You can't win the game and your opponents can't lose the game.
6 /
6
{3}{B}{B}
Aku Djinn
Creature - Djinn
Trample
At the beginning of your upkeep, put a +1/+1 counter on each creature each opponent controls.
5 /
6
{2}{B}{B}
All Hallow's Eve
Sorcery
Exile All Hallow's Eve with two scream counters on it.
At the beginning of your upkeep, if All Hallow's Eve is exiled with a scream counter on it, remove a scream counter from it. If there are no more scream counters on it, put it into your graveyard and each player returns all creature cards from their graveyard to the battlefield.
{1}{B}{B}
Blanket of Night
Enchantment
Each land is a Swamp in addition to its other land types.
--
Bojuka Bog
Land
Bojuka Bog enters the battlefield tapped.
When Bojuka Bog enters the battlefield, exile target player's graveyard.
{T}: Add {B}.
{3}
Burnished Hart
Artifact Creature - Elk
{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
2 /
2
--
Cabal Coffers
Land
{2}, {T}: Add {B} for each Swamp you control.
--
Cabal Stronghold
Land
{T}: Add {C}.
{3}, {T}: Add {B} for each basic Swamp you control.
{3}
Crawlspace
Artifact
No more than two creatures can attack you each combat.
{3}
Crown of Doom
Artifact
Whenever a creature attacks you or a planeswalker you control, it gets +2/+0 until end of turn.
{2}: Target player other than Crown of Doom's owner gains control of it. Activate only during your turn.
{6}{B}
Cruel Entertainment
Sorcery
Choose target player and another target player. The first player controls the second player during the second player's next turn, and the second player controls the first player during the first player's next turn.
{2}{B}
Curse of Disturbance
Enchantment - Aura Curse
Enchant player
Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same.
{B}
Darkness
Instant
Prevent all combat damage that would be dealt this turn.
--
Deserted Temple
Land
{T}: Add {C}.
{1}, {T}: Untap target land.
{3}{B}
Empty the Catacombs
Sorcery
Each player returns all creature cards from their graveyard to their hand.
{2}{B}
Endbringer's Revel
Enchantment
{4}: Return target creature card from a graveyard to its owner's hand. Any player may activate this ability but only as a sorcery.
{2}{B}{B}
Endless Whispers
Enchantment
Each creature has "When this creature dies, choose target opponent. That player puts this card from its owner's graveyard onto the battlefield under their control at the beginning of the next end step."
{3}{B}
Enslaved Horror
Creature - Horror
When Enslaved Horror enters the battlefield, each other player may return a creature card from their graveyard to the battlefield.
4 /
4
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{1}{B}
Exhume
Sorcery
Each player puts a creature card from their graveyard onto the battlefield.
{X}{B}{B}
Exsanguinate
Sorcery
Each opponent loses X life. You gain life equal to the life lost this way.
{2}
Fellwar Stone
Artifact
{T}: Add one mana of any color that a land an opponent controls could produce.
{4}
Font of Mythos
Artifact
At the beginning of each player's draw step, that player draws two additional cards.
--
Forbidden Orchard
Land
{T}: Add one mana of any color.
Whenever you tap Forbidden Orchard for mana, target opponent creates a 1/1 colorless Spirit creature token.
{6}
Gate to the Aether
Artifact
At the beginning of each player's upkeep, that player reveals the top card of their library. If it's an artifact, creature, enchantment, or land card, the player may put it onto the battlefield.
--
Geier Reach Sanitarium
Legendary Land
{T}: Add {C}.
{2}, {T}: Each player draws a card, then discards a card.
{4}
Ghirapur Orrery
Artifact
Each player may play an additional land on each of their turns.
At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.
{5}
Gilded Lotus
Artifact
{T}: Add three mana of any one color.
{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
{3}
Heartstone
Artifact
Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.
{2}
Helm of Awakening
Artifact
Spells cost {1} less to cast.
--
Homeward Path
Land
{T}: Add {C}.
{T}: Each player gains control of all creatures they own.
{3}
Horn of Greed
Artifact
Whenever a player plays a land, that player draws a card.
{6}
Horn of Plenty
Artifact
Whenever a player casts a spell, they may pay {1}. If the player does, they draw a card at the beginning of the next end step.
{2}
Howling Mine
Artifact
At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.
{B}{B}
Hunted Horror
Creature - Horror
Trample
When Hunted Horror enters the battlefield, target opponent creates two 3/3 green Centaur creature tokens with protection from black.
7 /
7
{1}{B}{B}
Hunted Nightmare
Creature - Nightmare
Menace
When Hunted Nightmare enters the battlefield, target opponent puts a deathtouch counter on a creature they control.
4 /
5
{2}{B}{B}
Ill-Gotten Gains
Sorcery
Exile Ill-Gotten Gains. Each player discards their hand, then returns up to three cards from their graveyard to their hand.
{4}{B}{B}
Infernal Genesis
Enchantment
At the beginning of each player's upkeep, that player mills a card. Then they create X 1/1 black Minion creature tokens, where X is the milled card's mana value.
{4}{B}
Infernal Offering
Sorcery
Choose an opponent. You and that player each sacrifice a creature. Each player who sacrificed a creature this way draws two cards.
Choose an opponent. Return a creature card from your graveyard to the battlefield, then that player returns a creature card from their graveyard to the battlefield.
{6}
Knowledge Pool
Artifact
Imprint -- When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library.
Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost.
{2}{B}{B}
Koskun Falls
World Enchantment
At the beginning of your upkeep, sacrifice Koskun Falls unless you tap an untapped creature you control.
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{1}{B}{B}
Maralen of the Mornsong
Legendary Creature - Elf Wizard
Players can't draw cards.
