If you would pay life while your library has at least that many cards in it, exile that many cards from the top of your library instead.
+1: Look at the top two cards of your library. Exile one of them and put the other into your hand.
-2: Create two 1/1 black Nightmare creature tokens with "At the beginning of combat on your turn, if a card was put into exile this turn, put a +1/+1 counter on this creature."
-7: Target player exiles the top X cards of their library, where X is the total mana value of cards you own in exile.
L:
5
{2}{B}
Bastion of Remembrance
Enchantment
When Bastion of Remembrance enters, create a 1/1 white Human Soldier creature token.
Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.
{1}{B}
Blightbelly Rat
Creature - Phyrexian Rat
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
When Blightbelly Rat dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
2 /
2
{1}{B}
Blood Artist
Creature - Vampire
Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.
0 /
1
{1}{B}
Butcher Ghoul
Creature - Zombie
Undying (When this creature 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.)
1 /
1
{X}{B}
Confront the Past
Sorcery - Lesson
Choose one --
• Return target planeswalker card with mana value X or less from your graveyard to the battlefield.
• Remove twice X loyalty counters from target planeswalker an opponent controls.
{3}
Crawlspace
Artifact
No more than two creatures can attack you each combat.
{3}{B}
Crypt Ghast
Creature - Spirit
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}.
2 /
2
{2}{B}{B}
Damnation
Sorcery
Destroy all creatures. They can't be regenerated.
{6}{B}{B}
Decree of Pain
Sorcery
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 Decree of Pain, all creatures get -2/-2 until end of turn.
{1}{B}
Demonic Tutor
Sorcery
Search your library for a card, put that card into your hand, then shuffle.
{3}{B}{B}
Dictate of Erebos
Enchantment
Flash
Whenever a creature you control dies, each opponent sacrifices a creature.
{3}
Ensnaring Bridge
Artifact
Creatures with power greater than the number of cards in your hand can't attack.
{B}{B}{B}
Geralf's Messenger
Creature - Zombie
Geralf's Messenger enters the battlefield tapped.
When Geralf's Messenger enters the battlefield, target opponent loses 2 life.
Undying (When this creature 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.)
3 /
2
{1}{B}{B}{B}
Grave Pact
Enchantment
Whenever a creature you control dies, each other player sacrifices a creature.
{B}
Gravecrawler
Creature - Zombie
Gravecrawler can't block.
You may cast Gravecrawler from your graveyard as long as you control a Zombie.
2 /
1
{3}{B}{B}
Gray Merchant of Asphodel
Creature - Zombie
When Gray Merchant of Asphodel enters the battlefield, 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.)
2 /
4
{1}{B}{B}
Grim Tutor
Sorcery
Search your library for a card, put that card into your hand, then shuffle. You lose 3 life.
{4}{B/P}{B/P}{B/P}
K'rrik, Son of Yawgmoth
Legendary Creature - Phyrexian Horror Minion
({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, Son of Yawgmoth.
2 /
2
{4}
Karn, the Great Creator
Legendary Planeswalker - Karn
Activated abilities of artifacts your opponents control can't be activated.
+1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value.
-2: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand.
L:
5
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{3}{B}{B}
Liliana Vess
Legendary Planeswalker - Liliana
+1: Target player discards a card.
-2: Search your library for a card, then shuffle and put that card on top.
-8: Put all creature cards from all graveyards onto the battlefield under your control.
L:
5
{2}{B}{B}
Liliana of the Dark Realms
Legendary Planeswalker - Liliana
+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.
-3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.
-6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}.'"
L:
3
{1}{B}{B}
Liliana of the Veil
Legendary Planeswalker - Liliana
+1: Each player discards a card.
-2: Target player sacrifices a creature.
-6: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of their choice.
L:
3
{B}{B}
Liliana's Talent
Enchantment - Aura
Enchant planeswalker
Enchanted planeswalker has "[-8]: Put all creature cards from all graveyards onto the battlefield under your control."
Whenever a creature deals damage to enchanted planeswalker, destroy that creature.
{1}{B}
Liliana's Triumph
Instant
Each opponent sacrifices a creature. If you control a Liliana planeswalker, each opponent also discards a card.
