Mirko, Obsessive Theorist - Built around Doom Whisperer, Consider and Unshakable Tail

Doom Whisperer

Creature — Nightmare Demon

$5.93

Flying, trample Pay 2 life: Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Unshakable Tail

Creature — Zombie Detective

$0.35

When this creature enters and at the beginning of your upkeep, surveil 1. Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") {2}, Sacrifice a Clue: Return this card from your graveyard to your hand.

Sinister Starfish

Creature — Starfish

$0.11

{T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Hexavus

Artifact Creature — Construct

$0.47

Flying This creature enters with six +1/+1 counters on it. {1}, Remove a +1/+1 counter from this creature: Put a flying counter on another target creature. {1}, Remove a counter from another creature you control: Put a +1/+1 counter on this creature.

Thrull Parasite

Creature — Thrull

$0.28

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) {T}, Pay 2 life: Remove a counter from target nonland permanent.

Watcher of Hours

Creature — Sphinx

$0.28

Flying, ward {3} Whenever you remove a time counter from this card while it's exiled, surveil 1. Suspend 6—{1}{U} (Rather than cast this card from your hand, you may pay {1}{U} and exile it with six time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)

Eye of Duskmantle

Creature — Eye

$0.26

Flying, lifelink You may play lands and cast spells from among cards in your graveyard you've surveilled this turn. If you cast a spell this way, you pay life equal to its mana value rather than paying its mana cost.

O'aka, Traveling Merchant

Legendary Creature — Human Citizen

$0.33

{T}, Remove a counter from a nonland permanent you control: Draw a card.

Soul Diviner

Creature — Zombie Wizard

$0.4

{T}, Remove a counter from an artifact, creature, land, or planeswalker you control: Draw a card.

Thoughtbound Phantasm

Creature — Spirit

$0.23

Defender Whenever you surveil, put a +1/+1 counter on this creature. As long as this creature has three or more +1/+1 counters on it, it can attack as though it didn't have defender.

Whispering Snitch

Creature — Vampire Rogue

$0.06

Whenever you surveil for the first time each turn, this creature deals 1 damage to each opponent and you gain 1 life.

Phyrexian Metamorph

Artifact Creature — Phyrexian Shapeshifter

$2.21

({U/P} can be paid with either {U} or 2 life.) You may have this creature enter as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

Dogged Detective

Creature — Human Rogue

$0.26

When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Whenever an opponent draws their second card each turn, you may return this card from your graveyard to your hand.

Nightveil Sprite

Creature — Faerie Rogue

$0.14

Flying Whenever this creature attacks, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Baleful Strix

Artifact Creature — Bird

$3.76

Flying, deathtouch When this creature enters, draw a card.

Massacre Wurm

Creature — Phyrexian Wurm

$2.43

When this creature enters, creatures your opponents control get -2/-2 until end of turn. Whenever a creature an opponent controls dies, that player loses 2 life.

Master of Death

Creature — Zombie Wizard

$0.3

When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) At the beginning of your upkeep, if this card is in your graveyard, you may pay 1 life. If you do, return it to your hand.

Ravenous Chupacabra

Creature — Beast Horror

$0.46

When this creature enters, destroy target creature an opponent controls.

Twilight Diviner

Creature — Elf Cleric

$2.88

When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Whenever one or more other creatures you control enter, if they entered or were cast from a graveyard, create a token that's a copy of one of them. This ability triggers only once each turn.

Matoya, Archon Elder

Legendary Creature — Human Warlock

$1.26

Whenever you scry or surveil, draw a card. (Draw after you scry or surveil.)

Syr Konrad, the Grim

Legendary Creature — Human Knight

$1.18

Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad deals 1 damage to each opponent. {1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)

Mulldrifter

Creature — Elemental

$0.29

Flying When this creature enters, draw two cards. Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Lazav, the Multifarious

Legendary Creature — Shapeshifter

$0.32

When Lazav enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {X}: Lazav becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability.

Dream Eater

Creature — Nightmare Sphinx

$0.36

Flash Flying When this creature enters, surveil 4. When you do, you may return target nonland permanent an opponent controls to its owner's hand. (To surveil 4, look at the top four cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Fain, the Broker

Legendary Creature — Human Warlock

$1.57

{T}, Sacrifice a creature: Put two +1/+1 counters on target creature. {T}, Remove a counter from a creature you control: Create a Treasure token. {T}, Sacrifice an artifact: Create a 2/1 white and black Inkling creature token with flying. {3}{B}: Untap Fain.

Vizier of Many Faces

Creature — Shapeshifter Cleric

$0.24

You may have this creature enter as a copy of any creature on the battlefield, except if this creature was embalmed, the token has no mana cost, it's white, and it's a Zombie in addition to its other types. Embalm {3}{U}{U}

Dimir Spybug

Creature — Insect

$0.19

Flying Menace (This creature can't be blocked except by two or more creatures.) Whenever you surveil, put a +1/+1 counter on this creature.

Spark Double

Creature — Illusion

$5

You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

Twilight Prophet

Creature — Vampire Cleric

$1.97

Flying Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) At the beginning of your upkeep, if you have the city's blessing, reveal the top card of your library and put it into your hand. Each opponent loses X life and you gain X life, where X is that card's mana value.

Shriekmaw

Creature — Elemental

$0.27

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) When this creature enters, destroy target nonartifact, nonblack creature. Evoke {1}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Gray Merchant of Asphodel

Creature — Zombie

$0.62

When this creature enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

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.

Overseer of the Damned

Creature — Demon

$0.25

Flying When this creature enters, you may destroy target creature. Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.

