Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{2}{R}
Arcbond
Instant
Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.
{1}{B}{R}
Backlash
Instant
Tap target untapped creature. That creature deals damage equal to its power to its controller.
--
Battlefield Forge
Land
{T}: Add {C}.
{T}: Add {R} or {W}. Battlefield Forge deals 1 damage to you.
{8}{R}
Blasphemous Act
Sorcery
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.
--
Bojuka Bog
Land
Bojuka Bog enters the battlefield tapped.
When Bojuka Bog enters the battlefield, exile target player's graveyard.
{T}: Add {B}.
{R}{W}
Boros Charm
Instant
Choose one --
• Boros Charm deals 4 damage to target player or planeswalker.
• Permanents you control gain indestructible until end of turn.
• Target creature gains double strike until end of turn.
--
Boros Garrison
Land
Boros Garrison enters the battlefield tapped.
When Boros Garrison enters the battlefield, return a land you control to its owner's hand.
{T}: Add {R}{W}.
{2}
Boros Signet
Artifact
{1}, {T}: Add {R}{W}.
{4}{R}
Brash Taunter
Creature - Goblin
Indestructible
Whenever Brash Taunter is dealt damage, it deals that much damage to target opponent.
{2}{R}, {T}: Brash Taunter fights another target creature.
1 /
1
{1}{W}{B}
Breena, the Demagogue
Legendary Creature - Bird Warlock
Flying
Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control.
1 /
3
--
Caves of Koilos
Land
{T}: Add {C}.
{T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you.
{2}{R}
Chaos Warp
Instant
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
{3}{W}
Combat Calligrapher
Creature - Bird Cleric
Flying
Inklings can't attack you or planeswalkers you control.
Whenever a player attacks one of your opponents, that attacking player creates a tapped 2/1 white and black Inkling creature token with flying that's attacking that opponent.
3 /
3
{3}{W}
Comeuppance
Instant
Prevent all damage that would be dealt to you and planeswalkers you control this turn by sources you don't control. If damage from a creature source is prevented this way, Comeuppance deals that much damage to that creature. If damage from a noncreature source is prevented this way, Comeuppance deals that much damage to the source's controller.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{R}{W}{B}
Crackling Doom
Instant
Crackling Doom deals 2 damage to each opponent. Each opponent sacrifices a creature with the greatest power among creatures that player controls.
{2}{W}
Cut a Deal
Sorcery
Each opponent draws a card, then you draw a card for each opponent who drew a card this way.
{1}{W}
Dawn Charm
Instant
Choose one --
• Prevent all combat damage that would be dealt this turn.
• Regenerate target creature.
• Counter target spell that targets you.
{R}{W}
Deflecting Palm
Instant
The next time a source of your choice would deal damage to you this turn, prevent that damage. If damage is prevented this way, Deflecting Palm deals that much damage to that source's controller.
{1}{B}{R}
Delirium
Instant
Cast this spell only during an opponent's turn.
Tap target creature that player controls. That creature deals damage equal to its power to the player. Prevent all combat damage that would be dealt to and dealt by the creature this turn.
{W}{B}
Despark
Instant
Exile target permanent with mana value 4 or greater.
{2}{R}{R}
Disrupt Decorum
Sorcery
Goad all creatures you don't control. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)
--
Dragonskull Summit
Land
Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
{1}{B}
Dream Devourer
Creature - Demon Cleric
Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.)
Whenever you foretell a card, Dream Devourer gets +2/+0 until end of turn.
0 /
3
{2}{W}
Duelist's Heritage
Enchantment
Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{2}
Fellwar Stone
Artifact
{T}: Add one mana of any color that a land an opponent controls could produce.
--
Foreboding Ruins
Land
As Foreboding Ruins enters the battlefield, you may reveal a Swamp or Mountain card from your hand. If you don't, Foreboding Ruins enters the battlefield tapped.
{T}: Add {B} or {R}.
{2}{W}
Generous Gift
Instant
Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.