{3}{B}{B}
Liliana, Death's Majesty
Legendary Planeswalker - Liliana
+1: Create a 2/2 black Zombie creature token. Mill two cards.
-3: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.
-7: Destroy all non-Zombie creatures.
L:
5
{4}{B}{B}
Liliana, Dreadhorde General
Legendary Planeswalker - Liliana
Whenever a creature you control dies, draw a card.
+1: Create a 2/2 black Zombie creature token.
-4: Each player sacrifices two creatures.
-9: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest.
L:
6
{1}{B}{B}
Liliana, Heretical Healer
Legendary Creature - Human Cleric
Lifelink
Whenever another nontoken creature you control dies, exile Liliana, Heretical Healer, then return her to the battlefield transformed under her owner's control. If you do, create a 2/2 black Zombie creature token.
2 /
3
--
Liliana, Defiant Necromancer
Legendary Planeswalker - Liliana
+2: Each player discards a card.
-X: Return target nonlegendary creature card with mana value X from your graveyard to the battlefield.
-8: You get an emblem with "Whenever a creature dies, return it to the battlefield under your control at the beginning of the next end step."
2 /
3
{2}{B}{B}
Liliana, Waker of the Dead
Legendary Planeswalker - Liliana
+1: Each player discards a card. Each opponent who can't loses 3 life.
-3: Target creature gets -X/-X until end of turn, where X is the number of cards in your graveyard.
-7: You get an emblem with "At the beginning of combat on your turn, put target creature card from a graveyard onto the battlefield under your control. It gains haste."
L:
4
{1}{B}{B}
Liliana, the Last Hope
Legendary Planeswalker - Liliana
+1: Up to one target creature gets -2/-1 until your next turn.
-2: Mill two cards, then you may return a creature card from your graveyard to your hand.
-7: You get an emblem with "At the beginning of your end step, create X 2/2 black Zombie creature tokens, where X is two plus the number of Zombies you control."
L:
3
{3}{B}{B}
Liliana, the Necromancer
Legendary Planeswalker - Liliana
+1: Target player loses 2 life.
-1: Return target creature card from your graveyard to your hand.
-7: Destroy up to two target creatures. Put up to two creature cards from graveyards onto the battlefield under your control.
L:
4
{3}{B}{B}
Lolth, Spider Queen
Legendary Planeswalker - Lolth
Whenever a creature you control dies, put a loyalty counter on Lolth, Spider Queen.
0: You draw a card and you lose 1 life.
-3: Create two 2/1 black Spider creature tokens with menace and reach.
-8: You get an emblem with "Whenever an opponent is dealt combat damage by one or more creatures you control, if that player lost less than 8 life this turn, they lose life equal to the difference."
L:
4
{3}
Mithril Coat
Legendary Artifact - Equipment
Flash
Indestructible
When Mithril Coat enters the battlefield, attach it to target legendary creature you control.
Equipped creature has indestructible.
Equip {3}
{B}{B}{B}
Necropotence
Enchantment
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.
{1}{B}{B}
Necroskitter
Creature - Elemental
Wither (This deals damage to creatures in the form of -1/-1 counters.)
Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.
1 /
4
{2}{B}
Oath of Liliana
Legendary Enchantment
When Oath of Liliana enters the battlefield, each opponent sacrifices a creature.
At the beginning of each end step, if a planeswalker entered the battlefield under your control this turn, create a 2/2 black Zombie creature token.
{3}{B}{B}
Ob Nixilis Reignited
Legendary Planeswalker - Nixilis
+1: You draw a card and you lose 1 life.
-3: Destroy target creature.
-8: Target opponent gets an emblem with "Whenever a player draws a card, you lose 2 life."
L:
5
{3}{B}{B}
Ob Nixilis of the Black Oath
Legendary Planeswalker - Nixilis
+2: Each opponent loses 1 life. You gain life equal to the life lost this way.
-2: Create a 5/5 black Demon creature token with flying. You lose 2 life.
-8: You get an emblem with "{1}{B}, Sacrifice a creature: You gain X life and draw X cards, where X is the sacrificed creature's power."
Ob Nixilis of the Black Oath can be your commander.
