Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.
--
Blood Crypt
Land - Swamp Mountain
({T}: Add {B} or {R}.)
As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{2}{B}
Blowfly Infestation
Enchantment
Whenever a creature dies, if it had a -1/-1 counter on it, put a -1/-1 counter on target creature.
{2}{B}
Blowfly Infestation
Enchantment
Whenever a creature dies, if it had a -1/-1 counter on it, put a -1/-1 counter on target creature.
{4}{B}{B}
Carnifex Demon
Creature - Phyrexian Demon
Flying
Carnifex Demon enters the battlefield with two -1/-1 counters on it.
{B}, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature.
6 /
6
{1}{G}
Channeler Initiate
Creature - Human Druid
When Channeler Initiate enters the battlefield, put three -1/-1 counters on target creature you control.
{T}, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color.
3 /
4
{1}{G}
Channeler Initiate
Creature - Human Druid
When Channeler Initiate enters the battlefield, put three -1/-1 counters on target creature you control.
{T}, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color.
3 /
4
{1}{G}
Channeler Initiate
Creature - Human Druid
When Channeler Initiate enters the battlefield, put three -1/-1 counters on target creature you control.
{T}, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color.
3 /
4
{2}{B}
Corrosive Mentor
Creature - Elemental Rogue
Black creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)
1 /
3
{B/G}{B/G}{B/G}{B/G}{B/G}
Deity of Scars
Creature - Spirit Avatar
Trample
Deity of Scars enters the battlefield with two -1/-1 counters on it.
{B/G}, Remove a -1/-1 counter from Deity of Scars: Regenerate Deity of Scars.
7 /
7
--
Dragonskull Summit
Land
Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{B}
Fume Spitter
Creature - Phyrexian Horror
Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.
1 /
1
{B}
Fume Spitter
Creature - Phyrexian Horror
Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.
1 /
1
{B}
Fume Spitter
Creature - Phyrexian Horror
Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.
1 /
1
{B}
Fume Spitter
Creature - Phyrexian Horror
Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.
1 /
1
{B}{G}
Hapatra, Vizier of Poisons
Legendary Creature - Human Cleric
Whenever Hapatra, Vizier of Poisons deals combat damage to a player, you may put a -1/-1 counter on target creature.
Whenever you put one or more -1/-1 counters on a creature, create a 1/1 green Snake creature token with deathtouch.
2 /
2
--
Ifnir Deadlands
Land - Desert
{T}: Add {C}.
{T}, Pay 1 life: Add {B}.
{2}{B}{B}, {T}, Sacrifice a Desert: Put two -1/-1 counters on target creature an opponent controls. Activate only as a sorcery.
--
Inkmoth Nexus
Land
{T}: Add {C}.
{1}: Inkmoth Nexus becomes a 1/1 Phyrexian Blinkmoth artifact creature with flying and infect until end of turn. It's still a land. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
--
Karn's Bastion
Land
{T}: Add {C}.
{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
{3}{B/R}{B/R}
Kulrath Knight
Creature - Elemental Knight
Flying
Wither (This deals damage to creatures in the form of -1/-1 counters.)
Creatures your opponents control with counters on them can't attack or block.
3 /
3
{3}{B/R}{B/R}
Kulrath Knight
Creature - Elemental Knight
Flying
Wither (This deals damage to creatures in the form of -1/-1 counters.)
Creatures your opponents control with counters on them can't attack or block.
3 /
3
--
Llanowar Wastes
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.
--
Llanowar Wastes
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.
{3}{B}{B}{B}
Midnight Banshee
Creature - Spirit
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.
5 /
5
{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
{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
{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}
Nest of Scarabs
Enchantment
Whenever you put one or more -1/-1 counters on a creature, create that many 1/1 black Insect creature tokens.
{2}{B}
Nest of Scarabs
Enchantment
Whenever you put one or more -1/-1 counters on a creature, create that many 1/1 black Insect creature tokens.
{1}{B}{G}
Obelisk Spider
Creature - Spider
Reach
Whenever Obelisk Spider deals combat damage to a creature, put a -1/-1 counter on that creature.
