At the beginning of your upkeep, put a doom counter on Armageddon Clock.
At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.
{4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.
{2}
Armillary Sphere
Artifact
{2}, {T}, Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
--
Bloodfell Caves
Land
Bloodfell Caves enters the battlefield tapped.
When Bloodfell Caves enters the battlefield, you gain 1 life.
{T}: Add {B} or {R}.
--
Bojuka Bog
Land
Bojuka Bog enters the battlefield tapped.
When Bojuka Bog enters the battlefield, exile target player's graveyard.
{T}: Add {B}.
{1}{R}
Book Burning
Sorcery
Any player may have Book Burning deal 6 damage to them. If no one does, target player mills six cards.
{1}{R}
Braid of Fire
Enchantment
Cumulative upkeep--Add {R}. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
{3}{R}
Brand of Ill Omen
Enchantment - Aura
Enchant creature
Cumulative upkeep {R} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Any player may have Breaking Point deal 6 damage to them. If no one does, destroy all creatures. Creatures destroyed this way can't be regenerated.
{2}{R}
Browbeat
Sorcery
Any player may have Browbeat deal 5 damage to them. If no one does, target player draws three cards.
{B}
Burnt Offering
Instant
As an additional cost to cast this spell, sacrifice a creature.
Add X mana in any combination of {B} and/or {R}, where X is the sacrificed creature's mana value.
{3}{B}{B}
Carrion Wurm
Creature - Zombie Wurm
Whenever Carrion Wurm attacks or blocks, any player may exile three cards from their graveyard. If a player does, Carrion Wurm assigns no combat damage this turn.
6 /
5
{R}
Chain Lightning
Sorcery
Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.
{1}{R}
Chain of Plasma
Instant
Chain of Plasma deals 3 damage to any target. Then that player or that permanent's controller may discard a card. If the player does, they may copy this spell and may choose a new target for that copy.
{2}
Charcoal Diamond
Artifact
Charcoal Diamond enters the battlefield tapped.
{T}: Add {B}.
{5}{R}
Charmbreaker Devils
Creature - Devil
At the beginning of your upkeep, return an instant or sorcery card at random from your graveyard to your hand.
Whenever you cast an instant or sorcery spell, Charmbreaker Devils gets +4/+0 until end of turn.
4 /
4
{5}{B}
Choice of Damnations
Sorcery - Arcane
Target opponent chooses a number. You may have that player lose that much life. If you don't, that player sacrifices all but that many permanents.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{4}
Cursed Rack
Artifact
As Cursed Rack enters the battlefield, choose an opponent.
The chosen player's maximum hand size is four.
{3}
Darksteel Ingot
Artifact
Indestructible
{T}: Add one mana of any color.
{B}{B}
Dash Hopes
Instant
When you cast this spell, any player may pay 5 life. If a player does, counter Dash Hopes.
Counter target spell.
{2}{B}
Dauthi Embrace
Enchantment
{B}{B}: Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)
--
Detection Tower
Land
{T}: Add {C}.
{1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.
--
Dragonskull Summit
Land
Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
{5}{B}
Exhumer Thrull
Creature - Thrull
Haunt (When this creature dies, exile it haunting target creature.)
When Exhumer Thrull enters the battlefield or the creature it haunts dies, return target creature card from your graveyard to your hand.
3 /
3
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{2}
Fire Diamond
Artifact
Fire Diamond enters the battlefield tapped.
{T}: Add {R}.
--
Forge of Heroes
Land
{T}: Add {C}.
{T}: Choose target commander that entered the battlefield this turn. Put a +1/+1 counter on it if it's a creature and a loyalty counter on it if it's a planeswalker.
{2}{R}
Goblinslide
Enchantment
Whenever you cast a noncreature spell, you may pay {1}. If you do, create a 1/1 red Goblin creature token with haste.
{1}{B}
Grave Consequences
Instant
Each player may exile any number of cards from their graveyard. Then each player loses 1 life for each card in their graveyard.
