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
{3}
Ashnod's Altar
Artifact
Sacrifice a creature: Add {C}{C}.
{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.
{1}{B}
Blood Artist
Creature - Vampire
Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.
0 /
1
{W}{B}
Cartel Aristocrat
Creature - Human Advisor
Sacrifice another creature: Cartel Aristocrat gains protection from the color of your choice until end of turn.
2 /
2
--
Caves of Koilos
Land
{T}: Add {C}.
{T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you.
--
Crypt of Agadeem
Land
Crypt of Agadeem enters the battlefield tapped.
{T}: Add {B}.
{2}, {T}: Add {B} for each black creature card in your graveyard.
{2}{B}{B}
Dread Return
Sorcery
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.)
{2}{W}{W}{ // }{3}{W}{W}
Dusk // Dawn
Sorcery // Sorcery
Destroy all creatures with power 3 or greater.
Aftermath (Cast this spell only from your graveyard. Then exile it.)
Return all creature cards with power 2 or less from your graveyard to your hand.
{2}{B}
Dutiful Attendant
Creature - Human Warrior
When Dutiful Attendant dies, return another target creature card from your graveyard to your hand.
1 /
2
{2}{W}{B}
Elenda, the Dusk Rose
Legendary Creature - Vampire Knight
Lifelink
Whenever another creature dies, put a +1/+1 counter on Elenda, the Dusk Rose.
When Elenda dies, create X 1/1 white Vampire creature tokens with lifelink, where X is Elenda's power.
1 /
1
{4}{B}
Endrek Sahr, Master Breeder
Legendary Creature - Human Wizard
Whenever you cast a creature spell, create X 1/1 black Thrull creature tokens, where X is that spell's mana value.
When you control seven or more Thrulls, sacrifice Endrek Sahr, Master Breeder.
2 /
2
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{3}{B}
Falkenrath Noble
Creature - Vampire Noble
Flying
Whenever Falkenrath Noble or another creature dies, target player loses 1 life and you gain 1 life.
2 /
2
{2}{B}
Grim Haruspex
Creature - Human Wizard
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.
3 /
2
{1}{W}
Hanweir Militia Captain
Creature - Human Soldier
At the beginning of your upkeep, if you control four or more creatures, transform Hanweir Militia Captain.
2 /
2
--
Westvale Cult Leader
Creature - Human Cleric
Westvale Cult Leader's power and toughness are each equal to the number of creatures you control.
At the beginning of your end step, create a 1/1 white and black Human Cleric creature token.
2 /
2
{4}{B}{B}
Kothophed, Soul Hoarder
Legendary Creature - Demon
Flying
Whenever a permanent owned by another player is put into a graveyard from the battlefield, you draw a card and you lose 1 life.
6 /
6
{2}{B}
Midnight Reaper
Creature - Zombie Knight
Whenever a nontoken creature you control dies, Midnight Reaper deals 1 damage to you and you draw a card.
3 /
2
{1}{W}{B}
Mortify
Instant
Destroy target creature or enchantment.
--
Orzhov Basilica
Land
Orzhov Basilica enters the battlefield tapped.
When Orzhov Basilica enters the battlefield, return a land you control to its owner's hand.
{T}: Add {W}{B}.
--
Orzhov Guildgate
Land - Gate
Orzhov Guildgate enters the battlefield tapped.
{T}: Add {W} or {B}.
{3}
Orzhov Locket
Artifact
{T}: Add {W} or {B}.
{W/B}{W/B}{W/B}{W/B}, {T}, Sacrifice Orzhov Locket: Draw two cards.
{2}
Orzhov Signet
Artifact
{1}, {T}: Add {W}{B}.
{1}{B}{B}
Pawn of Ulamog
Creature - Vampire Shaman
Whenever Pawn of Ulamog or another nontoken creature you control dies, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this creature: Add {C}."
2 /
2
{3}{B}
Pitiless Plunderer
Creature - Human Pirate
Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
1 /
4
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
{4}{B}
Revel in Riches
Enchantment
Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
At the beginning of your upkeep, if you control ten or more Treasures, you win the game.
--
Scoured Barrens
Land
Scoured Barrens enters the battlefield tapped.
When Scoured Barrens enters the battlefield, you gain 1 life.
{T}: Add {W} or {B}.
{3}{B}
Sengir Autocrat
Creature - Human
When Sengir Autocrat enters the battlefield, create three 0/1 black Serf creature tokens.
When Sengir Autocrat leaves the battlefield, exile all Serf tokens.
2 /
2
{3}{B}
Sifter of Skulls
Creature - Eldrazi
Devoid (This card has no color.)
Whenever another nontoken creature you control dies, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}." ({C} represents colorless mana.)
4 /
3
{4}{B}{B}
Skeletal Vampire
Creature - Vampire Skeleton
Flying
When Skeletal Vampire enters the battlefield, create two 1/1 black Bat creature tokens with flying.
{3}{B}{B}, Sacrifice a Bat: Create two 1/1 black Bat creature tokens with flying.
Sacrifice a Bat: Regenerate Skeletal Vampire.
3 /
3
{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}
Skullclamp
Artifact - Equipment
Equipped creature gets +1/-1.
Whenever equipped creature dies, draw two cards.
Equip {1}
{2}{B}{B}
Smothering Abomination
Creature - Eldrazi
Devoid (This card has no color.)
Flying
At the beginning of your upkeep, sacrifice a creature.
Whenever you sacrifice a creature, draw a card.
4 /
3
{2}
Spawning Pit
Artifact
Sacrifice a creature: Put a charge counter on Spawning Pit.
{1}, Remove two charge counters from Spawning Pit: Create a 2/2 colorless Spawn artifact creature token.
--
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}.)
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{2}{W}{B}
Teysa Karlov
Legendary Creature - Human Advisor
If a creature dying causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
Creature tokens you control have vigilance and lifelink.
2 /
4
{5}{W}{B}
Teysa, Envoy of Ghosts
Legendary Creature - Human Advisor
Vigilance, protection from creatures
Whenever a creature deals combat damage to you, destroy that creature. Create a 1/1 white and black Spirit creature token with flying.
4 /
4
{1}{W}{B}
Teysa, Orzhov Scion
Legendary Creature - Human Advisor
Sacrifice three white creatures: Exile target creature.
Whenever another black creature you control dies, create a 1/1 white Spirit creature token with flying.
2 /
3
{1}{W}{W}
Thraben Doomsayer
Creature - Human Cleric
{T}: Create a 1/1 white Human creature token.
Fateful hour -- As long as you have 5 or less life, other creatures you control get +2/+2.
2 /
2
{3}{B}
Vindictive Vampire
Creature - Vampire
Whenever another creature you control dies, Vindictive Vampire deals 1 damage to each opponent and you gain 1 life.
2 /
3
{B}
Viscera Seer
Creature - Vampire Wizard
Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
1 /
1
{2}{B}
Yahenni, Undying Partisan
Legendary Creature - Aetherborn Vampire
Haste
Whenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.
Sacrifice another creature: Yahenni gains indestructible until end of turn.
2 /
2
{1}{B}
Zulaport Cutthroat
Creature - Human Rogue Ally
Whenever Zulaport Cutthroat or another creature you control dies, each opponent loses 1 life and you gain 1 life.