Whenever Ayara, First of Locthwain or another black creature enters the battlefield under your control, each opponent loses 1 life and you gain 1 life.
{T}, Sacrifice another black creature: Draw a card.
2 /
3
{1}{B}
Bad Moon
Enchantment
Black creatures get +1/+1.
{1}{B}
Bladebrand
Instant
Target creature gains deathtouch until end of turn.
Draw a card.
{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.
{1}{B}
Burglar Rat
Creature - Rat
When Burglar Rat enters the battlefield, each opponent discards a card.
1 /
1
{B}
Carrion Rats
Creature - Rat
Whenever Carrion Rats attacks or blocks, any player may exile a card from their graveyard. If a player does, Carrion Rats assigns no combat damage this turn.
2 /
1
{1}{B}
Cast Down
Instant
Destroy target nonlegendary creature.
--
Chittering Host
Creature - Eldrazi Horror
Haste
Menace (This creature can't be blocked except by two or more creatures.)
When Chittering Host enters the battlefield, other creatures you control get +1/+0 and gain menace until end of turn.
5 /
6
{1}{B}{B}
Chittering Rats
Creature - Rat
When Chittering Rats enters the battlefield, target opponent puts a card from their hand on top of their library.
2 /
2
{3}{B}
Chittering Witch
Creature - Human Warlock
When Chittering Witch enters the battlefield, create a number of 1/1 black Rat creature tokens equal to the number of opponents you have.
{1}{B}, Sacrifice a creature: Target creature gets -2/-2 until end of turn.
2 /
2
{3}{B}{B}
Consume the Meek
Instant
Destroy each creature with mana value 3 or less. They can't be regenerated.
{1}{B}
Cradle to Grave
Instant
Destroy target nonblack creature that entered the battlefield this turn.
{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
{B}
Dark Ritual
Instant
Add {B}{B}{B}.
{3}{B}{B}
Death Pits of Rath
Enchantment
Whenever a creature is dealt damage, destroy it. It can't be regenerated.
{5}{B}
Death Rattle
Instant
Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Destroy target nongreen creature. It can't be regenerated.
{2}{B}
Deathmask Nezumi
Creature - Rat Shaman
As long as you have seven or more cards in hand, Deathmask Nezumi gets +2/+1 and has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
2 /
2
{3}{B}
Dirty Wererat
Creature - Human Rat Minion
{B}, Discard a card: Regenerate Dirty Wererat.
Threshold -- As long as seven or more cards are in your graveyard, Dirty Wererat gets +2/+2 and can't block.
2 /
3
{2}{B}{B}
Disease Carriers
Creature - Rat
When Disease Carriers dies, target creature gets -2/-2 until end of turn.
2 /
2
{2}{B}
Diseased Vermin
Creature - Rat
Whenever Diseased Vermin deals combat damage to a player, put an infection counter on it.
At the beginning of your upkeep, Diseased Vermin deals X damage to target opponent previously dealt damage by it, where X is the number of infection counters on it.
1 /
1
{1}{B}
Doom Blade
Instant
Destroy target nonblack creature.
{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.
{2}{B}{B}
Drag to the Underworld
Instant
This spell costs {X} less to cast, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)
Destroy target creature.
{B}
Drainpipe Vermin
Creature - Rat
When Drainpipe Vermin dies, you may pay {B}. If you do, target player discards a card.
1 /
1
{X}{4}{B}
Dregs of Sorrow
Sorcery
Destroy X target nonblack creatures. Draw X cards.
{3}{B}
Earsplitting Rats
Creature - Rat
When Earsplitting Rats enters the battlefield, each player discards a card.
Discard a card: Regenerate Earsplitting Rats.
2 /
1
--
Everglades
Land
Everglades enters the battlefield tapped.
When Everglades enters the battlefield, sacrifice it unless you return an untapped Swamp you control to its owner's hand.
{T}: Add {C}{B}.
{3}{B}
Eviscerate
Sorcery
Destroy target creature.
{B}
Foul-Tongue Shriek
Instant
Target opponent loses 1 life for each attacking creature you control. You gain that much life.
{B}
Gnat Miser
Creature - Rat Shaman
Each opponent's maximum hand size is reduced by one.
