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.

Whenever this creature or another creature dies, target player loses 1 life and you gain 1 life.

When Phyrexian Devourer's power is 7 or greater, sacrifice it. Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card's mana value.

This creature enters with three +1/+1 counters on it. Remove a +1/+1 counter from this creature: It deals 1 damage to any target.

This creature enters with X +1/+1 counters on it. {4}: Put a +1/+1 counter on this creature. Remove a +1/+1 counter from this creature: It deals 1 damage to any target.

Players have no maximum hand size. At the beginning of each player's draw step, that player draws an additional card, then discards a card.

When this creature dies, each player discards their hand.

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.)

Morph {B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) Whenever another nontoken creature you control dies, draw a card.

Whenever a creature you control dies, draw a card. +1: Create a 2/2 black Zombie creature token. −4: Each player sacrifices two creatures of their choice. −9: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest.

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.

You draw two cards and you lose 2 life.

Target player draws two cards and loses 2 life.

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Search target player's library for a card and exile it. Then that player shuffles. Gravestorm (When you cast this spell, copy it for each permanent put into a graveyard this turn. You may choose new targets for the copies.)

Destroy all creatures. They can't be regenerated.

All nonsnow creatures get -X/-X until end of turn, where X is the number of snow permanents you control.

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

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

Whenever a creature you control dies, each other player sacrifices a creature of their choice.

Destroy target creature or planeswalker.

Change the target of target spell with a single target. You lose life equal to that spell's mana value.

Each player sacrifices a creature of their choice.

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their choice.) Whenever an opponent sacrifices a nontoken permanent, put that card onto the battlefield under your control.

Lifelink If a nontoken creature an opponent controls would die, instead exile that card and create a 2/2 black Zombie creature token. {2}{B}, Sacrifice another Vampire or Zombie: Put two +1/+1 counters on Kalitas.

+4: Target player exiles a card from their hand. −3: Exile target permanent. −14: Restart the game, leaving in exile all non-Aura permanent cards exiled with Karn. Then put those cards onto the battlefield under your control.

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.

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

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

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

This artifact enters tapped. {1}, {T}: Destroy all artifacts, creatures, and enchantments.

Menace When this creature enters, you may destroy another target creature. If a creature is destroyed this way, you gain life equal to its toughness.

{4}, {T}: Put a fate counter on target permanent. {5}, {T}, Sacrifice this artifact: Destroy each nonland permanent without a fate counter on it, then remove all fate counters from all permanents.

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

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.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Until end of turn, creatures target player controls lose all abilities and have base power and toughness 0/2.

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

+2: Ugin deals 3 damage to any target. −X: Exile each permanent with mana value X or less that's one or more colors. −10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

{T}: Add {C}{C}. This land deals 2 damage to you.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

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

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

{T}: Add {C}. {3}, {T}: Add {B} for each basic Swamp you control.

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

{T}: Add {C}. {1}, {T}: Untap target land.

{T}: Add {C}. {T}, Sacrifice a creature: You gain 1 life.

If this land would enter, sacrifice a Swamp instead. If you do, put this land onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {B}. {T}, Sacrifice a Swamp: Add {B}{B}{B}{B}.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

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.

{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.)

{T}: Add {C}. {T}, Sacrifice a creature: Add {B}{B}.

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield, then shuffle.

({T}: Add {B}.)

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land.

{T}: Add {C}. {2}, {T}: This land becomes a copy of target land, except it has this ability.

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

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

As this artifact enters, 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.

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.) Whenever you tap a Swamp for mana, add an additional {B}.

Imprint — When this artifact enters, 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.

When this creature dies, put target creature card from your graveyard on top of your library. Dredge 4 (If you would draw a card, you may mill four cards instead. If you do, return this card from your graveyard to your hand.)

Whenever a permanent becomes untapped, that permanent's controller mills a card.

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

This artifact doesn't untap during your untap step. {T}: Add {C}{C}{C}. {3}: Untap this artifact.

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

Imprint — When this artifact enters, you may exile a nonartifact, nonland card from your hand. {T}: Add one mana of any of the exiled card's colors.

This artifact enters tapped. As this artifact enters, choose a color. {T}: Add one mana of the chosen color.

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

This artifact doesn't untap during your untap step. {T}: Add {C}{C}{C}. {4}: Untap this artifact.

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

({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.

{T}, Sacrifice this artifact: Add one mana of any color.

At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you. {T}: Add {C}{C}.

This artifact doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact. At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

If this artifact would enter, you may discard a land card instead. If you do, put this artifact onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add one mana of any color.

Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.

Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Flying Discard a card: Add {B}.

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

{T}, Sacrifice a black or artifact creature: Add an amount of {B} equal to the sacrificed creature's mana value.

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.

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.

This creature can't block. This creature has haste as long as an opponent has 10 or less life. Landfall — Whenever a land you control enters, you may return this card from your graveyard to the battlefield.

You may play lands from your graveyard.