Tap an untapped Cephalid you control: Tap target permanent.
{U}{U}{U}: Tap all creatures without flying.
3 /
3
{4}{U}{U}
Aetherling
Creature - Shapeshifter
{U}: Exile Aetherling. Return it to the battlefield under its owner's control at the beginning of the next end step.
{U}: Aetherling can't be blocked this turn.
{1}: Aetherling gets +1/-1 until end of turn.
{1}: Aetherling gets -1/+1 until end of turn.
4 /
5
{3}{R}
Anger
Creature - Incarnation
Haste
As long as Anger is in your graveyard and you control a Mountain, creatures you control have haste.
2 /
2
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{3}{U}{U}{U}
Arcanis the Omnipotent
Legendary Creature - Wizard
{T}: Draw three cards.
{2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.
3 /
4
{6}{B}{B}
Avatar of Woe
Creature - Avatar
If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
{T}: Destroy target creature. It can't be regenerated.
6 /
5
{3}
Basalt Monolith
Artifact
Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.
{B}{B}{R}
Bedevil
Instant
Destroy target artifact, creature, or planeswalker.
{3}{U}{U}
Beguiler of Wills
Creature - Human Wizard
{T}: Gain control of target creature with power less than or equal to the number of creatures you control.
1 /
1
{2}{B}
Buried Alive
Sorcery
Search your library for up to three creature cards, put them into your graveyard, then shuffle.
{3}{R}
Captivating Crew
Creature - Human Pirate
{3}{R}: Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.
4 /
3
{5}
Cauldron of Souls
Artifact
{T}: Choose any number of target creatures. Each of those creatures gains persist until end of turn. (When it 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.)
{U}{B}
Cavern Harpy
Creature - Harpy Beast
Flying
When Cavern Harpy enters the battlefield, return a blue or black creature you control to its owner's hand.
Pay 1 life: Return Cavern Harpy to its owner's hand.
2 /
1
{3}{B}{B}
Chainer, Dementia Master
Legendary Creature - Human Minion
All Nightmares get +1/+1.
{B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types.
When Chainer, Dementia Master leaves the battlefield, exile all Nightmares.
3 /
3
{7}
Chromatic Orrery
Legendary Artifact
You may spend mana as though it were mana of any color.
{T}: Add {C}{C}{C}{C}{C}.
{5}, {T}: Draw a card for each color among permanents you control.
{3}
Commander's Sphere
Artifact
{T}: Add one mana of any color in your commander's color identity.
Sacrifice Commander's Sphere: Draw a card.
{5}
Conjurer's Closet
Artifact
At the beginning of your end step, you may exile target creature you control, then return that card to the battlefield under your control.
--
Crumbling Necropolis
Land
Crumbling Necropolis enters the battlefield tapped.
{T}: Add {U}, {B}, or {R}.
{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.
{2}
Dimir Signet
Artifact
{1}, {T}: Add {U}{B}.
{2}{U}
Displace
Instant
Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.
--
Dragonskull Summit
Land
Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
{2}{B}{B}
Dread Return
Sorcery
Return target creature card from your graveyard to the battlefield.
Flashback--Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
--
Emergence Zone
Land
{T}: Add {C}.
{1}, {T}, Sacrifice Emergence Zone: You may cast spells this turn as though they had flash.
{4}
Empowered Autogenerator
Artifact
Empowered Autogenerator enters the battlefield tapped.
{T}: Put a charge counter on Empowered Autogenerator. Add X mana of any one color, where X is the number of charge counters on Empowered Autogenerator.
{2}{B}{B}
Endling
Creature - Zombie Shapeshifter
{B}: Endling gains menace until end of turn.
{B}: Endling gains deathtouch until end of turn.
{B}: Endling gains undying until end of turn. (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}: Endling gets +1/-1 or -1/+1 until end of turn.
3 /
3
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{R}
Faithless Looting
Sorcery
Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{1}{B}
Feed the Swarm
Sorcery
Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.
{1}{R}{R}
Feldon of the Third Path
Legendary Creature - Human Artificer
{2}{R}, {T}: Create a token that's a copy of target creature card in your graveyard, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.
2 /
3
{3}{B}{B}
Final Parting
Sorcery
Search your library for two cards. Put one into your hand and the other into your graveyard. Then shuffle.