Draw a card.
--
Graven Cairns
Land
{T}: Add {C}.
{B/R}, {T}: Add {B}{B}, {B}{R}, or {R}{R}.
{B}{B}{B}
Gravestorm
Enchantment
At the beginning of your upkeep, target opponent may exile a card from their graveyard. If that player doesn't, you may draw a card.
--
Halls of Mist
Land
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Creatures that attacked during their controller's last turn can't attack.
{4}{B}{R}
Havoc Festival
Enchantment
Players can't gain life.
At the beginning of each player's upkeep, that player loses half their life, rounded up.
{1}{B}{B}
Hissing Miasma
Enchantment
Whenever a creature attacks you, its controller loses 1 life.
--
Ice Floe
Land
You may choose not to untap Ice Floe during your untap step.
{T}: Tap target creature without flying that's attacking you. It doesn't untap during its controller's untap step for as long as Ice Floe remains tapped.
{1}{B}
Imp's Mischief
Instant
Change the target of target spell with a single target. You lose life equal to that spell's mana value.
{2}{R}
Impatience
Enchantment
At the beginning of each player's end step, if that player didn't cast a spell this turn, Impatience deals 2 damage to that player.
{4}
Infinite Hourglass
Artifact
At the beginning of your upkeep, put a time counter on Infinite Hourglass.
All creatures get +1/+0 for each time counter on Infinite Hourglass.
{3}: Remove a time counter from Infinite Hourglass. Any player may activate this ability but only during any upkeep step.
--
Izzet Boilerworks
Land
Izzet Boilerworks enters the battlefield tapped.
When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{R}.
{5}{B}{R}
Kaervek the Merciless
Legendary Creature - Human Shaman
Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target.
5 /
4
{3}{R}{R}
Kazuul, Tyrant of the Cliffs
Legendary Creature - Ogre Warrior
Whenever a creature an opponent controls attacks, if you're the defending player, create a 3/3 red Ogre creature token unless that creature's controller pays {3}.
5 /
4
{B}
Kederekt Parasite
Creature - Horror
Whenever an opponent draws a card, if you control a red permanent, you may have Kederekt Parasite deal 1 damage to that player.
1 /
1
{R}
Laccolith Rig
Enchantment - Aura
Enchant creature
Whenever enchanted creature becomes blocked, you may have it deal damage equal to its power to target creature. If you do, the first creature assigns no combat damage this turn.
{2}{B}{B}
Lethal Vapors
Enchantment
Whenever a creature enters the battlefield, destroy it.
{0}: Destroy Lethal Vapors. You skip your next turn. Any player may activate this ability.
{2}{R}
Longhorn Firebeast
Creature - Elemental Ox Beast
When Longhorn Firebeast enters the battlefield, any opponent may have it deal 5 damage to them. If a player does, sacrifice Longhorn Firebeast.
3 /
2
{1}{R}{R}
Mana Cache
Enchantment
At the beginning of each player's end step, put a charge counter on Mana Cache for each untapped land that player controls.
Remove a charge counter from Mana Cache: Add {C}. Any player may activate this ability but only during their turn before the end step.
{3}{R}{R}
Mana Geyser
Sorcery
Add {R} for each tapped land your opponents control.
{1}{R}
Molten Influence
Instant
Counter target instant or sorcery spell unless its controller has Molten Influence deal 4 damage to them.
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
{5}{B}{B}{B}
Myojin of Night's Reach
Legendary Creature - Spirit
Myojin of Night's Reach enters the battlefield with a divinity counter on it if you cast it from your hand.
Myojin of Night's Reach has indestructible as long as it has a divinity counter on it.
Remove a divinity counter from Myojin of Night's Reach: Each opponent discards their hand.
5 /
2
--
Nephalia Academy
Land
If a spell or ability an opponent controls causes you to discard a card, you may reveal that card and put it on top of your library instead of putting it anywhere else.
{T}: Add {C}.