Whenever you put one or more -1/-1 counters on a creature, each opponent loses 1 life and you gain 1 life.
1 /
4
{1}{B}{G}
Obelisk Spider
Creature - Spider
Reach
Whenever Obelisk Spider deals combat damage to a creature, put a -1/-1 counter on that creature.
Whenever you put one or more -1/-1 counters on a creature, each opponent loses 1 life and you gain 1 life.
1 /
4
{1}{B}{G}
Obelisk Spider
Creature - Spider
Reach
Whenever Obelisk Spider deals combat damage to a creature, put a -1/-1 counter on that creature.
Whenever you put one or more -1/-1 counters on a creature, each opponent loses 1 life and you gain 1 life.
1 /
4
--
Overgrown Tomb
Land - Swamp Forest
({T}: Add {B} or {G}.)
As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
Overgrown Tomb
Land - Swamp Forest
({T}: Add {B} or {G}.)
As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{1}{B}{B}
Phyrexian Crusader
Creature - Phyrexian Zombie Knight
First strike, protection from red and from white
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
2 /
2
{1}{B}{B}
Phyrexian Crusader
Creature - Phyrexian Zombie Knight
First strike, protection from red and from white
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
2 /
2
--
Polluted Delta
Land
{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
--
Polluted Delta
Land
{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
{1}{U/B}
Scarscale Ritual
Sorcery
As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.
Draw two cards.
{1}{U/B}
Scarscale Ritual
Sorcery
As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.
Draw two cards.
{1}{U/B}
Scarscale Ritual
Sorcery
As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.
Draw two cards.
--
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}.)
--
Temple of Malady
Land
Temple of Malady enters tapped.
When Temple of Malady enters, scry 1.
{T}: Add {B} or {G}.
{3}{B}{R}
The Scorpion God
Legendary Creature - God
Whenever a creature with a -1/-1 counter on it dies, draw a card.
{1}{B}{R}: Put a -1/-1 counter on another target creature.
When The Scorpion God dies, return it to its owner's hand at the beginning of the next end step.
6 /
5
{B}
Unearth
Sorcery
Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)
{B}
Unearth
Sorcery
Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)
--
Urborg, Tomb of Yawgmoth
Legendary Land
Each land is a Swamp in addition to its other land types.
--
Verdant Catacombs
Land
{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.
{B}
Virulent Wound
Instant
Put a -1/-1 counter on target creature. When that creature dies this turn, its controller gets a poison counter.
{B}
Virulent Wound
Instant
Put a -1/-1 counter on target creature. When that creature dies this turn, its controller gets a poison counter.
{B}
Virulent Wound
Instant
Put a -1/-1 counter on target creature. When that creature dies this turn, its controller gets a poison counter.
{B}
Virulent Wound
Instant
Put a -1/-1 counter on target creature. When that creature dies this turn, its controller gets a poison counter.
{3}{G}
Wickerbough Elder
Creature - Treefolk Shaman
Wickerbough Elder enters with a -1/-1 counter on it.
{G}, Remove a -1/-1 counter from Wickerbough Elder: Destroy target artifact or enchantment.
4 /
4
{3}{G}
Wickerbough Elder
Creature - Treefolk Shaman
Wickerbough Elder enters with a -1/-1 counter on it.
{G}, Remove a -1/-1 counter from Wickerbough Elder: Destroy target artifact or enchantment.
4 /
4
--
Woodland Cemetery
Land
Woodland Cemetery enters tapped unless you control a Swamp or a Forest.
{T}: Add {B} or {G}.
--
Woodland Cemetery
Land
Woodland Cemetery enters tapped unless you control a Swamp or a Forest.
{T}: Add {B} or {G}.
{1}{B}
Crumbling Ashes
Enchantment
At the beginning of your upkeep, destroy target creature with a -1/-1 counter on it.
{2}{B/R}
Everlasting Torment
Enchantment
Players can't gain life.
Damage can't be prevented.
All damage is dealt as though its source had wither. (A source with wither deals damage to creatures in the form of -1/-1 counters.)