{4}{B}{B}
Geth, Lord of the Vault
Legendary Creature - Phyrexian Zombie
Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
{X}{B}: Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield under your control tapped. Then that player mills X cards.
5 /
5
{2}{U}
Ghostly Flicker
Instant
Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.
{5}
Gilded Lotus
Artifact
{T}: Add three mana of any one color.
--
Grixis Panorama
Land
{T}: Add {C}.
{1}, {T}, Sacrifice Grixis Panorama: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.
{5}{R}{R}
Hateflayer
Creature - Elemental
Wither (This deals damage to creatures in the form of -1/-1 counters.)
{2}{R}, {Q}: Hateflayer deals damage equal to its power to any target. ({Q} is the untap symbol.)
5 /
5
{3}{U}{B}
Havengul Lich
Creature - Zombie Wizard
{1}: You may cast target creature card in a graveyard this turn. When you cast it this turn, Havengul Lich gains all activated abilities of that card until end of turn.
4 /
4
{2}{U}
Horseshoe Crab
Creature - Crab
{U}: Untap Horseshoe Crab.
1 /
3
{2}
Illusionist's Bracers
Artifact - Equipment
Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy.
Equip {3}
{2}
Izzet Signet
Artifact
{1}, {T}: Add {U}{R}.
{2}{U}
Laboratory Maniac
Creature - Human Wizard
If you would draw a card while your library has no cards in it, you win the game instead.
2 /
2
{4}
Lithoform Engine
Legendary Artifact
{2}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy.
{3}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.
{4}, {T}: Copy target permanent spell you control. (The copy becomes a token.)
{1}{U}{B}{R}
Mairsil, the Pretender
Legendary Creature - Human Wizard
When Mairsil, the Pretender enters the battlefield, you may exile an artifact or creature card from your hand or graveyard and put a cage counter on it.
Mairsil, the Pretender has all activated abilities of all cards you own in exile with cage counters on them. You may activate each of those abilities only once each turn.
4 /
4
{3}{U}{R}
Mercurial Chemister
Creature - Human Wizard
{U}, {T}: Draw two cards.
{R}, {T}, Discard a card: Mercurial Chemister deals damage to target creature equal to the discarded card's mana value.
2 /
3
{3}
Mirage Mirror
Artifact
{2}: Mirage Mirror becomes a copy of target artifact, creature, enchantment, or land until end of turn.
{4}{U}{U}
Mirror Match
Instant
Cast this spell only during the declare blockers step.
For each creature attacking you or a planeswalker you control, create a token that's a copy of that creature and that's blocking that creature. Exile those tokens at end of combat.
{3}{U}{U}
Mirror-Mad Phantasm
Creature - Spirit
Flying
{1}{U}: Mirror-Mad Phantasm's owner shuffles it into their library. If that player does, they reveal cards from the top of that library until a card named Mirror-Mad Phantasm is revealed. The player puts that card onto the battlefield and all other cards revealed this way into their graveyard.
5 /
1
{3}{U}{U}
Morphling
Creature - Shapeshifter
{U}: Untap Morphling.
{U}: Morphling gains flying until end of turn.
{U}: Morphling gains shroud until end of turn. (It can't be the target of spells or abilities.)
{1}: Morphling gets +1/-1 until end of turn.
{1}: Morphling gets -1/+1 until end of turn.
3 /
3
{4}
Nevinyrral's Disk
Artifact
Nevinyrral's Disk enters the battlefield tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.
{1}{B}
Nightscape Familiar
Creature - Zombie
Blue spells and red spells you cast cost {1} less to cast.
{1}{B}: Regenerate Nightscape Familiar.
1 /
1
{1}{R}{R}{R}
Obsidian Fireheart
Creature - Elemental
{1}{R}{R}: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you." (The land continues to burn after Obsidian Fireheart has left the battlefield.)
4 /
4
{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.
{2}
Perpetual Timepiece
Artifact
{T}: Mill two cards.
{2}, Exile Perpetual Timepiece: Shuffle any number of target cards from your graveyard into your library.
{1}{U}{U}
Polymorphist's Jest
Instant
Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.
{3}{U}{U}
Quicksilver Elemental
Creature - Elemental
{U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. (If any of the abilities use that creature's name, use this creature's name instead.)
You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities.
3 /
4
{2}
Rakdos Signet
Artifact
{1}, {T}: Add {B}{R}.
{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.