{4}{B}{B}
Null Profusion
Enchantment
Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.
{1}{B}{R}
Pain Magnification
Enchantment
Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.
{2}{B}{B}
Pillar Tombs of Aku
World Enchantment
At the beginning of each player's upkeep, that player may sacrifice a creature. If that player doesn't, they lose 5 life and you sacrifice Pillar Tombs of Aku.
{5}
Psychosis Crawler
Artifact Creature - Phyrexian Horror
Psychosis Crawler's power and toughness are each equal to the number of cards in your hand.
Whenever you draw a card, each opponent loses 1 life.
* /
*
{4}
Rackling
Artifact Creature - Phyrexian Construct
At the beginning of each opponent's upkeep, Rackling deals X damage to that player, where X is 3 minus the number of cards in their hand.
2 /
2
{2}
Rakdos Signet
Artifact
{1}, {T}: Add {B}{R}.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
{5}{B}{B}
Repay in Kind
Sorcery
Each player's life total becomes the lowest life total among all players.
--
Rhystic Cave
Land
{T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant.
{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
{3}{R}
Shivan Wumpus
Creature - Beast
Trample
When Shivan Wumpus enters the battlefield, any player may sacrifice a land. If a player does, put Shivan Wumpus on top of its owner's library.
6 /
6
{B}
Shrieking Affliction
Enchantment
At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.
{1}{R}
Sirocco
Instant
Target player reveals their hand. For each blue instant card revealed this way, that player discards that card unless they pay 4 life.
{4}
Sisay's Ring
Artifact
{T}: Add {C}{C}.
{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.
{2}
Star Compass
Artifact
Star Compass enters the battlefield tapped.
{T}: Add one mana of any color that a basic land you control could produce.
--
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}.)
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
{B}{B}{B}{B}
Temporal Extortion
Sorcery
When you cast this spell, any player may pay half their life, rounded up. If a player does, counter Temporal Extortion.
Take an extra turn after this one.
{2}{B}{ // }{2}{R}
Toil // Trouble
Sorcery // Sorcery
Target player draws two cards and loses 2 life.
Fuse (You may cast one or both halves of this card from your hand.)
Trouble deals damage to target player equal to the number of cards in that player's hand.
Fuse (You may cast one or both halves of this card from your hand.)
--
Tresserhorn Sinks
Snow Land
Tresserhorn Sinks enters the battlefield tapped.
{T}: Add {B} or {R}.
{3}{B/R}{B/R}
Tyrannize
Sorcery
Target player discards their hand unless they pay 7 life.
{3}{B}{B}
Unnatural Hunger
Enchantment - Aura
Enchant creature
At the beginning of the upkeep of enchanted creature's controller, Unnatural Hunger deals damage equal to that creature's power to that player unless they sacrifice another creature.
{4}
Ur-Golem's Eye
Artifact
{T}: Add {C}{C}.
--
Urborg Volcano
Land
Urborg Volcano enters the battlefield tapped.
{T}: Add {B} or {R}.
{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.
{1}
Wayfarer's Bauble
Artifact
{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{3}{R}
Wildfire Eternal
Creature - Zombie Jackal Cleric
Afflict 4 (Whenever this creature becomes blocked, defending player loses 4 life.)
Whenever Wildfire Eternal attacks and isn't blocked, you may cast an instant or sorcery spell from your hand without paying its mana cost.
1 /
4
{2}{B}{B}{B}
Worms of the Earth
Enchantment
Players can't play lands.
Lands can't enter the battlefield.
At the beginning of each upkeep, any player may sacrifice two lands or have Worms of the Earth deal 5 damage to that player. If a player does either, destroy Worms of the Earth.
{1}{B}{R}
Xantcha, Sleeper Agent
Legendary Creature - Phyrexian Minion
Xantcha, Sleeper Agent enters the battlefield under the control of an opponent of your choice.
Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls.
{3}: Xantcha's controller loses 2 life and you draw a card. Any player may activate this ability.