Umbris, Fear Manifest - Built around Tasha's Hideous Laughter, Leyline of the Void and Spellskite

Spellskite

Artifact Creature — Phyrexian Horror

$7.35

{U/P}: Change a target of target spell or ability to this creature. ({U/P} can be paid with either {U} or 2 life.)

Grazilaxx, Illithid Scholar

Legendary Creature — Horror

$1.44

Whenever a creature you control becomes blocked, you may return it to its owner's hand. Whenever one or more creatures you control deal combat damage to a player, draw a card.

Captain N'ghathrod

Legendary Creature — Horror Pirate

$13.83

Horrors you control have menace. Whenever a Horror you control deals combat damage to a player, that player mills that many cards. At the beginning of your end step, choose target artifact or creature card in an opponent's graveyard that was put there from their library this turn. Put it onto the battlefield under your control.

Uchuulon

Creature — Crab Ooze Horror

$3.34

Uchuulon's power is equal to the number of Crabs, Oozes, and/or Horrors you control. Horrific Symbiosis — At the beginning of your end step, exile up to one target creature card from an opponent's graveyard. If you do, create a token that's a copy of this creature.

Silent Hallcreeper

Enchantment Creature — Horror

$1.11

This creature can't be blocked. Whenever this creature deals combat damage to a player, choose one that hasn't been chosen — • Put two +1/+1 counters on this creature. • Draw a card. • This creature becomes a copy of another target creature you control.

Yarok's Fenlurker

Creature — Horror

$0.37

When this creature enters, each opponent exiles a card from their hand. {2}{B}: This creature gets +1/+1 until end of turn.

Falthis, Shadowcat Familiar

Legendary Creature — Nightmare Cat

$0.32

Commanders you control have menace and deathtouch. Partner (You can have two commanders if both have partner.)

Grimdancer

Creature — Nightmare

$0.13

This creature enters with your choice of two different counters on it from among menace, deathtouch, and lifelink.

Misery's Shadow

Creature — Shade

$0.21

If a creature an opponent controls would die, exile it instead. {1}: This creature gets +1/+1 until end of turn.

Dread Presence

Creature — Nightmare

$3.39

Whenever a Swamp you control enters, choose one — • You draw a card and you lose 1 life. • This creature deals 2 damage to any target and you gain 2 life.

Ancient Cellarspawn

Enchantment Creature — Horror

$6.35

Each spell you cast that's a Demon, Horror, or Nightmare costs {1} less to cast. Whenever you cast a spell, if the amount of mana spent to cast it was less than its mana value, target opponent loses life equal to the difference.

Hullbreaker Horror

Creature — Kraken Horror

$6.03

Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.

Sludge Monster

Creature — Horror

$0.44

Whenever this creature enters or attacks, put a slime counter on up to one other target creature. Non-Horror creatures with slime counters on them lose all abilities and have base power and toughness 2/2.

The Mindskinner

Legendary Enchantment Creature — Nightmare

$3.02

The Mindskinner can't be blocked. If a source you control would deal damage to an opponent, prevent that damage and each opponent mills that many cards.

Consuming Aberration

Creature — Horror

$0.22

Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards. Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Ravenous Chupacabra

Creature — Beast Horror

$0.46

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

Zellix, Sanity Flayer

Legendary Creature — Horror

$28.35

Hive Mind — Whenever a player mills one or more creature cards, you create a 1/1 black Horror creature token. {1}, {T}: Target player mills three cards. Choose a Background (You can have a Background as a second commander.)

Nemesis of Reason

Creature — Leviathan Horror

$3.12

Whenever this creature attacks, defending player mills ten cards.

Dauthi Voidwalker

Creature — Dauthi Rogue

$3.82

Shadow (This creature can block or be blocked by only creatures with shadow.) If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. {T}, Sacrifice this creature: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.

Aboleth Spawn

Creature — Fish Horror

$6.97

Flash Ward {2} Probing Telepathy — Whenever a creature entering under an opponent's control causes a triggered ability of that creature to trigger, you may copy that ability. You may choose new targets for the copy.

Wharf Infiltrator

Creature — Human Horror

$0.33

Skulk (This creature can't be blocked by creatures with greater power.) Whenever this creature deals combat damage to a player, you may draw a card. If you do, discard a card. Whenever you discard a creature card, you may pay {2}. If you do, create a 3/2 colorless Eldrazi Horror creature token.

Sire of Stagnation

Creature — Eldrazi

$1.81

Devoid (This card has no color.) Whenever a land an opponent controls enters, that player exiles the top two cards of their library and you draw two cards.

Nightmare Shepherd

Enchantment Creature — Demon

$0.31

Flying Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's 1/1 and it's a Nightmare in addition to its other types.

Toxrill, the Corrosive

Legendary Creature — Slug Horror

$15.73

At the beginning of each end step, put a slime counter on each creature you don't control. Creatures you don't control get -1/-1 for each slime counter on them. Whenever a creature you don't control with a slime counter on it dies, create a 1/1 black Slug creature token. {U}{B}, Sacrifice a Slug: Draw a card.

Oblivion Sower

Creature — Eldrazi

$0.63

When you cast this spell, target opponent exiles the top four cards of their library, then you may put any number of land cards that player owns from exile onto the battlefield under your control.

Phyrexian Obliterator

Creature — Phyrexian Horror

$9.46

Trample Whenever a source deals damage to this creature, that source's controller sacrifices that many permanents of their choice.

Fear of Impostors

Enchantment Creature — Nightmare

$0.24

Flash When this creature enters, counter target spell. Its controller manifests dread. (That player looks at the top two cards of their library, then puts one onto the battlefield face down as a 2/2 creature and the other into their graveyard. If it's a creature card, it can be turned face up any time for its mana cost.)

