Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
{T}: Add {C}.
{5}, {T}: Draw a card. Activate only if you have the city's blessing.
{1}{B}{B}
Attrition
Enchantment
{B}, Sacrifice a creature: Destroy target nonblack creature.
{B}
Bubbling Muck
Sorcery
Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}.
--
Cabal Stronghold
Land
{T}: Add {C}.
{3}, {T}: Add {B} for each basic Swamp you control.
{3}{B}{B}
Conspiracy
Enchantment
As Conspiracy enters the battlefield, choose a creature type.
Creatures you control are the chosen type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.
{2}{B}
Crypt Rats
Creature - Rat
{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.
1 /
1
--
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.
{1}{B}
Deadly Designs
Enchantment
{2}: Put a plot counter on Deadly Designs. Any player may activate this ability.
When there are five or more plot counters on Deadly Designs, sacrifice it. If you do, destroy up to two target creatures.
{4}
Door of Destinies
Artifact
As Door of Destinies enters the battlefield, choose a creature type.
Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies.
Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.
{X}{B}{B}
Exsanguinate
Sorcery
Each opponent loses X life. You gain life equal to the life lost this way.
{1}{B}{B}
Hero's Downfall
Instant
Destroy target creature or planeswalker.
{2}{B}
Infected Vermin
Creature - Rat
{2}{B}: Infected Vermin deals 1 damage to each creature and each player.
Threshold -- {3}{B}: Infected Vermin deals 3 damage to each creature and each player. Activate only if seven or more cards are in your graveyard.
1 /
1
{B}
Lab Rats
Sorcery
Buyback {4} (You may pay an additional {4} as you cast this spell. If you do, put this card into your hand as it resolves.)
Create a 1/1 black Rat creature token.
{4}
Lich's Tomb
Artifact
You don't lose the game for having 0 or less life.
Whenever you lose life, sacrifice a permanent for each 1 life you lost. (Damage causes loss of life.)
{1}
Manifold Key
Artifact
{1}, {T}: Untap another target artifact.
{3}, {T}: Target creature can't be blocked this turn.
{3}{B}{B}
Marrow-Gnawer
Legendary Creature - Rat Rogue
All Rats have fear.
{T}, Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.
2 /
3
--
Memorial to Folly
Land
Memorial to Folly enters the battlefield tapped.
{T}: Add {B}.
{2}{B}, {T}, Sacrifice Memorial to Folly: Return target creature card from your graveyard to your hand.
--
Mortuary Mire
Land
Mortuary Mire enters the battlefield tapped.
When Mortuary Mire enters the battlefield, you may put target creature card from your graveyard on top of your library.
{T}: Add {B}.
{6}
Obelisk of Urd
Artifact
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
As Obelisk of Urd enters the battlefield, choose a creature type.
Creatures you control of the chosen type get +2/+2.
{3}{B}{B}
Ogre Slumlord
Creature - Ogre Rogue
Whenever another nontoken creature dies, you may create a 1/1 black Rat creature token.
Rats you control have deathtouch.
3 /
3
{1}{B}
Pack Rat
Creature - Rat
Pack Rat's power and toughness are each equal to the number of Rats you control.
{2}{B}, Discard a card: Create a token that's a copy of Pack Rat.
* /
*
{2}{B}
Pestilence Rats
Creature - Rat
Pestilence Rats's power is equal to the number of other Rats on the battlefield. (For example, as long as there are two other Rats on the battlefield, Pestilence Rats's power and toughness are 2/3.)
* /
3
{1}{B}{B}
Phyrexian Arena
Enchantment
At the beginning of your upkeep, you draw a card and you lose 1 life.
{1}{B}
Piper of the Swarm
Creature - Human Warlock
Rats you control have menace.
{1}{B}, {T}: Create a 1/1 black Rat creature token.
{2}{B}{B}, {T}, Sacrifice three Rats: Gain control of target creature.
1 /
3
{7}{B}{B}
Plague Wind
Sorcery
Destroy all creatures you don't control. They can't be regenerated.
{6}{B}
Plague of Vermin
Sorcery
Starting with you, each player may pay any amount of life. Repeat this process until no one pays life. Each player creates a 1/1 black Rat creature token for each 1 life they paid this way.
{1}{B}
Rat Colony
Creature - Rat
Rat Colony gets +1/+0 for each other Rat you control.
A deck can have any number of cards named Rat Colony.
2 /
1
{1}{B}
Rat Colony
Creature - Rat
Rat Colony gets +1/+0 for each other Rat you control.
A deck can have any number of cards named Rat Colony.
2 /
1
{1}{B}
Rat Colony
Creature - Rat
Rat Colony gets +1/+0 for each other Rat you control.
A deck can have any number of cards named Rat Colony.
2 /
1
{1}{B}
Rat Colony
Creature - Rat
Rat Colony gets +1/+0 for each other Rat you control.
A deck can have any number of cards named Rat Colony.
2 /
1
{1}{B}
Rat Colony
Creature - Rat
Rat Colony gets +1/+0 for each other Rat you control.
A deck can have any number of cards named Rat Colony.
2 /
1
{4}{B}{B}
Ratcatcher
Creature - Ogre Rogue
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
At the beginning of your upkeep, you may search your library for a Rat card, reveal it, put it into your hand, then shuffle.
4 /
4
{1}{B}{B}
Relentless Rats
Creature - Rat
Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
2 /
2
{1}{B}{B}
Relentless Rats
Creature - Rat
Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
2 /
2
{1}{B}{B}
Relentless Rats
Creature - Rat
Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
2 /
2
{1}{B}{B}
Relentless Rats
Creature - Rat
Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
2 /
2
{1}{B}{B}
Relentless Rats
Creature - Rat
Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
2 /
2
{1}{B}{B}
Relentless Rats
Creature - Rat
Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
2 /
2
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
{2}
Suspicious Bookcase
Artifact Creature - Wall
Defender
{3}, {T}: Target creature can't be blocked this turn.
0 /
4
--
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}
Swarm of Rats
Creature - Rat
Swarm of Rats's power is equal to the number of Rats you control.
* /
1
{B}
Typhoid Rats
Creature - Rat
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
1 /
1
{4}{B}{B}
Vraska, Scheming Gorgon
Legendary Planeswalker - Vraska
+2: Creatures you control get +1/+0 until end of turn.
-3: Destroy target creature.
-10: Until end of turn, creatures you control gain deathtouch and "Whenever this creature deals damage to an opponent, that player loses the game."