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.
6 /
6
{5}
Alhammarret's Archive
Legendary Artifact
If you would gain life, you gain twice that much life instead.
If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{3}{B}{B}
Black Market
Enchantment
Whenever a creature dies, put a charge counter on Black Market.
At the beginning of your precombat main phase, add {B} for each charge counter on Black Market.
{3}{B}
Blood Tithe
Sorcery
Each opponent loses 3 life. You gain life equal to the life lost this way.
{4}{B}{B}
Bloodsoaked Altar
Artifact
{T}, Pay 2 life, Discard a card, Sacrifice a creature: Create a 5/5 black Demon creature token with flying. Activate only as a sorcery.
{3}
Bontu's Monument
Legendary Artifact
Black creature spells you cast cost {1} less to cast.
Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.
{3}
Burnished Hart
Artifact Creature - Elk
{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
2 /
2
{3}{B}
Bushmeat Poacher
Creature - Human Soldier
{1}, {T}, Sacrifice another creature: You gain life equal to the sacrificed creature's toughness. Draw a card.
2 /
4
{2}
Charcoal Diamond
Artifact
Charcoal Diamond enters the battlefield tapped.
{T}: Add {B}.
{B}
Cling to Dust
Instant
Exile target card from a graveyard. If it was a creature card, you gain 3 life. Otherwise, you draw a card.
Escape--{3}{B}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)
{3}{B}
Consuming Vapors
Sorcery
Target player sacrifices a creature. You gain life equal to that creature's toughness.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
{5}{B}
Corrupt
Sorcery
Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.
{4}
Cosmos Elixir
Artifact
At the beginning of your end step, draw a card if your life total is greater than your starting life total. Otherwise, you gain 2 life.
{2}{B}
Crypt Incursion
Instant
Exile all creature cards from target player's graveyard. You gain 3 life for each card exiled this way.
{B}
Dark Ritual
Instant
Add {B}{B}{B}.
{B}
Defile
Instant
Target creature gets -1/-1 until end of turn for each Swamp you control.
{3}{B}{B}
Demon of Wailing Agonies
Creature - Demon
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."
4 /
4
{3}{B}{B}
Demonic Rising
Enchantment
At the beginning of your end step, if you control exactly one creature, create a 5/5 black Demon creature token with flying.
{3}{B}
Disciple of Bolas
Creature - Human Wizard
When Disciple of Bolas enters the battlefield, sacrifice another creature. You gain X life and draw X cards, where X is that creature's power.
2 /
1
{1}{B}
Disciple of Griselbrand
Creature - Human Cleric
{1}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.
1 /
1
{X}{1}{B}
Drain Life
Sorcery
Spend only black mana on X.
Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.
{3}{B}
Dread Presence
Creature - Nightmare
Whenever a Swamp enters the battlefield under your control, choose one --
• You draw a card and you lose 1 life.
• Dread Presence deals 2 damage to any target and you gain 2 life.
3 /
3
{1}{B}{B}
Embodiment of Agonies
Creature - Demon
Flying, deathtouch
Embodiment of Agonies enters the battlefield with a +1/+1 counter on it for each different mana cost among nonland cards in your graveyard. (For example, {2}{B} and {1}{B}{B} are different mana costs.)
0 /
0
{2}{B}{B}
Eradicator Valkyrie
Creature - Angel Berserker
Flying, lifelink, hexproof from planeswalkers
Boast -- {1}{B}, Sacrifice a creature: Each opponent sacrifices a creature or planeswalker. (Activate only if this creature attacked this turn and only once each turn.)
4 /
3
{2}{B}
Essence Harvest
Sorcery
Target player loses X life and you gain X life, where X is the greatest power among creatures you control.
{3}{B}
Essence Pulse
Sorcery
You gain 2 life. Each creature gets -X/-X until end of turn, where X is the amount of life you gained this turn.
{1}{B}
Eternal Thirst
Enchantment - Aura
Enchant creature
Enchanted creature has lifelink and "Whenever a creature an opponent controls dies, put a +1/+1 counter on this creature." (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)
{2}{B}
Farbog Revenant
Creature - Spirit
Skulk (This creature can't be blocked by creatures with greater power.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
1 /
3
{1}{B}{B}
Force of Despair
Instant
If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost.
Destroy all creatures that entered the battlefield this turn.
{B}{B}
Gifted Aetherborn
Creature - Aetherborn Vampire
Deathtouch, lifelink
2 /
3
{3}{B}{B}
Gray Merchant of Asphodel
Creature - Zombie
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.)
2 /
4
{1}{B}{B}
Grimdancer
Creature - Nightmare
Grimdancer enters the battlefield with your choice of two different counters on it from among menace, deathtouch, and lifelink.
3 /
3
{3}{B}{B}
Liturgy of Blood
Sorcery
Destroy target creature. Add {B}{B}{B}.
{2}{B}
Mark of the Oni
Enchantment - Aura
Enchant creature
You control enchanted creature.
At the beginning of the end step, if you control no Demons, sacrifice Mark of the Oni.
