As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

Add {B}{B}{B}.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

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

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Destroy target nonartifact creature.

Target creature gets -4/-4 until end of turn.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards. If the sacrificed creature was legendary, draw three cards instead.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

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

Target creature gains undying until end of turn. (When it dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Destroy target non-Vampire, non-Werewolf, non-Zombie creature.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

{T}: Add one mana of any color. {4}, {T}: Each player who controls a permanent named Bonder's Ornament draws a card.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) This artifact enters with a charge counter on it for each time it was kicked. {T}: Add {C} for each charge counter on this artifact.

{1}{B}, {T}, Sacrifice this artifact: Destroy target nonblack creature.

{T}: Add {B}. {1}{B}{B}, {T}, Sacrifice this artifact: You draw two cards and you lose 2 life.

{T}: Add one mana of any color. {4}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, you may put it on the bottom of your library.

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

{T}: Target player exiles a card from their graveyard. {1}, Exile this artifact: Exile all graveyards. Draw a card.

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

({T}: Add {B}.)

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

Flying 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.)

When this creature enters, each opponent discards a card.

This creature can't block. Sacrifice a creature: Put a +1/+1 counter on this creature.

Animate Chains — When this creature enters, each player sacrifices a nontoken creature of their choice.

This creature enters tapped. {2}{B}: Return this card from your graveyard to your hand.

{X}: This creature deals X damage to each creature and each player. Spend only black mana on X.

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

When this creature enters, each opponent discards a card.

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

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

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.)

When this creature enters, scry 1. {2}{B}: Return this card from your graveyard to the battlefield tapped. Activate only if you control a legendary creature.

Flying When this creature enters, each opponent discards a card.

Undergrowth — When this creature enters, it deals 1 damage to target opponent for each creature card in your graveyard.

When this creature enters, each opponent discards a card.

{2}{B}: Return this card from your graveyard to the battlefield tapped.

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

This creature can't be blocked except by three or more creatures. Swampcycling {1} ({1}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Menace (This creature can't be blocked except by two or more creatures.) When this creature enters, you take the initiative.

When this creature enters, each opponent discards a card.

Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}.

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

Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

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.)

All creatures get -2/-2 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Evincar's Justice deals 2 damage to each creature and each player.

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

Roll a d20. 1—9 | Choose an opponent. That player sacrifices a creature of their choice. 10—19 | Each opponent sacrifices a creature of their choice. 20 | Each opponent sacrifices a creature with the greatest power among creatures that player controls.

You draw two cards and you lose 2 life.

Spend only black and/or red mana on X. Soul Burn deals X damage to any target. You gain life equal to the damage dealt, but not more than the amount of {B} spent on X, the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Each other player discards a card. You draw a card for each card discarded this way.

Enchant creature or planeswalker you control When enchanted permanent dies or is put into exile, return that card to the battlefield under your control.

When this enchantment enters, target creature phases out until this enchantment leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

At the beginning of the end step, if no creatures are on the battlefield, sacrifice this enchantment. {B}: This enchantment deals 1 damage to each creature and each player.