L:
3
{2}{B}
Ophiomancer
Creature - Human Shaman
At the beginning of each upkeep, if you control no Snakes, create a 1/1 black Snake creature token with deathtouch.
2 /
2
{B}
Phyrexian Reclamation
Enchantment
{1}{B}, Pay 2 life: Return target creature card from your graveyard to your hand.
{4}{B}{B}
Professor Onyx
Legendary Planeswalker - Liliana
Magecraft -- Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life.
+1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
-3: Each opponent sacrifices a creature with the greatest power among creatures that player controls.
-8: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.
L:
5
{3}
Rings of Brighthearth
Artifact
Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.
{2}{B}{B}
Settle the Score
Sorcery
Exile target creature. Put two loyalty counters on a planeswalker you control.
{4}
Silent Arbiter
Artifact Creature - Construct
No more than one creature can attack each combat.
No more than one creature can block each combat.
1 /
5
{4}
Solemn Simulacrum
Artifact Creature - Golem
When Solemn Simulacrum enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
When Solemn Simulacrum dies, you may draw a card.
2 /
2
{3}{B}{B}{B}
Sorin Markov
Legendary Planeswalker - Sorin
+2: Sorin Markov deals 2 damage to any target and you gain 2 life.
-3: Target opponent's life total becomes 10.
-7: You control target player during that player's next turn.
L:
4
{2}{B}{B}
Sorin the Mirthless
Legendary Planeswalker - Sorin
+1: Look at the top card of your library. You may reveal that card and put it into your hand. If you do, you lose life equal to its mana value.
-2: Create a 2/3 black Vampire creature token with flying and lifelink.
-7: Sorin the Mirthless deals 13 damage to any target. You gain 13 life.
L:
4
{2}
Swiftfoot Boots
Artifact - Equipment
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{4}{B}
Tevesh Szat, Doom of Fools
Legendary Planeswalker - Szat
+2: Create two 0/1 black Thrull creature tokens.
+1: You may sacrifice another creature or planeswalker. If you do, draw two cards, then draw another card if the sacrificed permanent was a commander.
-10: Gain control of all commanders. Put all commanders from the command zone onto the battlefield under your control.
Tevesh Szat, Doom of Fools can be your commander.
Partner
L:
4
{4}
The Chain Veil
Legendary Artifact
At the beginning of your end step, if you didn't activate a loyalty ability of a planeswalker this turn, you lose 2 life.
{4}, {T}: For each planeswalker you control, you may activate one of its loyalty abilities once this turn as though none of its loyalty abilities have been activated this turn.
{2}{B}
Toxic Deluge
Sorcery
As an additional cost to cast this spell, pay X life.
All creatures get -X/-X until end of turn.
{B}
Vampiric Tutor
Instant
Search your library for a card, then shuffle and put that card on top. You lose 2 life.
{4}{B}{B/P}
Vraska, Betrayal's Sting
Legendary Planeswalker - Vraska
Compleated ({B/P} can be paid with {B} or 2 life. If life was paid, this planeswalker enters with two fewer loyalty counters.)
0: You draw a card and you lose 1 life. Proliferate.
-2: Target creature becomes a Treasure artifact with "{T}, Sacrifice this artifact: Add one mana of any color" and loses all other card types and abilities.
-9: If target player has fewer than nine poison counters, they get a number of poison counters equal to the difference.
L:
6
{4}{B}{B}
Vraska, Scheming Gorgon
Legendary Planeswalker - Vraska
+2: Creatures you control get +1/+0 until end of turn.
-3: Destroy target creature.
-10: Until end of turn, creatures you control gain deathtouch and "Whenever this creature deals damage to an opponent, that player loses the game."
L:
5
{2}{B}{B}
Yawgmoth, Thran Physician
Legendary Creature - Human Cleric
Protection from Humans
Pay 1 life, Sacrifice another creature: Put a -1/-1 counter on up to one target creature and draw a card.
{B}{B}, Discard a card: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
2 /
4
{1}{B}
Zulaport Cutthroat
Creature - Human Rogue Ally
Whenever Zulaport Cutthroat or another creature you control dies, each opponent loses 1 life and you gain 1 life.