{2}{W}
Ghostly Prison
Enchantment
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
{4}{R}{W}{W}
Gisela, Blade of Goldnight
Legendary Creature - Angel
Flying, first strike
If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead.
If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.
5 /
5
{1}{R}
Humble Defector
Creature - Human Rogue
{T}: Draw two cards. Target opponent gains control of Humble Defector. Activate only during your turn.
2 /
1
{3}{W}{B}
Inkshield
Instant
Prevent all combat damage that would be dealt to you this turn. For each 1 damage prevented this way, create a 2/1 white and black Inkling creature token with flying.
{1}{W}{B}
Kambal, Consul of Allocation
Legendary Creature - Human Advisor
Whenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.
2 /
3
{2}{B}{R}
Kardur, Doomscourge
Legendary Creature - Demon Berserker
When Kardur, Doomscourge enters the battlefield, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able.
Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.
4 /
3
{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
{2}{W}
Lapse of Certainty
Instant
Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.
{2}{W}
Loran of the Third Path
Legendary Creature - Human Artificer
Vigilance
When Loran of the Third Path enters the battlefield, destroy up to one target artifact or enchantment.
{T}: You and target opponent each draw a card.
2 /
1
{3}{W}
Mangara, the Diplomat
Legendary Creature - Human Cleric
Lifelink
Whenever an opponent attacks with creatures, if two or more of those creatures are attacking you and/or planeswalkers you control, draw a card.
Whenever an opponent casts their second spell each turn, draw a card.
2 /
4
{3}{W}
Michiko Konda, Truth Seeker
Legendary Creature - Human Advisor
Whenever a source an opponent controls deals damage to you, that player sacrifices a permanent.
2 /
2
{3}
Mirage Mirror
Artifact
{2}: Mirage Mirror becomes a copy of target artifact, creature, enchantment, or land until end of turn.
--
Mistveil Plains
Land - Plains
({T}: Add {W}.)
Mistveil Plains enters the battlefield tapped.
{W}, {T}: Put target card from your graveyard on the bottom of your library. Activate only if you control two or more white permanents.
--
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}.)
{1}{B}{B}
Nighthawk Scavenger
Creature - Vampire Rogue
Flying, deathtouch, lifelink
Nighthawk Scavenger's power is equal to 1 plus the number of card types among cards in your opponents' graveyards.
1+* /
3
{2}{W}
Nils, Discipline Enforcer
Legendary Creature - Human Cleric
At the beginning of your end step, for each player, put a +1/+1 counter on up to one target creature that player controls.
Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays {X}, where X is the number of counters on that creature.
2 /
2
--
Nomad Outpost
Land
Nomad Outpost enters the battlefield tapped.
{T}: Add {R}, {W}, or {B}.
{2}{R}{W}
Olórin's Searing Light
Instant
Each opponent exiles a creature with the greatest power among creatures that player controls.
Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, Olórin's Searing Light deals damage to each opponent equal to the power of the creature they exiled.
--
Orzhov Basilica
Land
Orzhov Basilica enters the battlefield tapped.
When Orzhov Basilica enters the battlefield, return a land you control to its owner's hand.
{T}: Add {W}{B}.
{2}
Orzhov Signet
Artifact
{1}, {T}: Add {W}{B}.
{W}
Path to Exile
Instant
Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.
--
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}.)
{1}{R}{W}{B}
Queen Marchesa
Legendary Creature - Human Assassin
Deathtouch, haste
When Queen Marchesa enters the battlefield, you become the monarch.
At the beginning of your upkeep, if an opponent is the monarch, create a 1/1 black Assassin creature token with deathtouch and haste.
3 /
3
--
Rakdos Carnarium
Land
Rakdos Carnarium enters the battlefield tapped.
When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand.
{T}: Add {B}{R}.
{B}{R}
Rakdos Charm
Instant
Choose one --
• Exile target player's graveyard.
• Destroy target artifact.
• Each creature deals 1 damage to its controller.
{2}
Rakdos Signet
Artifact
{1}, {T}: Add {B}{R}.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
{1}{W}
Reprieve
Instant
Return target spell to its owner's hand.
Draw a card.
