deals combat damage to a creature, put a +1/+1 counter on Mirri the Cursed.

All creatures get -1/-1 until end of turn for each Swamp you control.

Changeling (This card is every creature type.)

Target creature gets +3/-3 and loses all creature types until end of turn.

First strike

When Nekrataal enters the battlefield, destroy target nonartifact, nonblack creature. That creature can't be regenerated.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Nezumi Cutthroat can't block.

{1}{B}: Exile target card from an opponent's graveyard. If no cards are in that graveyard, flip Nezumi Graverobber.

{4}{B}: Put target creature card from a graveyard onto the battlefield under your control.

Inspired -- Whenever Pain Seer becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's mana value.

When Phyrexian Rager enters the battlefield, you draw a card and you lose 1 life.

All Slivers have "At the beginning of your upkeep, this permanent deals 1 damage to you."

Discard a card: Putrid Imp gains flying until end of turn.

Threshold -- As long as seven or more cards are in your graveyard, Putrid Imp gets +1/+1 and can't block.

Scry 2, then draw two cards. You lose 2 life.

{T}: Destroy target tapped creature.

Sacrifice Seal of Doom: Destroy target nonblack creature. It can't be regenerated.

As an additional cost to cast this spell, exile X cards from your graveyard.

You draw X cards and you lose X life.

When Skinrender enters the battlefield, put three -1/-1 counters on target creature.

Each player loses 1 life, discards a card, sacrifices a creature, then sacrifices a land.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost.

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

Bestow {3}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Whenever Spiteful Returned or enchanted creature attacks, defending player loses 2 life.

Enchanted creature gets +1/+1.

Tormented Hero enters the battlefield tapped.

Heroic -- Whenever you cast a spell that targets Tormented Hero, each opponent loses 1 life. You gain life equal to the life lost this way.

Target creature gets -1/-1 until end of turn.

Morbid -- That creature gets -13/-13 until end of turn instead if a creature died this turn.

Return target creature card from your graveyard to the battlefield.

Flashback {3}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying

Vampire Interloper can't block.

At the beginning of your upkeep, you lose 1 life unless an opponent has 10 or less life.

Flying, deathtouch, lifelink

Return target creature card from your graveyard to the battlefield. If {G} was spent to cast this spell, that creature enters the battlefield with an additional +1/+1 counter on it.

Return target creature card from your graveyard to the battlefield.