At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles.
2 /
3
{3}{B}
Marchesa's Decree
Enchantment
When Marchesa's Decree enters the battlefield, you become the monarch.
Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.
{1}{B}{B}
Master of the Feast
Enchantment Creature - Demon
Flying
At the beginning of your upkeep, each opponent draws a card.
5 /
5
--
Mikokoro, Center of the Sea
Legendary Land
{T}: Add {C}.
{2}, {T}: Each player draws a card.
--
Myriad Landscape
Land
Myriad Landscape enters the battlefield tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.
{4}
Nyx Lotus
Legendary Artifact
Nyx Lotus enters the battlefield tapped.
{T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)
{1}{B}
Oath of Ghouls
Enchantment
At the beginning of each player's upkeep, that player chooses target player whose graveyard has fewer creature cards in it than their graveyard does and is their opponent. The first player may return a creature card from their graveyard to their hand.
{6}
Omen Machine
Artifact
Players can't draw cards.
At the beginning of each player's draw step, that player exiles the top card of their library. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able.
{4}
Otherworld Atlas
Artifact
{T}: Put a charge counter on Otherworld Atlas.
{T}: Each player draws a card for each charge counter on Otherworld Atlas.
{3}
Pendant of Prosperity
Artifact
Pendant of Prosperity enters the battlefield under the control of an opponent of your choice.
{2}, {T}: Draw a card, then you may put a land card from your hand onto the battlefield. Pendant of Prosperity's owner draws a card, then that player may put a land card from their hand onto the battlefield.
{6}{B}
Price of Knowledge
Enchantment
Players have no maximum hand size.
At the beginning of each opponent's upkeep, Price of Knowledge deals damage to that player equal to the number of cards in that player's hand.
{1}
Pyxis of Pandemonium
Artifact
{T}: Each player exiles the top card of their library face down.
{7}, {T}, Sacrifice Pyxis of Pandemonium: Each player turns face up all cards they own exiled with Pyxis of Pandemonium, then puts all permanent cards among them onto the battlefield.
{5}{B}{B}
Repay in Kind
Sorcery
Each player's life total becomes the lowest life total among all players.
{1}{B}
Revive the Fallen
Sorcery
Return target creature card from a graveyard to its owner's hand. Clash with an opponent. If you win, return Revive the Fallen to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)
{3}{B}
Scandalmonger
Creature - Boar Monger
{2}: Target player discards a card. Any player may activate this ability but only as a sorcery.
3 /
3
{B}
Scheming Symmetry
Sorcery
Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.
{3}{B}{B}
Seizan, Perverter of Truth
Legendary Creature - Demon Spirit
At the beginning of each player's upkeep, that player loses 2 life and draws two cards.
6 /
5
{B}{B}
Sign in Blood
Sorcery
Target player draws two cards and loses 2 life.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{3}
Spectral Searchlight
Artifact
{T}: Choose a player. That player adds one mana of any color they choose.
{0}
Spellbook
Artifact
You have no maximum hand size.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{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}
{2}
Sword of the Animist
Legendary Artifact - Equipment
Equipped creature gets +1/+1.
Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Equip {2}
{4}
Teferi's Puzzle Box
Artifact
At the beginning of each player's draw step, that player puts the cards in their hand on the bottom of their library in any order, then draws that many cards.
{3}
Temple Bell
Artifact
{T}: Each player draws a card.
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
{4}{B}
Tempt with Immortality
Sorcery
Tempting offer -- Return a creature card from your graveyard to the battlefield. Each opponent may return a creature card from their graveyard to the battlefield. For each opponent who does, return a creature card from your graveyard to the battlefield.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{2}
Thought Vessel
Artifact
You have no maximum hand size.
{T}: Add {C}.
--
Throne of the High City
Land
{T}: Add {C}.
{4}, {T}, Sacrifice Throne of the High City: You become the monarch.
{1}{B}
Tinybones, Trinket Thief
Legendary Creature - Skeleton Rogue
At the beginning of each end step, if an opponent discarded a card this turn, you draw a card and you lose 1 life.
{4}{B}{B}: Each opponent with no cards in hand loses 10 life.
1 /
2
{3}{B}
Triskaidekaphobia
Enchantment
At the beginning of your upkeep, choose one --
• Each player with exactly 13 life loses the game, then each player gains 1 life.
• Each player with exactly 13 life loses the game, then each player loses 1 life.
{4}{B}{B}
Twilight's Call
Sorcery
You may cast Twilight's Call as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.)
Each player returns all creature cards from their graveyard to the battlefield.
--
Urborg, Tomb of Yawgmoth
Legendary Land
Each land is a Swamp in addition to its other land types.
{5}
Venser's Journal
Artifact
You have no maximum hand size.
At the beginning of your upkeep, you gain 1 life for each card in your hand.
{3}
Victory Chimes
Artifact
Untap Victory Chimes during each other player's untap step.
{T}: A player of your choice adds {C}.
{2}{B}
Virtus's Maneuver
Sorcery
For each player, choose friend or foe. Each friend returns a creature card from their graveyard to their hand. Each foe sacrifices a creature they control.
{2}{B}
Vow of Malice
Enchantment - Aura
Enchant creature
Enchanted creature gets +2/+2, has intimidate, and can't attack you or planeswalkers you control. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)
{1}{B}
Wishclaw Talisman
Artifact
Wishclaw Talisman enters the battlefield with three wish counters on it.
{1}, {T}, Remove a wish counter from Wishclaw Talisman: Search your library for a card, put it into your hand, then shuffle. An opponent gains control of Wishclaw Talisman. Activate only during your turn.