As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life.
5 /
4
{G}{W}{U}{B}
Atraxa, Praetors' Voice
Legendary Creature - Phyrexian Angel Horror
Flying, vigilance, deathtouch, lifelink
At the beginning of your end step, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
4 /
4
{3}{G}{G}
Bellowing Tanglewurm
Creature - Wurm
Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Other green creatures you control have intimidate.
4 /
4
{1}{U}
Blighted Agent
Creature - Phyrexian Human Rogue
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Blighted Agent can't be blocked.
1 /
1
{12}
Blightsteel Colossus
Artifact Creature - Phyrexian Golem
Trample, infect, indestructible
If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.
11 /
11
{2}{G}{G}
Bloodspore Thrinax
Creature - Lizard
Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)
Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.
2 /
2
{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.
{5}{W}{W}
Bruna, the Fading Light
Legendary Creature - Angel Horror
When you cast this spell, you may return target Angel or Human creature card from your graveyard to the battlefield.
Flying, vigilance
(Melds with Gisela, the Broken Blade.)
5 /
7
{1}{U}{U}
Cryptoplasm
Creature - Shapeshifter
At the beginning of your upkeep, you may have Cryptoplasm become a copy of another target creature, except it has this ability.
2 /
2
{5}{B}{B}
Deathbringer Regent
Creature - Dragon
Flying
When Deathbringer Regent enters the battlefield, if you cast it from your hand and there are five or more other creatures on the battlefield, destroy all other creatures.
5 /
6
{7}
Elbrus, the Binding Blade
Legendary Artifact - Equipment
Equipped creature gets +1/+0.
When equipped creature deals combat damage to a player, unattach Elbrus, the Binding Blade, then transform it.
Equip {1}
--
Withengar Unbound
Legendary Creature - Demon
Flying, intimidate, trample (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Whenever a player loses the game, put thirteen +1/+1 counters on Withengar Unbound.
{5}{W}{W}
Elesh Norn, Grand Cenobite
Legendary Creature - Phyrexian Praetor
Vigilance
Other creatures you control get +2/+2.
Creatures your opponents control get -2/-2.
4 /
7
{3}{W}{W}
Elspeth Tirel
Legendary Planeswalker - Elspeth
+2: You gain 1 life for each creature you control.
-2: Create three 1/1 white Soldier creature tokens.
-5: Destroy all other permanents except for lands and tokens.
L:
4
{5}{G}{G}
Engulfing Slagwurm
Creature - Wurm
Whenever Engulfing Slagwurm blocks or becomes blocked by a creature, destroy that creature. You gain life equal to that creature's toughness.
7 /
7
{0}
Everflowing Chalice
Artifact
Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)
Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked.
{T}: Add {C} for each charge counter on Everflowing Chalice.
{5}{W}{W}
Exquisite Archangel
Creature - Angel
Flying
If you would lose the game, instead exile Exquisite Archangel and your life total becomes equal to your starting life total.
5 /
5
{2}{G}
Fertilid
Creature - Elemental
Fertilid enters the battlefield with two +1/+1 counters on it.
{1}{G}, Remove a +1/+1 counter from Fertilid: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles.
0 /
0
{3}{B}
Flesh-Eater Imp
Creature - Phyrexian Imp
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Sacrifice a creature: Flesh-Eater Imp gets +1/+1 until end of turn.
2 /
2
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{2}{W}{B}{G}
Ghave, Guru of Spores
Legendary Creature - Fungus Shaman
Ghave, Guru of Spores enters the battlefield with five +1/+1 counters on it.
{1}, Remove a +1/+1 counter from a creature you control: Create a 1/1 green Saproling creature token.
{1}, Sacrifice a creature: Put a +1/+1 counter on target creature.
0 /
0
{2}{W}{W}
Gisela, the Broken Blade
Legendary Creature - Angel Horror
Flying, first strike, lifelink
At the beginning of your end step, if you both own and control Gisela, the Broken Blade and a creature named Bruna, the Fading Light, exile them, then meld them into Brisela, Voice of Nightmares.
4 /
3
{G}
Glistener Elf
Creature - Phyrexian Elf Warrior
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
1 /
1
{4}{W}{W}
Goldnight Redeemer
Creature - Angel
Flying
When Goldnight Redeemer enters the battlefield, you gain 2 life for each other creature you control.
4 /
4
{4}{W}
Guardian of the Gateless
Creature - Angel
Flying
Guardian of the Gateless can block any number of creatures.
Whenever Guardian of the Gateless blocks, it gets +1/+1 until end of turn for each creature it's blocking.
3 /
3
{3}{B}
Hand of the Praetors
Creature - Phyrexian Zombie
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Other creatures you control with infect get +1/+1.
Whenever you cast a creature spell with infect, target player gets a poison counter.
3 /
2
{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
{1}{W}{B}
Harsh Sustenance
Instant
Harsh Sustenance deals X damage to any target and you gain X life, where X is the number of creatures you control.
{2}
Hivestone
Artifact
Creatures you control are Slivers in addition to their other creature types.
{5}{B}{B}
Hollowborn Barghest
Creature - Demon Dog
At the beginning of your upkeep, if you have no cards in hand, each opponent loses 2 life.
At the beginning of each opponent's upkeep, if that player has no cards in hand, they lose 2 life.
7 /
6
{1}{B}{B}
Ichor Rats
Creature - Phyrexian Rat
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
When Ichor Rats enters the battlefield, each player gets a poison counter.
