Vren, the Relentless - Built around Piper of the Swarm, Marrow-Gnawer and Lord Skitter, Sewer King

Piper of the Swarm

Creature — Human Warlock

$1.35

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.

Marrow-Gnawer

Legendary Creature — Rat Rogue

$17.99

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.

Lord Skitter, Sewer King

Legendary Creature — Rat Noble

$4.86

Whenever another Rat you control enters, exile up to one target card from an opponent's graveyard. At the beginning of combat on your turn, create a 1/1 black Rat creature token with "This token can't block."

Ogre Slumlord

Creature — Ogre Rogue

$0.3

Whenever another nontoken creature dies, you may create a 1/1 black Rat creature token. Rats you control have deathtouch.

Karumonix, the Rat King

Legendary Creature — Phyrexian Rat

$0.89

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Other Rats you control have toxic 1. When Karumonix enters, look at the top five cards of your library. You may reveal any number of Rat cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order.

Valley Rotcaller

Creature — Squirrel Warlock

$1.97

Menace Whenever this creature attacks, each opponent loses X life and you gain X life, where X is the number of other Squirrels, Bats, Lizards, and Rats you control.

Accursed Marauder

Creature — Zombie Warrior

$0.34

When this creature enters, each player sacrifices a nontoken creature of their choice.

Persistent Marshstalker

Creature — Rat Berserker

$0.28

This creature gets +1/+0 for each other Rat you control. Threshold — Whenever you attack with one or more Rats, if there are seven or more cards in your graveyard, you may pay {2}{B}. If you do, return this card from your graveyard to the battlefield tapped and attacking.

Tangled Colony

Creature — Rat

$0.76

This creature can't block. When this creature dies, create X 1/1 black Rat creature tokens with "This token can't block," where X is the amount of damage dealt to it this turn.

Swarm of Rats

Creature — Rat

$0.68

Swarm of Rats's power is equal to the number of Rats you control.

Pestilence Rats

Creature — Rat

$0.32

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.)

Voracious Vermin

Creature — Rat

$0.32

When this creature enters, create a 1/1 black Rat creature token with "This token can't block." Whenever another creature you control dies, put a +1/+1 counter on this creature.

Lord Skitter's Butcher

Creature — Rat Peasant

$0.32

When this creature enters, choose one — • Create a 1/1 black Rat creature token with "This token can't block." • You may sacrifice another creature. If you do, scry 2, then draw a card. • Creatures you control gain menace until end of turn.

Pack Rat

Creature — Rat

$2.51

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 this creature.

Ashcoat of the Shadow Swarm

Legendary Creature — Rat Warlock

$3.26

Whenever Ashcoat attacks or blocks, other Rats you control get +X/+X until end of turn, where X is the number of Rats you control. At the beginning of your end step, you may mill four cards. If you do, return up to two Rat creature cards from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)

Azure Beastbinder

Creature — Rat Rogue

$0.51

Vigilance This creature can't be blocked by creatures with power 2 or greater. Whenever this creature attacks, up to one target artifact, creature, or planeswalker an opponent controls loses all abilities until your next turn. If it's a creature, it also has base power and toughness 2/2 until your next turn.

Plaguecrafter

Creature — Human Shaman

$0.34

When this creature enters, each player sacrifices a creature or planeswalker of their choice. Each player who can't discards a card.

Shoreline Looter

Creature — Rat Rogue

$0.31

This creature can't be blocked. Threshold — Whenever this creature deals combat damage to a player, draw a card. Then discard a card unless there are seven or more cards in your graveyard.

Fleshbag Marauder

Creature — Zombie Warrior

$0.2

When this creature enters, each player sacrifices a creature of their choice.

Braids, Arisen Nightmare

Legendary Creature — Nightmare

$4.12

At the beginning of your end step, you may sacrifice an artifact, creature, enchantment, land, or planeswalker. If you do, each opponent may sacrifice a permanent of their choice that shares a card type with it. For each opponent who doesn't, that player loses 2 life and you draw a card.

Demon's Disciple

Creature — Human Cleric

$0.29

When this creature enters, each player sacrifices a creature or planeswalker of their choice.

Mindwhisker

Creature — Rat Wizard

$0.21

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Threshold — As long as there are seven or more cards in your graveyard, creatures your opponents control get -1/-0.

Merciless Executioner

Creature — Orc Warrior

$0.36

When this creature enters, each player sacrifices a creature of their choice.

Ayara, First of Locthwain

Legendary Creature — Elf Noble

$3.57

Whenever Ayara or another black creature you control enters, each opponent loses 1 life and you gain 1 life. {T}, Sacrifice another black creature: Draw a card.

