Have

Tortured Existence

{B}, Discard a creature card: Return target creature card from your graveyard to your hand.

Dredge

Sacrifice a creature or land.
Draw a card.

Commander Greven il-Vec

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
When Commander Greven il-Vec enters, sacrifice a creature.

Syphon Mind

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

Cabal Ritual

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

Dauthi Trapper

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

Filth

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
As long as this card is in your graveyard and you control a Swamp, creatures you control have swampwalk.

Phyrexian Rager

When this creature enters, you draw a card and you lose 1 life.

Millikin

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

High Market

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

Urza's Bauble

{T}, Sacrifice this artifact: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Mana Prism

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Withering Boon

As an additional cost to cast this spell, pay 3 life.
Counter target creature spell.

Phyrexian Arena

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

Cremate

Exile target card from a graveyard.
Draw a card.

Phyrexian Gargantua

When this creature enters, you draw two cards and you lose 2 life.

Mind Stone

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

Chromatic Sphere

{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Manakin

Star Compass

This artifact enters tapped.
{T}: Add one mana of any color that a basic land you control could produce.

Abyssal Specter

Flying
Whenever this creature deals damage to a player, that player discards a card.

Catacomb Dragon

Flying
Whenever this creature becomes blocked by a nonartifact, non-Dragon creature, that creature gets -X/-0 until end of turn, where X is half the creature's power, rounded down.

Deserted Temple

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

Dark Ritual

Toxic Stench

Target nonblack creature gets -1/-1 until end of turn.
Threshold — If there are seven or more cards in your graveyard, instead destroy that creature. It can't be regenerated.

Gloomdrifter

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

Expunge

Destroy target nonartifact, nonblack creature. It can't be regenerated.
Cycling {2} ({2}, Discard this card: Draw a card.)

Skull of Ramos

{T}: Add {B}.
Sacrifice this artifact: Add {B}.

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Infernal Tribute

{2}, Sacrifice a nontoken permanent: Draw a card.

Chainer, Dementia Master

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.

Entropic Specter

Flying
As this creature enters, choose an opponent.
Entropic Specter's power and toughness are each equal to the number of cards in the chosen player's hand.
Whenever this creature deals damage to a player, that player discards a card.

Cabal Coffers

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

Screeching Buzzard

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

Decree of Pain

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way.
Cycling {3}{B}{B} ({3}{B}{B}, Discard this card: Draw a card.)
When you cycle this card, all creatures get -2/-2 until end of turn.

Worry Beads

At the beginning of each player's upkeep, that player mills a card.

Animate Dead

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.

Abyssal Horror

Flying
When this creature enters, target player discards two cards.

Mortivore

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Delraich

You may sacrifice three black creatures rather than pay this spell's mana cost.
Trample

Sol Grail

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

Earsplitting Rats

When this creature enters, each player discards a card.
Discard a card: Regenerate this creature.

Charcoal Diamond

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

Petrified Field

{T}: Add {C}.
{T}, Sacrifice this land: Return target land card from your graveyard to your hand.

Hollow Specter

Flying
Whenever this creature deals combat damage to a player, you may pay {X}. If you do, that player reveals X cards from their hand and you choose one of them. That player discards that card.

Revenant

Flying
Revenant's power and toughness are each equal to the number of creature cards in your graveyard.

Necromancy

You may cast this spell as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step.
When this enchantment enters, if it's on the battlefield, it becomes an Aura with "enchant creature put onto the battlefield with Necromancy." Put target creature card from a graveyard onto the battlefield under your control and attach this enchantment to it. When this enchantment leaves the battlefield, that creature's controller sacrifices it.

Anvil of Bogardan

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.

Silent Specter

Flying
Whenever this creature deals combat damage to a player, that player discards two cards.
Morph {3}{B}{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.)

Bog Witch

Swamp

Temple of the False God

{T}: Add {C}{C}. Activate only if you control five or more lands.

Snuff Out

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.

Polluted Mire

This land enters tapped.
{T}: Add {B}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Everglades

This land enters tapped.
When this land enters, sacrifice it unless you return an untapped Swamp you control to its owner's hand.
{T}: Add {C}{B}.

Morgue Thrull

Sacrifice this creature: Mill three cards.

Fellwar Stone

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

Teeka's Dragon

Flying; trample; rampage 4 (Whenever this creature becomes blocked, it gets +4/+4 until end of turn for each creature blocking it beyond the first.)

Putrid Imp

Discard a card: This creature gains flying until end of turn.
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and can't block.

Mind Maggots

When this creature enters, discard any number of creature cards. For each card discarded this way, put two +1/+1 counters on this creature.

Baron Sengir

Flying
Whenever a creature dealt damage by Baron Sengir this turn dies, put a +2/+2 counter on Baron Sengir.
{T}: Regenerate another target Vampire.

Vendetta

Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.

Memory Jar

{T}, Sacrifice this artifact: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

Cackling Fiend

When this creature enters, each opponent discards a card.

Shallow Grave

Return the top creature card of your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.

Soldevi Adnate

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

Lodestone Bauble

{1}, {T}, Sacrifice this artifact: Put up to four target basic land cards from a player's graveyard on top of their library in any order. That player draws a card at the beginning of the next turn's upkeep.

Skulltap

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

Bone Shredder

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.