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.

Players have no maximum hand size.

At the beginning of each player's draw step, that player draws an additional card, then discards a card.

If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast.

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

{T}: Destroy target creature. It can't be regenerated.

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

Flying

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

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

{2}, {T}: Add {B} for each Swamp you control.

Charcoal Diamond enters the battlefield tapped.

{T}: Add {B}.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Whenever you tap a Swamp for mana, add an additional {B}.

{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.

Dakmor Salvage enters the battlefield tapped.

{T}: Add {B}.

Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

Add {B}{B}{B}.

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

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

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.

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

Create X tapped 2/2 black Zombie creature tokens.

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Imprint -- When Extraplanar Lens enters the battlefield, you may exile target land you control.

Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

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

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

Flying

Threshold -- As long as seven or more cards are in your graveyard, Gloomdrifter has "When Gloomdrifter enters the battlefield, nonblack creatures get -2/-2 until end of turn."

When Golgari Thug dies, put target creature card from your graveyard on top of your library.

Dredge 4 (If you would draw a card, you may mill four cards instead. If you do, return this card from your graveyard to your hand.)

At the beginning of your upkeep, you draw X cards and you lose X life, where X is the number of Zombies you control.

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.)

Search your library for a card and put that card into your hand. If this spell was cast from a graveyard, instead search your library for two cards and put those cards into your hand. Then shuffle.

Flashback {7}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

Flying

When Kokusho, the Evening Star dies, each opponent loses 5 life. You gain life equal to the life lost this way.

{T}: Add {B}.

+1: Target player discards a card.

-2: Search your library for a card, then shuffle and put that card on top.

-8: Put all creature cards from all graveyards onto the battlefield under your control.

+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.

-3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.

-6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}.'"

Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.

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.

{T}, Sacrifice Memory Jar: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

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

Whenever a Human deals damage to you, destroy it.

Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Exchange your graveyard and library. Then shuffle your library.

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

At the beginning of each player's upkeep, that player discards a card.

Nevinyrral's Disk enters the battlefield tapped.

{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Whenever a creature deals damage to you, destroy it.

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.

Whenever a player casts a spell, that player discards a card.

{T}: Add {C}{C}.

Each player chooses a creature type. Each player returns all creature cards of a type chosen this way from their graveyard to the battlefield.

Flying

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

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

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.

Flying

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

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

Flying

When Rune-Scarred Demon enters the battlefield, search your library for a card, put it into your hand, then shuffle.

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.

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

At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

At the beginning of each opponent's upkeep, that player sacrifices a creature.

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

When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.

Evoke {1}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

When Slum Reaper enters the battlefield, each player sacrifices a creature.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

{T}: Add {C}{C}.

Flying

Whenever Stinkweed Imp deals combat damage to a creature, destroy that creature.

Dredge 5 (If you would draw a card, you may mill five cards instead. If you do, return this card from your graveyard to your hand.)

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

Whenever Stronghold Rats deals combat damage to a player, each player discards a card.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Until end of turn, creatures target player controls lose all abilities and have base power and toughness 0/2.

{B}: Regenerate Twisted Abomination.

Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Each land is a Swamp in addition to its other land types.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

{1}: Exile target card from a graveyard.

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Withering Wisps.

{B}: Withering Wisps deals 1 damage to each creature and each player. Activate no more times each turn than the number of snow Swamps you control.

Worn Powerstone enters the battlefield tapped.

{T}: Add {C}{C}.

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.