{R}{R}
Reverberate
Instant
Copy target instant or sorcery spell. You may choose new targets for the copy.
{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}{W}
Selfless Squire
Creature - Human Soldier
Flash
When Selfless Squire enters the battlefield, prevent all damage that would be dealt to you this turn.
Whenever damage that would be dealt to you is prevented, put that many +1/+1 counters on Selfless Squire.
1 /
1
{3}{W}{B}
Shadrix Silverquill
Legendary Creature - Elder Dragon
Flying, double strike
At the beginning of combat on your turn, you may choose two. Each mode must target a different player.
• Target player creates a 2/1 white and black Inkling creature token with flying.
• Target player draws a card and loses 1 life.
• Target player puts a +1/+1 counter on each creature they control.
2 /
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.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{2}{W}
Stroke of Midnight
Instant
Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.
{3}
Sunforger
Artifact - Equipment
Equipped creature gets +4/+0.
{R}{W}, Unattach Sunforger: Search your library for a red or white instant card with mana value 4 or less and cast that card without paying its mana cost. Then shuffle.
Equip {3}
--
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}.)
{W}
Swords to Plowshares
Instant
Exile target creature. Its controller gains life equal to its power.
{2}{R}{W}
Take the Bait
Instant
Cast this spell only during an opponent's turn and only during combat.
Prevent all combat damage that would be dealt to you and planeswalkers you control this turn. Untap all attacking creatures and goad them. After this phase, there is an additional combat phase.
{2}
Talisman of Conviction
Artifact
{T}: Add {C}.
{T}: Add {R} or {W}. Talisman of Conviction deals 1 damage to you.
{2}
Talisman of Hierarchy
Artifact
{T}: Add {C}.
{T}: Add {W} or {B}. Talisman of Hierarchy deals 1 damage to you.
{2}
Talisman of Indulgence
Artifact
{T}: Add {C}.
{T}: Add {B} or {R}. Talisman of Indulgence deals 1 damage to you.
{3}{R}{W}
Taunt from the Rampart
Sorcery
Goad all creatures your opponents control. Until your next turn, those creatures can't block. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)
--
Temple of Malice
Land
Temple of Malice enters the battlefield tapped.
When Temple of Malice enters the battlefield, scry 1.
{T}: Add {B} or {R}.
--
Temple of Silence
Land
Temple of Silence enters the battlefield tapped.
When Temple of Silence enters the battlefield, scry 1.
{T}: Add {W} or {B}.
--
Temple of Triumph
Land
Temple of Triumph enters the battlefield tapped.
When Temple of Triumph enters the battlefield, scry 1.
{T}: Add {R} or {W}.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{2}{W}
Teyo, Geometric Tactician
Legendary Planeswalker - Teyo
When Teyo, Geometric Tactician enters the battlefield, create a 0/4 white Wall creature token with defender and flying.
+1: You and target opponent each draw a card.
-2: Choose left or right. Until your next turn, each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.
L:
3
{2}{W}{B}
Utter End
Instant
Exile target nonland permanent.
{1}{B}{B}
Vampire Nighthawk
Creature - Vampire Shaman
Flying, deathtouch, lifelink
2 /
3
{1}{W}{B}
Verrak, Warped Sengir
Legendary Creature - Vampire
Flying, deathtouch, lifelink
Whenever you activate an ability that isn't a mana ability, if life was paid to activate it, you may pay that much life again. If you do, copy that ability. You may choose new targets for the copy.
2 /
2
{1}{R}{ // }{W}
Wear // Tear
Instant // Instant
Destroy target artifact.
Fuse (You may cast one or both halves of this card from your hand.)
Destroy target enchantment.
Fuse (You may cast one or both halves of this card from your hand.)
{W}
Weathered Wayfarer
Creature - Human Nomad Cleric
{W}, {T}: Search your library for a land card, reveal it, put it into your hand, then shuffle. Activate only if an opponent controls more lands than you.
1 /
1
{3}{W}
Windborn Muse
Creature - Spirit
Flying
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
2 /
3
{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.