Helm of the Host

At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary. That token gains haste.
Equip {5}

Necropotence

Skip your draw step.
Whenever you discard a card, exile that card from your graveyard.
Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Mindcrank

Whenever an opponent loses life, that player mills that many cards. (Damage causes loss of life.)

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Scour from Existence

Dark Deal

Each player discards all the cards in their hand, then draws that many cards minus one.

Mutilate

All creatures get -1/-1 until end of turn for each Swamp you control.

Aether Snap

Remove all counters from all permanents and exile all tokens.

Jet Medallion

Black spells you cast cost {1} less to cast.

Altar of the Brood

Whenever another permanent enters the battlefield under your control, each opponent mills a card.

Reito Lantern

{3}: Put target card from a graveyard on the bottom of its owner's library.

Worst Fears

You control target player during that player's next turn. Exile Worst Fears. (You see all cards that player could see and make all decisions for the player.)

Whip of Erebos

Creatures you control have lifelink.
{2}{B}{B}, {T}: Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. If it would leave the battlefield, exile it instead of putting it anywhere else. Activate only as a sorcery.

Grave Betrayal

Whenever a creature you don't control dies, return it to the battlefield under your control with an additional +1/+1 counter on it at the beginning of the next end step. That creature is a black Zombie in addition to its other colors and types.

Attrition

{B}, Sacrifice a creature: Destroy target nonblack creature.

Praetor's Grasp

Search target opponent's library for a card and exile it face down. Then that player shuffles. You may look at and play that card for as long as it remains exiled.

Claws of Gix

{1}, Sacrifice a permanent: You gain 1 life.

Extraplanar Lens

Imprint — When Extraplanar Lens enters the battlefield, you may exile target land you control.
Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Worry Beads

At the beginning of each player's upkeep, that player mills a card.

Dauthi Embrace

{B}{B}: Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Nirkana Revenant

Whenever you tap a Swamp for mana, add an additional {B}.
{B}: Nirkana Revenant gets +1/+1 until end of turn.

Vessel of Endless Rest

When Vessel of Endless Rest enters the battlefield, put target card from a graveyard on the bottom of its owner's library.
{T}: Add one mana of any color.

Junktroller

Defender
{T}: Put target card from a graveyard on the bottom of its owner's library.

Bolas's Citadel

You may look at the top card of your library any time.
You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Altar of Dementia

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

K'rrik, Son of Yawgmoth

({B/P} can be paid with either {B} or 2 life.)
Lifelink
For each {B} in a cost, you may pay 2 life rather than pay that mana.
Whenever you cast a black spell, put a +1/+1 counter on K'rrik, Son of Yawgmoth.

Strionic Resonator

{2}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words "when," "whenever," or "at.")

Ghastly Conscription

Exile all creature cards from target player's graveyard in a face-down pile, shuffle that pile, then manifest those cards. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Castle Locthwain

Castle Locthwain enters the battlefield 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.

Caged Sun

As Caged Sun enters the battlefield, choose a color.
Creatures you control of the chosen color get +1/+1.
Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

The Eldest Reborn

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Each opponent sacrifices a creature or planeswalker.
II — Each opponent discards a card.
III — Put target creature or planeswalker card from a graveyard onto the battlefield under your control.

Dark Ritual

Netherborn Altar

{T}, Put a soul counter on Netherborn Altar: Put your commander into your hand from the command zone. Then you lose 3 life for each soul counter on Netherborn Altar.

Deadly Rollick

If you control a commander, you may cast this spell without paying its mana cost.
Exile target creature.

Massacre Wurm

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

Rise of the Dark Realms

Put all creature cards from all graveyards onto the battlefield under your control.

Sheoldred, Whispering One

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.

Lithoform Engine

{2}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy.
{3}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.
{4}, {T}: Copy target permanent spell you control. (The copy becomes a token.)

Phyrexian Obliterator

Trample
Whenever a source deals damage to Phyrexian Obliterator, that source's controller sacrifices that many permanents.

Nykthos, Shrine to Nyx

{T}: Add {C}.
{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

Jeweled Lotus

{T}, Sacrifice Jeweled Lotus: Add three mana of any one color. Spend this mana only to cast your commander.

Command Beacon

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

Damnation

Destroy all creatures. They can't be regenerated.

Psychotic Episode

Target player reveals their hand and the top card of their library. You choose a card revealed this way. That player puts the chosen card on the bottom of their library.
Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Gray Merchant of Asphodel

When Gray Merchant of Asphodel enters the battlefield, 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.)

Urborg, Tomb of Yawgmoth

Each land is a Swamp in addition to its other land types.

Cogwork Archivist

Reach
{2}, {T}: Put target card from a graveyard on the bottom of its owner's library.

Author of Shadows

When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

Cunning Rhetoric

Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.

Stinging Study

You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.

Profane Tutor

Suspend 2—{1}{B} (Rather than cast this card from your hand, pay {1}{B} and exile it with two 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.)
Search your library for a card, put that card into your hand, then shuffle.

Cabal Coffers

{2}, {T}: Add {B} for each Swamp you control.

Dauthi Voidwalker

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 Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.

Animate Dead

Enchant creature card in a graveyard
When Animate Dead enters the battlefield, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Lightning Greaves

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}

Solemn Simulacrum

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

Gonti, Lord of Luxury

Deathtouch
When Gonti, Lord of Luxury enters the battlefield, look at the top four cards of target opponent's library, exile one of them face down, then put the rest on the bottom of that library in a random order. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

Expedition Map

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Demonic Tutor

Sol Ring

Phyrexian Arena

At the beginning of your upkeep, you draw a card and you lose 1 life.