Typhoid Rats

Creature — Rat

$0.21

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Crypt Rats

Creature — Rat

$0.58

{X}: This creature deals X damage to each creature and each player. Spend only black mana on X.

Rankle, Master of Pranks

Legendary Creature — Faerie Rogue

$2.51

Flying, haste Whenever Rankle deals combat damage to a player, choose any number — • Each player discards a card. • Each player loses 1 life and draws a card. • Each player sacrifices a creature of their choice.

Mirkwood Bats

Creature — Bat

$0.85

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

Rat Colony

Creature — Rat

$4.55

This creature gets +1/+0 for each other Rat you control. A deck can have any number of cards named Rat Colony.

Burglar Rat

Creature — Rat

$0.2

When this creature enters, each opponent discards a card.

Chittering Witch

Creature — Human Warlock

$0.34

When this creature enters, 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.

Tidecaller Mentor

Creature — Rat Wizard

$0.2

Menace Threshold — When this creature enters, if there are seven or more cards in your graveyard, return up to one target nonland permanent to its owner's hand.

Priest of Forgotten Gods

Creature — Human Cleric

$0.62

{T}, Sacrifice two other creatures: Any number of target players each lose 2 life and sacrifice a creature of their choice. You add {B}{B} and draw a card. (Activate only as an instant.)

Nashi, Moon Sage's Scion

Legendary Creature — Rat Ninja

$3.25

Ninjutsu {3}{B} ({3}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Nashi deals combat damage to a player, exile the top card of each player's library. Until end of turn, you may play one of those cards. If you cast a spell this way, pay life equal to its mana value rather than paying its mana cost.

Ink-Eyes, Servant of Oni

Legendary Creature — Rat Ninja

$10.44

Ninjutsu {3}{B}{B} ({3}{B}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Ink-Eyes deals combat damage to a player, you may put target creature card from that player's graveyard onto the battlefield under your control. {1}{B}: Regenerate Ink-Eyes.

Thornplate Intimidator

Creature — Rat Rogue

$0.09

Offspring {3} (You may pay an additional {3} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) When this creature enters, target opponent loses 3 life unless they sacrifice a nonland permanent of their choice or discard a card.

Morbid Opportunist

Creature — Human Rogue

$0.22

Whenever one or more other creatures die, draw a card. This ability triggers only once each turn.

Rat King, Verminister

Legendary Creature — Rat Avatar

$0.69

Disappear — At the beginning of your end step, if a permanent left the battlefield under your control this turn, create a 1/1 black Rat creature token and put a +1/+1 counter on Rat King. {T}, Sacrifice three Rats: Return target creature card and all other cards with the same name as that card from your graveyard to the battlefield tapped.

Gravelighter

Creature — Spirit

$0.3

Flying When this creature enters, draw a card if a creature died this turn. Otherwise, each player sacrifices a creature of their choice.

Rat King, Pale Piper

Legendary Creature — Rat Avatar

$0.37

Menace Whenever Rat King or another nontoken creature you control leaves the battlefield, create a 1/1 black Rat creature token. {2}, Sacrifice a token: Draw a card.

Mind Drill Assailant

Creature — Rat Warlock

$0.12

Threshold — As long as there are seven or more cards in your graveyard, this creature gets +3/+0. {2}{U/B}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Throat Slitter

Creature — Rat Ninja

$2.48

Ninjutsu {2}{B} ({2}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever this creature deals combat damage to a player, destroy target nonblack creature that player controls.

Enduring Curiosity

Enchantment Creature — Cat Glimmer

$6.4

Flash Whenever a creature you control deals combat damage to a player, draw a card. When Enduring Curiosity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Thought Shucker

Creature — Rat Rogue

$0.1

Threshold — {1}{U}: Put a +1/+1 counter on this creature and draw a card. Activate only if there are seven or more cards in your graveyard and only once.

Archfiend of Depravity

Creature — Demon

$0.37

Flying At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Undercity Dire Rat

Creature — Rat

$0.15

Rat Tail — When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Counterspell

Instant

$1.33

Counter target spell.

Sheoldred's Edict

Instant

$1.19

Choose one — • Each opponent sacrifices a nontoken creature of their choice. • Each opponent sacrifices a creature token of their choice. • Each opponent sacrifices a planeswalker of their choice.

Dark Ritual

Instant

$0.44

Add {B}{B}{B}.

