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

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

As this artifact enters, choose a color. Creatures of the chosen color get +1/+1. Whenever a basic land is tapped for mana of the chosen color, its controller adds an additional one mana of that color.

Whenever an opponent discards a card, you may draw a card.

As this artifact enters, pay any amount of life. {4}, {T}: Create an X/X black Phyrexian Minion creature token, where X is the life paid as this artifact entered.

As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

Flying If damage would be dealt to you, prevent that damage and mill twice that many cards.

If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast. Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) {T}: Destroy target creature. It can't be regenerated.

Changeling (This card is every creature type.) As this creature enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

When this creature enters, exile it unless you discard a creature card. When this creature dies, exile it and return target creature card from your graveyard to the battlefield.

Flying Echo {2}{B} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When this creature enters, destroy target nonartifact, nonblack creature.

{T}: Put a bounty counter on target nonblack creature. {T}: Destroy target creature with a bounty counter on it.

Threshold — {1}{B}, {T}, Exile two cards from your graveyard: Target player discards a card. Activate only as a sorcery and only if seven or more cards are in your graveyard.

{B}, {T}: Target creature gets -1/-1 until end of turn. Threshold — {3}{B}{B}, {T}: Target creature gets -2/-2 until end of turn. Activate only if seven or more cards are in your graveyard.

Sacrifice this creature: Target creature gets -2/-0 until end of turn.

{2}{B}, {T}: Target player discards a card. Activate only as a sorcery.

All Nightmares get +1/+1. {B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types. When Chainer leaves the battlefield, exile all Nightmares.

Changeling (This card is every creature type.) This creature can't block and can't be blocked.

{2}{B}: Regenerate this creature. Whenever this creature becomes blocked, defending player discards a card at random.

Shadow (This creature can block or be blocked by only creatures with shadow.) {1}{B}, {T}: Destroy target creature with shadow.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.) Whenever this creature attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.

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

{B}, Discard a card: Regenerate this creature. Threshold — As long as seven or more cards are in your graveyard, this creature gets +2/+2 and can't block.

Kicker {3}{B} (You may pay an additional {3}{B} as you cast this spell.) If this creature was kicked, it enters with two +1/+1 counters on it and with fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Flying Threshold — As long as seven or more cards are in your graveyard, this creature has "When this creature enters, nonblack creatures get -2/-2 until end of turn."

Changeling (This card is every creature type.) When this creature enters, you may return target creature card from your graveyard to your hand.

({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.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Each other creature you control of the chosen type enters with an additional +1/+1 counter on it.

Protection from black At the beginning of your upkeep, this creature deals 5 damage to you unless you sacrifice a creature other than this creature. If this creature deals damage to you this way, tap it. {T}: Destroy target creature or land.

Discard a card, Sacrifice this creature: Add {B}{B}{B}.

{T}, Exile any number of cards from your graveyard: Target creature gets -X/-X until end of turn, where X is the number of cards exiled this way.

When Phage enters, if you didn't cast it from your hand, you lose the game. Whenever Phage deals combat damage to a creature, destroy that creature. It can't be regenerated. Whenever Phage deals combat damage to a player, that player loses the game.

{1}, Sacrifice a creature: Put a +1/+1 counter on this creature.

Flying Whenever this creature becomes blocked by a white creature, destroy that creature. It can't be regenerated.

When this creature enters, add {B}{B}{B}.

{B}{B}{B}, {T}: Target opponent reveals their hand and discards a creature card at random. Activate only during your turn.

Sacrifice a creature: Target player discards two cards. Activate only as a sorcery.

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.

When this creature enters, target opponent gains control of it. At the beginning of your upkeep, this creature deals 2 damage to you.

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.

Threshold — As long as seven or more cards are in your graveyard, this creature gets +2/+2 and has "When this creature dies, you lose 4 life."

Changeling (This card is every creature type.)

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

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.

Creature spells you cast cost {2} less to cast. Creatures you control get -1/-1.

At the beginning of each player's upkeep, that player mills a card. Then they create X 1/1 black Minion creature tokens, where X is the milled card's mana value.

At the beginning of your upkeep, put two eon counters on this enchantment, then mill cards equal to the number of eon counters on it. If you would draw a card while your library has no cards in it, instead return a creature card from your graveyard to the battlefield. If you can't, you lose the game.

Target creature gets -1/-1 until end of turn for each Swamp you control.

Destroy target nonartifact creature.

Add {B} for each creature card in your graveyard.

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

This land enters tapped. {T}: Add {B}. {2}, {T}: Add {B} for each black creature card in your graveyard.

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

This land enters tapped. When this land enters, you may put target creature card from your graveyard on top of your library. {T}: Add {B}.

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

Each player mills ten cards. For each player, choose a creature or planeswalker card in that player's graveyard. Put those cards onto the battlefield under your control. Then each creature you control becomes a Phyrexian in addition to its other types.

Return target creature card from your graveyard to the battlefield. Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.

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

Target player draws two cards and loses 2 life.

Return target creature card with mana value 3 or less from your graveyard to the battlefield. Cycling {2} ({2}, Discard this card: Draw a card.)