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
{1}{B}
Altar's Reap
Instant
As an additional cost to cast this spell, sacrifice a creature.
Draw two cards.
{2}{G}{G}
Arasta of the Endless Web
Legendary Enchantment Creature - Spider
Reach
Whenever an opponent casts an instant or sorcery spell, create a 1/2 green Spider creature token with reach.
3 /
5
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{2}{B}
Blight Mound
Enchantment
Attacking Pests you control get +1/+0 and have menace.
Whenever a nontoken creature you control dies, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."
--
Blighted Woodland
Land
{T}: Add {C}.
{3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
{3}{B}
Blood for Bones
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
Return a creature card from your graveyard to the battlefield, then return another creature card from your graveyard to your hand.
{G}
Caustic Caterpillar
Creature - Insect
{1}{G}, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.
1 /
1
{0}
Claws of Gix
Artifact
{1}, Sacrifice a permanent: You gain 1 life.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{1}{B/G}{B/G}{B/G}
Creakwood Liege
Creature - Horror
Other black creatures you control get +1/+1.
Other green creatures you control get +1/+1.
At the beginning of your upkeep, you may create a 1/1 black and green Worm creature token.
2 /
2
--
Darkbore Pathway
Land
{T}: Add {B}.
--
Slitherbore Pathway
Land
{T}: Add {G}.
{4}{B}{G}
Deadbridge Chant
Enchantment
When Deadbridge Chant enters the battlefield, mill ten cards.
At the beginning of your upkeep, choose a card at random in your graveyard. If it's a creature card, put it onto the battlefield. Otherwise, put it into your hand.
{4}{B}{B}
Deadly Tempest
Sorcery
Destroy all creatures. Each player loses life equal to the number of creatures they controlled that were destroyed this way.
{2}{B}{G}
Deathreap Ritual
Enchantment
Morbid -- At the beginning of each end step, if a creature died this turn, you may draw a card.
{4}
Deathrender
Artifact - Equipment
Equipped creature gets +2/+2.
Whenever equipped creature dies, you may put a creature card from your hand onto the battlefield and attach Deathrender to it.
Equip {2}
{B}{G}
Dina, Soul Steeper
Legendary Creature - Dryad Druid
Whenever you gain life, each opponent loses 1 life.
{1}, Sacrifice another creature: Dina, Soul Steeper gets +X/+0 until end of turn, where X is the sacrificed creature's power.
1 /
3
{3}
Druidic Satchel
Artifact
{2}, {T}: Reveal the top card of your library. If it's a creature card, create a 1/1 green Saproling creature token. If it's a land card, put that card onto the battlefield under your control. If it's a noncreature, nonland card, you gain 2 life.
{1}
Elixir of Immortality
Artifact
{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.
{1}{G}
Evolutionary Leap
Enchantment
{G}, Sacrifice a creature: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.
{1}{B}
Feed the Swarm
Sorcery
Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{X}{B}{B}{G}
Gaze of Granite
Sorcery
Destroy each nonland permanent with mana value X or less.
{4}{G}
Genesis
Creature - Incarnation
At the beginning of your upkeep, if Genesis is in your graveyard, you may pay {2}{G}. If you do, return target creature card from your graveyard to your hand.
4 /
4
{1}{B}{G}
Golgari Germination
Enchantment
Whenever a nontoken creature you control dies, create a 1/1 green Saproling creature token.
--
Golgari Guildgate
Land - Gate
Golgari Guildgate enters the battlefield tapped.
{T}: Add {B} or {G}.
{3}
Golgari Locket
Artifact
{T}: Add {B} or {G}.
{B/G}{B/G}{B/G}{B/G}, {T}, Sacrifice Golgari Locket: Draw two cards.
--
Golgari Rot Farm
Land
Golgari Rot Farm enters tapped.
When Golgari Rot Farm enters, return a land you control to its owner's hand.
{T}: Add {B}{G}.
--
Grim Backwoods
Land
{T}: Add {C}.
{2}{B}{G}, {T}, Sacrifice a creature: Draw a card.
{3}{B}
Hell's Caretaker
Creature - Horror
{T}, Sacrifice a creature: Return target creature card from your graveyard to the battlefield. Activate only during your upkeep.
1 /
1
--
High Market
Land
{T}: Add {C}.
