
Martial Law | Enchantment | | At the beginning of your upkeep, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.) | Tyler Jacobson

Palisade Giant | Creature | Giant Soldier | All damage that would be dealt to you and other permanents you control is dealt to Palisade Giant instead. | Greg Staples

Precinct Captain | Creature | Human Soldier | First strike
Whenever Precinct Captain deals combat damage to a player, create a 1/1 white Soldier creature token. | Steve Prescott

Rest in Peace | Enchantment | | When Rest in Peace enters the battlefield, exile all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead. | Terese Nielsen
LSV

Conjured Currency | Enchantment | | At the beginning of your upkeep, you may exchange control of Conjured Currency and target permanent you neither own nor control. | Steve Argyle

Cyclonic Rift | Instant | | Return target nonland permanent you don't control to its owner's hand.
Overload {6}{U} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.") | Chris Rahn

Search the City | Enchantment | | When Search the City enters the battlefield, exile the top five cards of your library.
Whenever you play a card with the same name as one of the exiled cards, you may put one of those cards with that name into its owner's hand. Then if there are no cards exiled with Search the City, sacrifice it. If you do, take an extra turn after this one. | Jack Wang

Sphinx of the Chimes | Creature | Sphinx | Flying
Discard two nonland cards with the same name: Draw four cards. | Greg Staples

Desecration Demon | Creature | Demon | Flying
At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it. | Jason Chan

Grave Betrayal | Enchantment | | Whenever a creature you don't control dies, return it to the battlefield under your control with an additional +1/+1 counter on it at the beginning of the next end step. That creature is a black Zombie in addition to its other colors and types. | Lucas Graciano

Pack Rat | Creature | Rat | Pack Rat's power and toughness are each equal to the number of Rats you control.
{2}{B}, Discard a card: Create a token that's a copy of Pack Rat. | Kev Walker

Underworld Connections | Enchantment | Aura | Enchant land
Enchanted land has "{T}, Pay 1 life: Draw a card." | Yeong-Hao Han

Ash Zealot | Creature | Human Warrior | First strike, haste
Whenever a player casts a spell from a graveyard, Ash Zealot deals 3 damage to that player. | Eric Deschamps

Chaos Imps | Creature | Imp | Flying
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)
Chaos Imps has trample as long as it has a +1/+1 counter on it. | Tyler Jacobson

Guild Feud | Enchantment | | At the beginning of your upkeep, target opponent reveals the top three cards of their library, may put a creature card from among them onto the battlefield, then puts the rest into their graveyard. You do the same with the top three cards of your library. If two creatures are put onto the battlefield this way, those creatures fight each other. | Karl Kopinski

Mizzium Mortars | Sorcery | | Mizzium Mortars deals 4 damage to target creature you don't control.
Overload {3}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.") | Noah Bradley

Deadbridge Goliath | Creature | Insect | Scavenge {4}{G}{G} ({4}{G}{G}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.) | Chase Stone

Death's Presence | Enchantment | | Whenever a creature you control dies, put X +1/+1 counters on target creature you control, where X is the power of the creature that died. | Ryan Barger

Mana Bloom | Enchantment | | Mana Bloom enters the battlefield with X charge counters on it.
Remove a charge counter from Mana Bloom: Add one mana of any color. Activate only once each turn.
At the beginning of your upkeep, if Mana Bloom has no charge counters on it, return it to its owner's hand. | Mike Bierek

Wild Beastmaster | Creature | Human Shaman | Whenever Wild Beastmaster attacks, each other creature you control gets +X/+X until end of turn, where X is Wild Beastmaster's power. | Kev Walker

Archon of the Triumvirate | Creature | Archon | Flying
Whenever Archon of the Triumvirate attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.) | David Rapoza

Detention Sphere | Enchantment | | When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.
When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control. | Kev Walker

Righteous Authority | Enchantment | Aura | Enchant creature
Enchanted creature gets +1/+1 for each card in its controller's hand.
At the beginning of the draw step of enchanted creature's controller, that player draws an additional card. | Scott Chou