Deadly Dispute

Instant

$0.26

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Feed the Swarm

Sorcery

$0.22

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Swarmyard Massacre

Sorcery

$4.54

Create two 1/1 green Squirrel creature tokens. Then each creature that isn't an Insect, Rat, Spider, or Squirrel gets -1/-1 until end of turn for each creature you control that's an Insect, Rat, Spider, or Squirrel.

Sword of the Squeak

Artifact — Equipment

$1.13

Equipped creature gets +1/+1 for each creature you control with base power or toughness 1. Whenever a Hamster, Mouse, Rat, or Squirrel you control enters, you may attach this Equipment to that creature. Equip {2}

Ashnod's Altar

Artifact

$8.15

Sacrifice a creature: Add {C}{C}.

Wayfarer's Bauble

Artifact

$0.31

{2}, {T}, Sacrifice this artifact: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Sol Ring

Artifact

$1.02

{T}: Add {C}{C}.

Arcane Signet

Artifact

$0.38

{T}: Add one mana of any color in your commander's color identity.

Dimir Signet

Artifact

$0.3

{1}, {T}: Add {U}{B}.

Talisman of Dominance

Artifact

$0.44

{T}: Add {C}. {T}: Add {U} or {B}. This artifact deals 1 damage to you.

Patchwork Banner

Artifact

$1.53

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. {T}: Add one mana of any color.

Fellwar Stone

Artifact

$0.57

{T}: Add one mana of any color that a land an opponent controls could produce.

Black Market Connections

Enchantment

$10.47

At the beginning of your first main phase, choose one or more — • Sell Contraband — Create a Treasure token. You lose 1 life. • Buy Information — Draw a card. You lose 2 life. • Hire a Mercenary — Create a 3/2 colorless Shapeshifter creature token with changeling. You lose 3 life. (It is every creature type.)

Black Market

Enchantment

$5.04

Whenever a creature dies, put a charge counter on this enchantment. At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

Swarmyard

Land

$5.22

{T}: Add {C}. {T}: Regenerate target Insect, Rat, Spider, or Squirrel. (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Bojuka Bog

Land

$0.99

This land enters tapped. When this land enters, exile target player's graveyard. {T}: Add {B}.

Mudflat Village

Land

$0.36

{T}: Add {C}. {T}: Add {B}. Spend this mana only to cast a creature spell. {1}{B}, {T}, Sacrifice this land: Return target Bat, Lizard, Rat, or Squirrel card from your graveyard to your hand.

Reliquary Tower

Land

$4.19

You have no maximum hand size. {T}: Add {C}.

Lilypad Village

Land

$0.32

{T}: Add {C}. {T}: Add {U}. Spend this mana only to cast a creature spell. {U}, {T}: Surveil 2. Activate only if a Bird, Frog, Otter, or Rat entered the battlefield under your control this turn.

Rogue's Passage

Land

$0.29

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

Takenuma, Abandoned Mire

Legendary Land

$10.68

{T}: Add {B}. Channel — {3}{B}, Discard this card: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.

Witch's Cottage

Land — Swamp

$0.4

({T}: Add {B}.) This land enters tapped unless you control three or more other Swamps. When this land enters untapped, you may put target creature card from your graveyard on top of your library.

Mystic Sanctuary

Land — Island

$1

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

Susur Secundi, Void Altar

Land — Planet

$4.78

This land enters tapped. {T}: Add {B}. Station (Tap another creature you control: Put charge counters equal to its power on this Planet. Station only as a sorcery.) 12+ | {1}{B}, {T}, Pay 2 life, Sacrifice a creature: Draw cards equal to the sacrificed creature's power. Activate only as a sorcery.

Castle Locthwain

Land

$1.38

This land enters tapped unless you control a Swamp. {T}: Add {B}. {1}{B}{B}, {T}: Draw a card, then you lose life equal to the number of cards in your hand.

Command Tower

Land

$0.24

{T}: Add one mana of any color in your commander's color identity.

Sunken Hollow

Land — Island Swamp

$0.29

({T}: Add {U} or {B}.) This land enters tapped unless you control two or more basic lands.

Drowned Catacomb

Land

$0.47

This land enters tapped unless you control an Island or a Swamp. {T}: Add {U} or {B}.

Tainted Isle

Land

$1.71

{T}: Add {C}. {T}: Add {U} or {B}. Activate only if you control a Swamp.

Choked Estuary

Land

$0.3

As this land enters, you may reveal an Island or Swamp card from your hand. If you don't, this land enters tapped. {T}: Add {U} or {B}.

Watery Grave

Land — Island Swamp

$9.85

({T}: Add {U} or {B}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Shipwreck Marsh

Land

$1.32

This land enters tapped unless you control two or more other lands. {T}: Add {U} or {B}.