Go for the Throat

Arcane Signet

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

Rogue's Passage

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

Swamp

Merciless Executioner

When Merciless Executioner enters the battlefield, each player sacrifices a creature.

Plaguecrafter

When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.

Fleshbag Marauder

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

Rakshasa Debaser

Whenever Rakshasa Debaser attacks, put target creature card from defending player's graveyard onto the battlefield under your control.
Encore {6}{B}{B} ({6}{B}{B}, 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.)

Demon's Disciple

When Demon's Disciple enters the battlefield, each player sacrifices a creature or planeswalker.

Because I Have Willed It

(An ongoing scheme remains face up until it's abandoned.)
Spells you cast cost {1} less to cast.
At the beginning of your opponents' end step, if they cast four or more spells this turn, abandon this scheme.

Bow to My Command

(An ongoing scheme remains face up until it's abandoned.)
As you set this scheme in motion, choose an opponent.
Creatures the chosen player controls can't attack you or planeswalkers you control.
At the beginning of your opponents' end step, they may tap any number of untapped creatures they control with total power 8 or greater. If they do, abandon this scheme.

Choose Your Demise

When you set this scheme in motion, look at the top four cards of your library and separate them into a face-down pile and a face-up pile. An opponent chooses one of those piles. Put the cards in that pile into your hand and the rest on the bottom of your library in any order.

Delight in the Hunt

When you set this scheme in motion, create a 3/3 black Horror creature token and prevent all damage that would be dealt to creatures you control this turn.

Every Dream a Nightmare

When you set this scheme in motion, each opponent discards a card. You draw a card for each land card discarded this way.

For Each of You, a Gift

When you set this scheme in motion, for each opponent, create a 3/3 black Horror creature token that attacks that player each combat if able.

Know Evil

When you set this scheme in motion, until your next turn, up to one target opponent can't attack with creatures, up to one target opponent can't cast creature spells, and up to one target opponent can't cast noncreature spells. You can't choose any player as a target more than once.

Make Yourself Useful

When you set this scheme in motion, destroy target creature an opponent controls. If a creature is destroyed this way, you gain life equal to its toughness.

The Mighty Will Fall

When you set this scheme in motion, choose an opponent with the highest life total among your opponents. That player loses 7 life.

My Forces Are Innumerable

(An ongoing scheme remains face up until it's abandoned.)
At the beginning of your end step, create a 3/3 black Horror creature token.
At the beginning of your opponents' end step, they may sacrifice two creatures. If they do, abandon this scheme.

My Laughter Echoes

(An ongoing scheme remains face up until it's abandoned.)
Whenever you set a non-ongoing scheme in motion, you may abandon this scheme. If you do, set that scheme in motion again.

No One Will Hear Your Cries

When you set this scheme in motion, each opponent chooses a creature they control, then sacrifices the rest.

Pay Tribute to Me

When you set this scheme in motion, each opponent sacrifices a creature. If you control six or more lands, each opponent sacrifices another creature.

Power Without Equal

When you set this scheme in motion, draw three cards. You have no maximum hand size until your next turn. If you control six or more lands, you may cast up to three spells from your hand without paying their mana costs.

A Reckoning Approaches

When you set this scheme in motion, look at the top six cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

There Is No Refuge

When you set this scheme in motion, it deals 3 damage to up to one target creature. Create a 3/3 black Horror creature token.

This World Belongs to Me

When you set this scheme in motion, draw two cards. You may play an additional land this turn.

What's Yours Is Now Mine

When you set this scheme in motion, gain control of target creature an opponent controls and untap it.

When Will You Learn?

When you set this scheme in motion, each opponent exiles the top card of their library. You may cast any number of spells from among cards exiled this way without paying their mana costs.

All in Good Time

When you set this scheme in motion, take an extra turn after this one. Schemes can't be set in motion that turn.

All Shall Smolder in My Wake

When you set this scheme in motion, destroy up to one target artifact, up to one target enchantment, and up to one target nonbasic land.

Behold the Power of Destruction

When you set this scheme in motion, destroy all nonland permanents target opponent controls.

Choose Your Champion

When you set this scheme in motion, target opponent chooses a player. Until your next turn, only you and the chosen player can cast spells and attack with creatures.

Dance, Pathetic Marionette

When you set this scheme in motion, each opponent reveals cards from the top of their library until they reveal a creature card. Choose one of the revealed creature cards and put it onto the battlefield under your control. Put all other cards revealed this way into their owners' graveyards.

The Dead Shall Serve

When you set this scheme in motion, for each opponent, put up to one target creature card from that player's graveyard onto the battlefield under your control. Each of those creatures attacks its owner each combat if able.

A Display of My Dark Power

When you set this scheme in motion, until your next turn, whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Embrace My Diabolical Vision

When you set this scheme in motion, each player shuffles their hand and graveyard into their library. You draw seven cards, then each other player draws four cards.

Every Hope Shall Vanish

When you set this scheme in motion, each opponent reveals their hand. Choose a nonland card from each of those hands. Those players discard those cards.

Every Last Vestige Shall Rot

When you set this scheme in motion, you may pay {X}. If you do, put each nonland permanent target player controls with mana value X or less on the bottom of its owner's library.

Evil Comes to Fruition

When you set this scheme in motion, create seven 0/1 green Plant creature tokens. If you control ten or more lands, create seven 3/3 green Elemental creature tokens instead.

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