1 /
1
{1}{B}
Graf Rats
Creature - Rat
At the beginning of combat on your turn, if you both own and control Graf Rats and a creature named Midnight Scavengers, exile them, then meld them into Chittering Host.
2 /
1
{3}
Hall of Triumph
Legendary Artifact
As Hall of Triumph enters the battlefield, choose a color.
Creatures you control of the chosen color get +1/+1.
{3}
Heraldic Banner
Artifact
As Heraldic Banner enters the battlefield, choose a color.
Creatures you control of the chosen color get +1/+0.
{T}: Add one mana of the chosen color.
{3}
Icon of Ancestry
Artifact
As Icon of Ancestry enters the battlefield, choose a creature type.
Creatures you control of the chosen type get +1/+1.
{3}, {T}: Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
{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
{1}{B}{B}
Infinite Obliteration
Sorcery
Choose a creature card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles.
{1}{B}
Kuro's Taken
Creature - Rat Samurai
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
{1}{B}: Regenerate Kuro's Taken.
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.
{2}{B}{B}
Locust Miser
Creature - Rat Shaman
Each opponent's maximum hand size is reduced by two.
2 /
2
{3}{B}
Memoricide
Sorcery
Choose a nonland card name. Search target player's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles.
{4}{B}
Midnight Scavengers
Creature - Human Rogue
When Midnight Scavengers enters the battlefield, you may return target creature card with mana value 3 or less from your graveyard to your hand.
(Melds with Graf Rats.)
3 /
3
{2}
Mind Stone
Artifact
{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.
{B}
Muck Rats
Creature - Rat
1 /
1
{2}{B}{B}
Mutilate
Sorcery
All creatures get -1/-1 until end of turn for each Swamp you control.
{2}{B}{B}
Nekrataal
Creature - Human Assassin
First strike
When Nekrataal enters the battlefield, destroy target nonartifact, nonblack creature. That creature can't be regenerated.
2 /
1
{1}{B}
Nezumi Cutthroat
Creature - Rat Warrior
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
Nezumi Cutthroat can't block.
2 /
1
{1}{B}
Nezumi Graverobber
Creature - Rat Rogue
{1}{B}: Exile target card from an opponent's graveyard. If no cards are in that graveyard, flip Nezumi Graverobber.
2 /
1
--
Nighteyes the Desecrator
Legendary Creature - Rat Wizard
{4}{B}: Put target creature card from a graveyard onto the battlefield under your control.
2 /
1
{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}
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
{1}{B}
Rancid Rats
Creature - Zombie Rat
Skulk (This creature can't be blocked by creatures with greater power.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
1 /
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
{2}
Ratchet Bomb
Artifact
{T}: Put a charge counter on Ratchet Bomb.
{T}, Sacrifice Ratchet Bomb: Destroy each nonland permanent with mana value equal to the number of charge counters on Ratchet Bomb.
{1}{B}
Ravenous Rats
Creature - Rat
When Ravenous Rats enters the battlefield, target opponent discards a card.
1 /
1
{2}{B}
Razortooth Rats
Creature - Rat
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
2 /
1
{1}{B}
Rotting Rats
Creature - Zombie Rat
When Rotting Rats enters the battlefield, each player discards a card.
Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
1 /
1
{2}{B}
Scrib Nibblers
Creature - Rat
{T}: Exile the top card of target player's library. If it's a land card, you gain 1 life.
Landfall -- Whenever a land enters the battlefield under your control, you may untap Scrib Nibblers.
1 /
1
{B}
Sewer Rats
Creature - Rat
{B}, Pay 1 life: Sewer Rats gets +1/+0 until end of turn. Activate no more than three times each turn.
1 /
1
{B}{B}
Sign in Blood
Sorcery
Target player draws two cards and loses 2 life.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{1}{B}
Swarm of Rats
Creature - Rat
Swarm of Rats's power is equal to the number of Rats you control.
* /
1
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
{1}{B}
Terror
Instant
Destroy target nonartifact, nonblack creature. It can't be regenerated.
{B}
Typhoid Rats
Creature - Rat
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
1 /
1
{B}
Ulcerate
Instant
Target creature gets -3/-3 until end of turn. You lose 3 life.