{1}{B}{B}
Murder
Instant
Destroy target creature.
{1}{B}{B}{ // }{1}{B}{B}
Murderous Rider // Swift End
Creature - Zombie Knight // Instant - Adventure
Lifelink
When Murderous Rider dies, put it on the bottom of its owner's library.
Destroy target creature or planeswalker. You lose 2 life. (Then exile this card. You may cast the creature later from exile.)
2 /
3
{2}{B}{B}
Mutilate
Sorcery
All creatures get -1/-1 until end of turn for each Swamp you control.
{1}{B}
Night's Whisper
Sorcery
You draw two cards and you lose 2 life.
{1}{B}{B}
Nighthawk Scavenger
Creature - Vampire Rogue
Flying, deathtouch, lifelink
Nighthawk Scavenger's power is equal to 1 plus the number of card types among cards in your opponents' graveyards.
1+* /
3
{4}{B}{B}
Noxious Gearhulk
Artifact Creature - Construct
Menace
When Noxious Gearhulk enters the battlefield, you may destroy another target creature. If a creature is destroyed this way, you gain life equal to its toughness.
5 /
4
{2}{B}
Overeager Apprentice
Creature - Human Minion
Discard a card, Sacrifice Overeager Apprentice: Add {B}{B}{B}.
1 /
2
{3}{B}{B}
Palace Siege
Enchantment
As Palace Siege enters the battlefield, choose Khans or Dragons.
• Khans -- At the beginning of your upkeep, return target creature card from your graveyard to your hand.
• Dragons -- At the beginning of your upkeep, each opponent loses 2 life and you gain 2 life.
{1}{B}
Poet's Quill
Artifact - Equipment
When Poet's Quill enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)
Equipped creature gets +1/+1 and has lifelink.
Equip {1}{B}
{1}{B}
Priest of Forgotten Gods
Creature - Human Cleric
{T}, Sacrifice two other creatures: Any number of target players each lose 2 life and sacrifice a creature. You add {B}{B} and draw a card.
1 /
2
{3}
Pristine Talisman
Artifact
{T}: Add {C}. You gain 1 life.
{2}{B}{B}{B}
Promise of Power
Sorcery
Choose one --
• You draw five cards and you lose 5 life.
• Create an X/X black Demon creature token with flying, where X is the number of cards in your hand.
Entwine {4} (Choose both if you pay the entwine cost.)
{2}{B}
Read the Bones
Sorcery
Scry 2, then draw two cards. You lose 2 life.
{4}{B}{B}
Reign of the Pit
Sorcery
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.
{B}{B}
Sign in Blood
Sorcery
Target player draws two cards and loses 2 life.
{1}{B}
Skirsdag High Priest
Creature - Human Cleric
Morbid -- {T}, Tap two untapped creatures you control: Create a 5/5 black Demon creature token with flying. Activate only if a creature died this turn.
1 /
2
{1}{B}
Soldevi Adnate
Creature - Human Cleric
{T}, Sacrifice a black or artifact creature: Add an amount of {B} equal to the sacrificed creature's mana value.
1 /
2
{B}
Songs of the Damned
Instant
Add {B} for each creature card in your graveyard.
{3}
Staff of the Death Magus
Artifact
Whenever you cast a black spell or a Swamp enters the battlefield under your control, you gain 1 life.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{1}{B}
Tavern Swindler
Creature - Human Rogue
{T}, Pay 3 life: Flip a coin. If you win the flip, you gain 6 life.
2 /
2
{3}{B}
Tendrils of Corruption
Instant
Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.
{1}{B}
Terror
Instant
Destroy target nonartifact, nonblack creature. It can't be regenerated.
{4}{B}
Tivash, Gloom Summoner
Legendary Creature - Human Warlock
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.
4 /
4
{1}{B}{B}
Vampire Nighthawk
Creature - Vampire Shaman
Flying, deathtouch, lifelink
2 /
3
{2}{B}
Varragoth, Bloodsky Sire
Legendary Creature - Demon Rogue
Deathtouch
Boast -- {1}{B}: Target player searches their library for a card, then shuffles and puts that card on top. (Activate only if this creature attacked this turn and only once each turn.)
2 /
3
{2}{B}
Veinwitch Coven
Creature - Vampire Warlock
Menace
Whenever you gain life, you may pay {B}. If you do, return target creature card from your graveyard to your hand.
3 /
3
{5}
Venser's Journal
Artifact
You have no maximum hand size.
At the beginning of your upkeep, you gain 1 life for each card in your hand.
{2}{B}{B}
Whip of Erebos
Legendary Enchantment Artifact
Creatures you control have lifelink.
{2}{B}{B}, {T}: Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. If it would leave the battlefield, exile it instead of putting it anywhere else. Activate only as a sorcery.
{3}{B}{B}
Witch of the Moors
Creature - Human Warlock
Deathtouch
At the beginning of your end step, if you gained life this turn, each opponent sacrifices a creature and you return up to one target creature card from your graveyard to your hand.