{T}, Sacrifice a creature: You gain 1 life.
{2}{B}{B}{G}{G}
Izoni, Thousand-Eyed
Legendary Creature - Elf Shaman
Undergrowth -- When Izoni, Thousand-Eyed enters the battlefield, create a 1/1 black and green Insect creature token for each creature card in your graveyard.
{B}{G}, Sacrifice another creature: You gain 1 life and draw a card.
2 /
3
{B}{B}{G}{G}
Jarad, Golgari Lich Lord
Legendary Creature - Zombie Elf
Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.
{1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.
Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.
2 /
2
--
Jungle Hollow
Land
Jungle Hollow enters tapped.
When Jungle Hollow enters, you gain 1 life.
{T}: Add {B} or {G}.
{B}{G}
Korozda Guildmage
Creature - Elf Shaman
{1}{B}{G}: Target creature gets +1/+1 and gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)
{2}{B}{G}, Sacrifice a nontoken creature: Create X 1/1 green Saproling creature tokens, where X is the sacrificed creature's toughness.
2 /
2
{1}{B}
Lampad of Death's Vigil
Enchantment Creature - Nymph
{1}, Sacrifice a creature: Each opponent loses 1 life and you gain 1 life.
1 /
3
{1}{B}{G}
Leyline Prowler
Creature - Nightmare Beast
Deathtouch, lifelink
{T}: Add one mana of any color.
2 /
3
--
Llanowar Wastes
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.
{3}{B}{G}
Moldervine Reclamation
Enchantment
Whenever a creature you control dies, you gain 1 life and draw a card.
{3}{G}{G}
Mycoloth
Creature - Fungus
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.)
At the beginning of your upkeep, create a 1/1 green Saproling creature token for each +1/+1 counter on Mycoloth.
4 /
4
--
Myriad Landscape
Land
Myriad Landscape enters the battlefield tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.
{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
{3}{G}{G}
Perilous Forays
Enchantment
{1}, Sacrifice a creature: Search your library for a land card with a basic land type, put it onto the battlefield tapped, then shuffle.
{X}{X}{G}
Pest Infestation
Sorcery
Destroy up to X target artifacts and/or enchantments. Create twice X 1/1 black and green Pest creature tokens with "When this creature dies, you gain 1 life."
{2}{B}
Pestilent Cauldron
Artifact
{T}, Discard a card: Create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."
{1}, {T}: Each opponent mills cards equal to the amount of life you gained this turn.
{4}, {T}: Exile four target cards from a single graveyard. Draw a card.
--
Restorative Burst
Sorcery
Return up to two target creature, land, and/or planeswalker cards from your graveyard to your hand. Each player gains 4 life. Exile Restorative Burst.
{B}
Phyrexian Reclamation
Enchantment
{1}{B}, Pay 2 life: Return target creature card from your graveyard to your hand.
{2}{B}{G}
Reaper of the Wilds
Creature - Gorgon
Whenever another creature dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{B}: Reaper of the Wilds gains deathtouch until end of turn.
{1}{G}: Reaper of the Wilds gains hexproof until end of turn.
4 /
5
{1}{B}
Reassembling Skeleton
Creature - Skeleton Warrior
{1}{B}: Return Reassembling Skeleton from your graveyard to the battlefield tapped.
1 /
1
{1}{G}
Regrowth
Sorcery
Return target card from your graveyard to your hand.
{1}{G}
Sakura-Tribe Elder
Creature - Snake Shaman
Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
1 /
1
{3}{B}{B}
Sanguine Bond
Enchantment
Whenever you gain life, target opponent loses that much life.
{3}{B/G}{B/G}
Sapling of Colfenor
Legendary Creature - Treefolk Shaman
Indestructible
Whenever Sapling of Colfenor attacks, reveal the top card of your library. If it's a creature card, you gain life equal to that card's toughness, lose life equal to its power, then put it into your hand.
2 /
5
{2}{B}{G}
Savra, Queen of the Golgari
Legendary Creature - Elf Shaman
Whenever you sacrifice a black creature, you may pay 2 life. If you do, each other player sacrifices a creature.
Whenever you sacrifice a green creature, you may gain 2 life.