Starving Revenant

Creature — Spirit Horror

$0.31

When this creature enters, surveil 2. Then for each card you put on top of your library, you draw a card and you lose 3 life. Descend 8 — Whenever you draw a card, if there are eight or more permanent cards in your graveyard, target opponent loses 1 life and you gain 1 life.

Sheoldred, Whispering One

Legendary Creature — Phyrexian Praetor

$19.1

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) At the beginning of your upkeep, return target creature card from your graveyard to the battlefield. At the beginning of each opponent's upkeep, that player sacrifices a creature of their choice.

Solemn Simulacrum

Artifact Creature — Golem

$0.28

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

Archon of Cruelty

Creature — Archon

$1.47

Flying Whenever this creature enters or attacks, target opponent sacrifices a creature or planeswalker of their choice, discards a card, and loses 3 life. You draw a card and gain 3 life.

Sphinx of the Second Sun

Creature — Sphinx

$2.98

Flying At the beginning of each of your postcombat main phases, there is an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

Dimir Strandcatcher

Creature — Faerie Rogue

$0.82

Flying Whenever you attack, surveil X, where X is the number of opponents being attacked. At the beginning of each end step, if three or more cards were put into your graveyard from anywhere other than the battlefield this turn, draw a card.

Amphin Mutineer

Creature — Salamander Pirate

$0.21

When this creature enters, exile up to one target non-Salamander creature. That creature's controller creates a 4/3 blue Salamander Warrior creature token. Encore {4}{U}{U} ({4}{U}{U}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Evil Twin

Creature — Shapeshifter

$0.42

You may have this creature enter as a copy of any creature on the battlefield, except it has "{U}{B}, {T}: Destroy target creature with the same name as this creature."

Satoru, the Infiltrator

Legendary Creature — Human Ninja Rogue

$0.78

Menace Whenever Satoru and/or one or more other nontoken creatures you control enter, if none of them were cast or no mana was spent to cast them, draw a card.

Agent of Treachery

Creature — Human Rogue

$3.84

When this creature enters, gain control of target permanent. At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.

Marvo, Deep Operative

Legendary Creature — Octopus Rogue

$3.5

Whenever Marvo attacks, clash with defending player. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.) Whenever you win a clash, draw a card. Then you may cast a spell from your hand with mana value 8 or less without paying its mana cost.

Consider

Instant

$0.34

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Draw a card.

Otherworldly Gaze

Instant

$0.29

Surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Pile On

Instant

$0.35

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.) Destroy target creature or planeswalker. Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Price of Fame

Instant

$0.26

This spell costs {2} less to cast if it targets a legendary creature. Destroy target creature. Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Dark Ritual

Instant

$0.44

Add {B}{B}{B}.

Cyclonic Rift

Instant

$30.1

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Drag the Canal

Instant

$0.24

Create a 2/2 white and blue Detective creature token. If a creature died this turn, you gain 2 life, surveil 2, then investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Reanimate

Sorcery

$6.61

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to that card's mana value.

Toxic Deluge

Sorcery

$5.15

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

Power Conduit

Artifact

$3.31

{T}, Remove a counter from a permanent you control: Choose one — • Put a charge counter on target artifact. • Put a +1/+1 counter on target creature.

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.

Arcane Signet

Artifact

$0.38

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

Sol Ring

Artifact

$1.02

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

Talisman of Dominance

Artifact

$0.44

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

Dimir Signet

Artifact

$0.3

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

Fellwar Stone

Artifact

$0.57

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

Everflowing Chalice

Artifact

$0.28

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) This artifact enters with a charge counter on it for each time it was kicked. {T}: Add {C} for each charge counter on this artifact.

Case of the Shifting Visage

Enchantment — Case

$0.4

At the beginning of your upkeep, surveil 1. To solve — There are fifteen or more cards in your graveyard. (If unsolved, solve at the beginning of your end step.) Solved — Whenever you cast a nonlegendary creature spell, copy that spell. (The copy becomes a token.)

Enhanced Surveillance

Enchantment

$0.25

You may look at an additional two cards each time you surveil. Exile this enchantment: Shuffle your graveyard into your library.

Hostile Desert

Land — Desert

$0.24

{T}: Add {C}. {2}, Exile a land card from your graveyard: This land becomes a 3/4 Elemental creature until end of turn. It's still a land.

Bojuka Bog

Land

$0.99

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

Tocasia's Dig Site

Land

$0.26

{T}: Add {C}. {3}, {T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

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.

Nesting Grounds

Land

$0.29

{T}: Add {C}. {1}, {T}: Move a counter from target permanent you control onto a second target permanent. Activate only as a sorcery.

Rogue's Passage

Land

$0.29

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

Reliquary Tower

Land

$4.19

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

Drownyard Temple

Land

$0.24

{T}: Add {C}. {3}: Return this card from your graveyard to the battlefield tapped.

Temple of the False God

Land

$0.19

{T}: Add {C}{C}. Activate only if you control five or more lands.

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.

Geier Reach Sanitarium

Legendary Land

$0.78

{T}: Add {C}. {2}, {T}: Each player draws a card, then discards a card.

Spymaster's Vault

Land

$2.71

This land enters tapped unless you control a Swamp. {T}: Add {B}. {B}, {T}: Target creature you control connives X, where X is the number of creatures that died this turn. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.)

Cephalid Coliseum

Land

$0.28

{T}: Add {U}. This land deals 1 damage to you. Threshold — {U}, {T}, Sacrifice this land: Target player draws three cards, then discards three cards. Activate only if there are seven or more cards in your graveyard.

Restless Reef

Land

$1.61

This land enters tapped. {T}: Add {U} or {B}. {2}{U}{B}: Until end of turn, this land becomes a 4/4 blue and black Shark creature with deathtouch. It's still a land. Whenever this land attacks, target player mills four cards.

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.

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}.