Overlord of the Floodpits

Enchantment Creature — Avatar Horror

$2.19

Impending 4—{1}{U}{U} (If you cast this spell for its impending cost, it enters with four time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.) Flying Whenever this permanent enters or attacks, draw two cards, then discard a card.

Doomsday Excruciator

Creature — Demon

$1

Flying When this creature enters, if it was cast, each player exiles all but the bottom six cards of their library face down. At the beginning of your upkeep, draw a card.

Overcharged Amalgam

Creature — Zombie Horror

$0.38

Flash Flying Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, counter target spell, activated ability, or triggered ability.

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.

Counterspell

Instant

$1.33

Counter target spell.

Dark Ritual

Instant

$0.44

Add {B}{B}{B}.

Reality Shift

Instant

$0.25

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

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.")

Drown in Dreams

Instant

$1.05

Choose one. If you control a commander as you cast this spell, you may choose both instead. • Target player draws X cards. • Target player mills twice X cards.

Tasha's Hideous Laughter

Sorcery

$2.72

Each opponent exiles cards from the top of their library until that player has exiled cards with total mana value 20 or greater.

Maddening Cacophony

Sorcery

$6.16

Kicker {3}{U} Each opponent mills eight cards. If this spell was kicked, instead each opponent mills half their library, rounded up.

Essence Harvest

Sorcery

$0.35

Target player loses X life and you gain X life, where X is the greatest power among creatures you control.

Fractured Sanity

Sorcery

$2.36

Each opponent mills fourteen cards. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) When you cycle this card, each opponent mills four cards.

Singularity Rupture

Sorcery

$0.53

Destroy all creatures, then any number of target players each mill half their library, rounded down.

Lantern of the Lost

Artifact

$0.28

When this artifact enters, exile target card from a graveyard. {1}, {T}, Exile this artifact: Exile all cards from all graveyards, then draw a card.

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.

Fellwar Stone

Artifact

$0.57

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

Commander's Sphere

Artifact

$0.18

{T}: Add one mana of any color in your commander's color identity. Sacrifice this artifact: Draw a card.

Sky Diamond

Artifact

$0.25

This artifact enters tapped. {T}: Add {U}.

Charcoal Diamond

Artifact

$0.25

This artifact enters tapped. {T}: Add {B}.

Thran Dynamo

Artifact

$1.96

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

Chromatic Lantern

Artifact

$0.47

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

Leyline of the Void

Enchantment

$0.36

If this card is in your opening hand, you may begin the game with it on the battlefield. If a card would be put into an opponent's graveyard from anywhere, exile it instead.

Planar Void

Enchantment

$4.6

Whenever another card is put into a graveyard from anywhere, exile that card.

Web of Inertia

Enchantment

$0.46

At the beginning of combat on each opponent's turn, that player may exile a card from their graveyard. If the player doesn't, creatures they control can't attack you this turn.

Gravestorm

Enchantment

$6.59

At the beginning of your upkeep, target opponent may exile a card from their graveyard. If that player doesn't, you may draw a card.

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.)

Ashiok, Nightmare Muse

Legendary Planeswalker — Ashiok

$3.35

+1: Create a 2/3 blue and black Nightmare creature token with "Whenever this token attacks or blocks, each opponent exiles the top two cards of their library." −3: Return target nonland permanent to its owner's hand, then that player exiles a card from their hand. −7: You may cast up to three spells from among face-up cards your opponents own from exile without paying their mana costs.

Ashiok, Dream Render

Legendary Planeswalker — Ashiok

$1.36

Spells and abilities your opponents control can't cause their controller to search their library. −1: Target player mills four cards. Then exile each opponent's graveyard.

Bojuka Bog

Land

$0.99

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

Rogue's Passage

Land

$0.29

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

Scavenger Grounds

Land — Desert

$0.27

{T}: Add {C}. {2}, {T}, Sacrifice a Desert: Exile all graveyards.

Reliquary Tower

Land

$4.19

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

Nephalia Drownyard

Land

$0.32

{T}: Add {C}. {1}{U}{B}, {T}: Target player mills three cards.

Witch's Clinic

Land

$3.88

{T}: Add {C}. {2}, {T}: Target commander gains lifelink until end of turn.

Pit of Offerings

Land — Cave

$0.36

This land enters tapped. When this land enters, exile up to three target cards from graveyards. {T}: Add {C}. {T}: Add one mana of any of the exiled cards' colors.

Command Beacon

Land

$8.34

{T}: Add {C}. {T}, Sacrifice this land: Put your commander into your hand from the command zone.

Temple of the False God

Land

$0.19

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

The Black Gate

Legendary Land — Gate

$9.36

As The Black Gate enters, you may pay 3 life. If you don't, it enters tapped. {T}: Add {B}. {1}{B}, {T}: Choose a player with the most life or tied for most life. Target creature can't be blocked by creatures that player controls this turn.

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.

Secret Tunnel

Land — Cave

$2.35

This land can't be blocked. {T}: Add {C}. {4}, {T}: Two target creatures you control that share a creature type can't be blocked this turn.

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.

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.

Creeping Tar Pit

Land

$0.34

This land enters tapped. {T}: Add {U} or {B}. {1}{U}{B}: Until end of turn, this land becomes a 3/2 blue and black Elemental creature. It's still a land. It can't be blocked this turn.

Minas Morgul, Dark Fortress

Legendary Land

$14.39

Minas Morgul enters tapped. {T}: Add {B}. {3}{B}, {T}: Put a shadow counter on target creature. For as long as that creature has a shadow counter on it, it's a Wraith in addition to its other types. (A creature with shadow can block or be blocked by only creatures with shadow.)

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.