2 /
1
{3}{B}{B}
Incremental Blight
Sorcery
Put a -1/-1 counter on target creature, two -1/-1 counters on another target creature, and three -1/-1 counters on a third target creature.
{3}{U}{U}
Inexorable Tide
Enchantment
Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
{U/B}{U/B}
Inkfathom Infiltrator
Creature - Merfolk Rogue
Inkfathom Infiltrator can't block and can't be blocked.
2 /
1
--
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.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{5}{B}{B}
Liliana, Death Wielder
Legendary Planeswalker - Liliana
+2: Put a -1/-1 counter on up to one target creature.
-3: Destroy target creature with a -1/-1 counter on it.
-10: Return all creature cards from your graveyard to the battlefield.
L:
5
{1}{W}
Lost Leonin
Creature - Phyrexian Cat Soldier
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
2 /
1
{1}{G}
Melira, Sylvok Outcast
Legendary Creature - Human Scout
You can't get poison counters.
Creatures you control can't have -1/-1 counters put on them.
Creatures your opponents control lose infect.
2 /
2
{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.
{4}{G}{G}
Phyrexian Swarmlord
Creature - Phyrexian Insect Horror
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
At the beginning of your upkeep, create a 1/1 green Phyrexian Insect creature token with infect for each poison counter your opponents have.
4 /
4
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
{10}{G}
Primeval Protector
Creature - Avatar
This spell costs {1} less to cast for each creature your opponents control.
When Primeval Protector enters the battlefield, put a +1/+1 counter on each other creature you control.
10 /
10
{3}{G}{G}
Putrefax
Creature - Phyrexian Horror
Trample, haste
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
At the beginning of the end step, sacrifice Putrefax.
5 /
3
{1}
Pyramid of the Pantheon
Artifact
{2}, {T}: Add one mana of any color. Put a brick counter on Pyramid of the Pantheon.
{T}: Add three mana of any one color. Activate only if there are three or more brick counters on Pyramid of the Pantheon.
{4}{B}
Reaper of Sheoldred
Creature - Phyrexian Horror
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever a source deals damage to Reaper of Sheoldred, that source's controller gets a poison counter.
2 /
5
{1}{B}{B}
Septic Rats
Creature - Phyrexian Rat
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever Septic Rats attacks, if defending player is poisoned, it gets +1/+1 until end of turn.
2 /
2
{4}
Serrated Arrows
Artifact
Serrated Arrows enters the battlefield with three arrowhead counters on it.
At the beginning of your upkeep, if there are no arrowhead counters on Serrated Arrows, sacrifice it.
{T}, Remove an arrowhead counter from Serrated Arrows: Put a -1/-1 counter on target creature.
{3}{W}{W}
Shattered Angel
Creature - Phyrexian Angel
Flying
Whenever a land enters the battlefield under an opponent's control, you may gain 3 life.
3 /
3
{3}{W}{W}
Shriek Raptor
Creature - Phyrexian Bird
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
2 /
3
{2}{B}{B}
Skinrender
Creature - Phyrexian Zombie
When Skinrender enters the battlefield, put three -1/-1 counters on target creature.
3 /
3
{3}{B}{B}
Skithiryx, the Blight Dragon
Legendary Creature - Phyrexian Dragon Skeleton
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{B}: Skithiryx, the Blight Dragon gains haste until end of turn.
{B}{B}: Regenerate Skithiryx.
4 /
4
{2}{B}{B}
Soul Snuffers
Creature - Elemental Shaman
When Soul Snuffers enters the battlefield, put a -1/-1 counter on each creature.
3 /
3
{4}{U}{U}
Sphinx of Jwar Isle
Creature - Sphinx
Flying
Shroud (This creature can't be the target of spells or abilities.)
You may look at the top card of your library any time.
5 /
5
{4}{G}{G}
Spinebiter
Creature - Phyrexian Beast
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
You may have Spinebiter assign its combat damage as though it weren't blocked.
3 /
4
--
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}.)
{3}{G}
Tangle Angler
Creature - Phyrexian Horror
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{G}: Target creature blocks Tangle Angler this turn if able.
1 /
5
{2}{B}{G}{U}
The Mimeoplasm
Legendary Creature - Ooze
As The Mimeoplasm enters the battlefield, you may exile two creature cards from graveyards. If you do, it enters the battlefield as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.
0 /
0
{4}{B}{B}
Toxic Nim
Creature - Phyrexian Zombie
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{B}: Regenerate Toxic Nim.
4 /
1
{2}{U}
Vedalken Anatomist
Creature - Phyrexian Vedalken Wizard
{2}{U}, {T}: Put a -1/-1 counter on target creature. You may tap or untap that creature.
1 /
2
{3}{U}
Viral Drake
Creature - Phyrexian Drake
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{3}{U}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
1 /
4
{1}{G}{G}
Viridian Corrupter
Creature - Phyrexian Elf Shaman
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
When Viridian Corrupter enters the battlefield, destroy target artifact.
2 /
2
{G}
Virulent Sliver
Creature - Sliver
All Sliver creatures have poisonous 1. (Whenever a Sliver deals combat damage to a player, that player gets a poison counter. A player with ten or more poison counters loses the game.)
1 /
1
{1}{B}{B}
Whispering Specter
Creature - Phyrexian Specter
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever Whispering Specter deals combat damage to a player, you may sacrifice it. If you do, that player discards a card for each poison counter they have.
1 /
1
{8}{G}{G}{G}
Worldspine Wurm
Creature - Wurm
Trample
When Worldspine Wurm dies, create three 5/5 green Wurm creature tokens with trample.
When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.