{1}{U}{U}
Serendib Sorcerer
Creature - Human Wizard
{T}: Target creature other than Serendib Sorcerer has base power and toughness 0/2 until end of turn.
1 /
1
{5}{B}{B}
Shauku, Endbringer
Legendary Creature - Vampire
Flying
Shauku, Endbringer can't attack if there's another creature on the battlefield.
At the beginning of your upkeep, you lose 3 life.
{T}: Exile target creature and put a +1/+1 counter on Shauku.
5 /
5
--
Smoldering Marsh
Land - Swamp Mountain
({T}: Add {B} or {R}.)
Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Mountain
Basic Snow Land - Mountain
({T}: Add {R}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
--
Snow-Covered Swamp
Basic Snow Land - Swamp
({T}: Add {B}.)
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{5}
Soliton
Artifact Creature - Construct
{U}: Untap Soliton.
3 /
4
{6}
Soul of New Phyrexia
Artifact Creature - Phyrexian Avatar
Trample
{5}: Permanents you control gain indestructible until end of turn.
{5}, Exile Soul of New Phyrexia from your graveyard: Permanents you control gain indestructible until end of turn.
6 /
6
{3}{U}
Spark Double
Creature - Illusion
You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.
0 /
0
{3}
Staff of Domination
Artifact
{1}: Untap Staff of Domination.
{2}, {T}: You gain 1 life.
{3}, {T}: Untap target creature.
{4}, {T}: Tap target creature.
{5}, {T}: Draw a card.
--
Sulfur Falls
Land
Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.
{T}: Add {U} or {R}.
--
Sunken Hollow
Land - Island Swamp
({T}: Add {U} or {B}.)
Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.
{3}
Sunstone
Artifact
{2}, Sacrifice a snow land: Prevent all combat damage that would be dealt this turn.
{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}
{3}{U}{B}
Taigam, Sidisi's Hand
Legendary Creature - Human Wizard
Skip your draw step.
At the beginning of your upkeep, look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
{B}, {T}, Exile X cards from your graveyard: Target creature gets -X/-X until end of turn.
3 /
4
{1}{U}
Teferi's Time Twist
Instant
Exile target permanent you control. Return that card to the battlefield under its owner's control at the beginning of the next end step. If it enters the battlefield as a creature, it enters with an additional +1/+1 counter on it.
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{3}
Thousand-Year Elixir
Artifact
You may activate abilities of creatures you control as though those creatures had haste.
{1}, {T}: Untap target creature.
{3}{R}{R}
Torchling
Creature - Shapeshifter
{R}: Untap Torchling.
{R}: Target creature blocks Torchling this turn if able.
{R}: Change the target of target spell that targets only Torchling.
{1}: Torchling gets +1/-1 until end of turn.
{1}: Torchling gets -1/+1 until end of turn.
3 /
3
{3}{B}
Tree of Perdition
Creature - Plant
Defender
{T}: Exchange target opponent's life total with Tree of Perdition's toughness.
0 /
13
{5}{U}{U}
Trench Behemoth
Creature - Kraken
Return a land you control to its owner's hand: Untap Trench Behemoth. It gains hexproof until end of turn.
Landfall -- Whenever a land enters the battlefield under your control, target creature an opponent controls attacks during its controller's next combat phase if able.
7 /
7
{3}{B}{B}{B}
Visara the Dreadful
Legendary Creature - Gorgon
Flying
{T}: Destroy target creature. It can't be regenerated.
5 /
5
{2}{B}
Dark Impostor
Creature - Vampire Assassin
{4}{B}{B}: Exile target creature and put a +1/+1 counter on Dark Impostor.
Dark Impostor has all activated abilities of all creature cards exiled with it.
2 /
2
{1}{U}
Riptide Mangler
Creature - Beast
{1}{U}: Change Riptide Mangler's base power to target creature's power. (This effect lasts indefinitely.)
0 /
3
{3}
Scroll of Fate
Artifact
{T}: Manifest a card from your hand. (Put that card onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
{2}
Surveyor's Scope
Artifact
{T}, Exile Surveyor's Scope: Search your library for up to X basic land cards, where X is the number of players who control at least two more lands than you. Put those cards onto the battlefield, then shuffle.
{U}{U}
Thassa's Oracle
Creature - Merfolk Wizard
When Thassa's Oracle enters the battlefield, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)