As an additional cost to cast this spell, sacrifice a creature. Add an amount of {B} equal to the sacrificed creature's mana value.

Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.

Flying When this creature enters, you may search your library for exactly two cards not named Burning-Rune Demon that have different names. If you do, reveal those cards. An opponent chooses one of them. Put the chosen card into your hand and the other into your graveyard, then shuffle.

Search your library for a Demon card, reveal it, put it into your hand, then shuffle. Delirium — If there are four or more card types among cards in your graveyard, instead search your library for any card, put it into your hand, then shuffle.

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

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.

Destroy all creatures. They can't be regenerated.

Destroy all nonblack creatures. Hellfire deals X plus 3 damage to you, where X is the number of creatures that died this way.

Consuming Corruption deals X damage to target creature or planeswalker and you gain X life, where X is the number of Swamps you control.

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Whenever a player casts a black spell, you may gain 1 life.

Whenever an opponent loses life, you gain that much life.

Each opponent loses X life. You gain life equal to the life lost this way.

As this artifact enters, choose a color. Whenever a player casts a spell of the chosen color, you may gain 1 life. {T}: Add one mana of the chosen color.

Destroy target nonblack creature. It can't be regenerated. You gain life equal to its toughness.

Whenever you cast a black spell or a Swamp you control enters, you gain 1 life.

At the beginning of your upkeep, each opponent loses 1 life. You gain life equal to the life lost this way.

{T}: Exile target creature card from a graveyard that was put there this turn. Create a token that's a copy of it, except it's a Nightmare in addition to its other types. Then exile all other Nightmare tokens you control.

As this land enters, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

If a player would draw a card except the first one they draw in each of their draw steps, that player discards a card instead. If the player discards a card this way, they draw a card. If the player doesn't discard a card this way, they mill a card.

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.)

When this creature enters, mill three cards. (Put the top three cards of your library into your graveyard.) Whenever a creature dies or a creature card is put into a graveyard from a library, each opponent loses 1 life.

Exile target creature or planeswalker. You gain life equal to the number of counters on it.

{T}, Sacrifice a creature: Return target creature card from your graveyard to the battlefield. Activate only during your upkeep.

Until end of turn, permanents your opponents control gain "When this permanent deals damage to the player who cast Hellish Rebuke, sacrifice this permanent. You lose 2 life."

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

Destroy target creature. You lose 2 life.

Flying At the beginning of your upkeep, target player draws a card and loses 1 life.

Target player draws X cards and loses X life.

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

Flying, trample When Demonlord Belzenlok enters, exile cards from the top of your library until you exile a nonland card, then put that card into your hand. If the card's mana value is 4 or greater, repeat this process. Demonlord Belzenlok deals 1 damage to you for each card put into your hand this way.

At the beginning of each player's draw step, that player draws two additional cards.

{B}, Pay 2 life: Draw a card.

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

Draw four cards. You lose half your life, rounded up.

Flying, trample Skip your draw step. Whenever you play a land or cast a spell, you draw a card and you lose 1 life.

{T}: Put a charge counter on this artifact. {T}: Each player draws a card for each charge counter on this artifact.

Target player draws two cards and loses 2 life.

You draw two cards and you lose 2 life.

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.

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

Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

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

Add {B}{B}{B}.

({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}: Add {C}. You gain 1 life.

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

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

Search your library and graveyard for five cards and exile the rest. Put the chosen cards on top of your library in any order. You lose half your life, rounded up.

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.

Flying Whenever this creature deals combat damage to a player, sacrifice all other permanents you control and discard your hand. Exile the top six cards of your library. You may cast any number of spells from among cards exiled this way without paying their mana costs.

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.

Join forces — Starting with you, each player may pay any amount of mana. Each player mills X cards, where X is the total amount of mana paid this way.

Flying, trample You can't win the game and your opponents can't lose the game.

Flying At the beginning of your upkeep, each opponent draws a card.