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.)

Rat offering (You may cast this spell any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat. Mana cost includes color.) Whenever a permanent is put into an opponent's graveyard, that player loses 1 life.

Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad deals 1 damage to each opponent. {1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)

This land enters tapped. When this land enters, exile target player's graveyard. {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.

Return up to three target creature cards of the creature type of your choice from your graveyard to your hand.

{T}, Exile this artifact: Shuffle your graveyard into your library.

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.

Myojin of Grim Betrayal enters with an indestructible counter on it if you cast it from your hand. Remove an indestructible counter from Myojin of Grim Betrayal: Put onto the battlefield under your control all creature cards in all graveyards that were put there from anywhere this turn.

Each player chooses a creature type. Each player returns all creature cards of a type chosen this way from their graveyard to the battlefield.

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.")

Flying When this creature enters, draw a card if a creature died this turn. Otherwise, each player sacrifices a creature of their choice.

When this enchantment enters, you draw four cards and you lose 4 life. At the beginning of your upkeep, if you control four or more Demons with different names, you win the game.

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

Scry 2, then draw two cards. You lose 2 life. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

At the beginning of each player's upkeep, that player loses 2 life and draws two cards.

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

Until end of turn, all creatures become black and all lands become Swamps.

Fathomless descent — When this creature enters, target creature an opponent controls gets -X/-X until end of turn, where X is the number of permanent cards in your graveyard.

Flash This spell costs {2} less to cast for each creature that died this turn. When this creature enters, destroy all other creatures that were dealt damage this turn.

If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost. Destroy all creatures that entered this turn.

Flying Whenever a creature becomes the target of a spell or ability, destroy that creature.

Kagemaro's power and toughness are each equal to the number of cards in your hand. {B}, Sacrifice Kagemaro: All creatures get -X/-X until end of turn, where X is the number of cards in your hand.

Flying When this creature enters, target creature gets -2/-2 until end of turn.

At the beginning of your upkeep, sacrifice Kuro unless you pay {B}{B}{B}{B}. Pay 1 life: Target creature gets -1/-1 until end of turn.

Wither (This deals damage to creatures in the form of -1/-1 counters.) At the beginning of your upkeep, put a -1/-1 counter on each nonblack creature.

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

Descend 4 — As long as there are four or more permanent cards in your graveyard, this creature gets +1/+1 and has lifelink.

Flying Whenever this creature deals combat damage to a player, that player loses 1 life for each artifact they control.

As an additional cost to cast this spell, discard a card or sacrifice a permanent. Fathomless descent — Souls of the Lost's power is equal to the number of permanent cards in your graveyard and its toughness is equal to that number plus 1.

When this creature enters, surveil 2. Then for each card you put on top of your library, you draw a card and you lose 3 life. Descend 8 — Whenever you draw a card, if there are eight or more permanent cards in your graveyard, target opponent loses 1 life and you gain 1 life.

{B}: Target player dealt damage by this creature this turn loses 1 life.

Flying Whenever you cast a Spirit or Arcane spell, target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Skulk (This creature can't be blocked by creatures with greater power.) When this creature enters, discard a card.

Search your library for a card, put that card into your hand, then shuffle. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, add {B}{B}{B}.

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

Undergrowth — Search your library for a black card with mana value less than or equal to the number of creature cards in your graveyard, reveal it, put it into your hand, then shuffle.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) Whenever this creature deals combat damage to a player, that player discards a card.

{4}{B}, {T}: Target player discards two cards. Activate only as a sorcery. Channel — {5}{B}{B}, Discard this card: Target player discards four cards. Activate only as a sorcery.

Flying {1}, Sacrifice a Spirit: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery. Soulshift 4 (When this creature dies, you may return target Spirit card with mana value 4 or less from your graveyard to your hand.)

Flying Whenever you cast a Spirit or Arcane spell, target player reveals their hand and discards all cards with that spell's mana value.

Whenever you cast a Spirit or Arcane spell, target opponent exiles a card from their hand.

As an additional cost to cast this spell, you may sacrifice any number of Spirits. Target player loses 2 life plus 2 life for each Spirit sacrificed this way. You gain that much life.

{B}, {T}, Discard a card: Add {B}{B}{B}.

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

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

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}.

Add {B}{B}{B}.

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

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

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