2 /
2
{1}{B}{G}
Slimefoot, the Stowaway
Legendary Creature - Fungus
Whenever a Saproling you control dies, Slimefoot, the Stowaway deals 1 damage to each opponent and you gain 1 life.
{4}: Create a 1/1 green Saproling creature token.
2 /
3
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
--
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}.)
{5}{G}{G}{G}
Symbiotic Wurm
Creature - Wurm
When Symbiotic Wurm dies, create seven 1/1 green Insect creature tokens.
7 /
7
--
Tainted Wood
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Activate only if you control a Swamp.
{4}{B}{B}
Taste of Death
Sorcery
Each player sacrifices three creatures. You create three Food tokens. (They're artifacts with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
--
Temple of Malady
Land
Temple of Malady enters tapped.
When Temple of Malady enters, scry 1.
{T}: Add {B} or {G}.
--
Thriving Moor
Land
Thriving Moor enters the battlefield tapped.
As Thriving Moor enters the battlefield, choose a color other than black.
{T}: Add {B} or one mana of the chosen color.
{B}{G}
Treasured Find
Sorcery
Return target card from your graveyard to your hand. Exile Treasured Find.
{2}{G}
Trudge Garden
Enchantment
Whenever you gain life, you may pay {2}. If you do, create a 4/4 green Fungus Beast creature token with trample.
{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}{G}{G}{G}
Verdant Force
Creature - Elemental
At the beginning of each upkeep, create a 1/1 green Saproling creature token.
7 /
7
{B}
Village Rites
Instant
As an additional cost to cast this spell, sacrifice a creature.
Draw two cards.
{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
{3}{B}
Whisper, Blood Liturgist
Legendary Creature - Human Cleric
{T}, Sacrifice two creatures: Return target creature card from your graveyard to the battlefield.
2 /
2
--
Witherbloom Campus
Land
Witherbloom Campus enters the battlefield tapped.
{T}: Add {B} or {G}.
{4}, {T}: Scry 1.
{1}{G}{G}
Yavimaya Elder
Creature - Human Druid
When Yavimaya Elder dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
{2}, Sacrifice Yavimaya Elder: Draw a card.
2 /
1
{2}{B}
Bastion of Remembrance
Enchantment
When Bastion of Remembrance enters, create a 1/1 white Human Soldier creature token.
Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.
{B}
Bone Splinters
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.
{5}{B}{B}
Butcher of Malakir
Creature - Vampire Warrior
Flying
Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature.
5 /
4
{2}{B}{G}
Culling Ritual
Sorcery
Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.
{3}{B/G}{B/G}{B/G}
Gleancrawler
Creature - Insect Horror
({B/G} can be paid with either {B} or {G}.)
Trample
At the beginning of your end step, return to your hand all creature cards in your graveyard that were put there from the battlefield this turn.
6 /
6
{1}{B}
Malefic Scythe
Artifact - Equipment
Malefic Scythe enters the battlefield with a soul counter on it.
Equipped creature gets +1/+1 for each soul counter on Malefic Scythe.
Whenever equipped creature dies, put a soul counter on Malefic Scythe.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)
{5}{B}{B}
Sepulchral Primordial
Creature - Avatar
Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
When Sepulchral Primordial enters the battlefield, for each opponent, you may put up to one target creature card from that player's graveyard onto the battlefield under your control.
5 /
4
{1}{B}
Severed Strands
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
You gain life equal to the sacrificed creature's toughness. Destroy target creature an opponent controls.
{B}{G}
Tend the Pests
Instant
As an additional cost to cast this spell, sacrifice a creature.
Create X 1/1 black and green Pest creature tokens with "When this creature dies, you gain 1 life," where X is the sacrificed creature's power.
{B}
Vampiric Rites
Enchantment
{1}{B}, Sacrifice a creature: You gain 1 life and draw a card.
{2}{B}
Victimize
Sorcery
Choose two target creature cards in your graveyard. Sacrifice a creature. If you do, return the chosen cards to the battlefield tapped.
{2}{B}{G}
Vraska, Golgari Queen
Legendary Planeswalker - Vraska
+2: You may sacrifice another permanent. If you do, you gain 1 life and draw a card.
-3: Destroy target nonland permanent with mana value 3 or less.
-9: You get an emblem with "Whenever a creature you control deals combat damage to a player, that player loses the game."