Supreme Verdict | Sorcery | | This spell can't be countered.
Destroy all creatures. | Sam Burley

Azor's Elocutors | Creature | Human Advisor | At the beginning of your upkeep, put a filibuster counter on Azor's Elocutors. Then if Azor's Elocutors has five or more filibuster counters on it, you win the game.
Whenever a source deals damage to you, remove a filibuster counter from Azor's Elocutors. | Johannes Voss

Collective Blessing | Enchantment | | Creatures you control get +3/+3. | Svetlin Velinov

Loxodon Smiter | Creature | Elephant Soldier | This spell can't be countered.
If a spell or ability an opponent controls causes you to discard Loxodon Smiter, put it onto the battlefield instead of putting it into your graveyard. | Ryan Barger

Wayfaring Temple | Creature | Elemental | Wayfaring Temple's power and toughness are each equal to the number of creatures you control.
Whenever Wayfaring Temple deals combat damage to a player, populate. (Create a token that's a copy of a creature token you control.) | Peter Mohrbacher

Growing Ranks | Enchantment | | At the beginning of your upkeep, populate. (Create a token that's a copy of a creature token you control.) | Seb McKinnon

Counterflux | Instant | | This spell can't be countered.
Counter target spell you don't control.
Overload {1}{U}{U}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.") | Scott M. Fischer

Firemind's Foresight | Instant | | Search your library for an instant card with mana value 3, reveal it, and put it into your hand. Then repeat this process for instant cards with mana values 2 and 1. Then shuffle. | Dan Scott

Hypersonic Dragon | Creature | Dragon | Flying, haste
You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.) | Dan Scott

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. | Wesley Burt

Nivmagus Elemental | Creature | Elemental | Exile an instant or sorcery spell you control: Put two +1/+1 counters on Nivmagus Elemental. (That spell won't resolve.) | Mike Bierek

Carnival Hellsteed | Creature | Nightmare Horse | First strike, haste
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.) | Chase Stone

Dreadbore | Sorcery | | Destroy target creature or planeswalker. | Wayne Reynolds

Havoc Festival | Enchantment | | Players can't gain life.
At the beginning of each player's upkeep, that player loses half their life, rounded up. | Johannes Voss

Slaughter Games | Sorcery | | This spell can't be countered.
Choose a nonland card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles. | Steve Prescott

Cryptborn Horror | Creature | Horror | Trample
Cryptborn Horror enters the battlefield with X +1/+1 counters on it, where X is the total life lost by your opponents this turn. | Richard Wright

Abrupt Decay | Instant | | This spell can't be countered.
Destroy target nonland permanent with mana value 3 or less. | Svetlin Velinov

Corpsejack Menace | Creature | Fungus | If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead. | Chris Rahn

Jarad's Orders | Sorcery | | Search your library for up to two creature cards and reveal them. Put one into your hand and the other into your graveyard. Then shuffle. | Svetlin Velinov

Lotleth Troll | Creature | Zombie Troll | Trample
Discard a creature card: Put a +1/+1 counter on Lotleth Troll.
{B}: Regenerate Lotleth Troll. | Vincent Proce

Deathrite Shaman | Creature | Elf Shaman | {T}: Exile target land card from a graveyard. Add one mana of any color.
{B}, {T}: Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life.
{G}, {T}: Exile target creature card from a graveyard. You gain 2 life. | Steve Argyle

Chromatic Lantern | Artifact | | Lands you control have "{T}: Add one mana of any color."
{T}: Add one mana of any color. | Jung Park
2.0 LSV

Pithing Needle | Artifact | | As Pithing Needle enters the battlefield, choose a card name.
Activated abilities of sources with the chosen name can't be activated unless they're mana abilities. | Anthony Palumbo

Volatile Rig | Artifact Creature | Construct | Trample
Volatile Rig attacks each combat if able.
Whenever Volatile Rig is dealt damage, flip a coin. If you lose the flip, sacrifice Volatile Rig.
When Volatile Rig dies, flip a coin. If you lose the flip, it deals 4 damage to each creature and each player. | Mathias Kollros

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. | Vincent Proce

Grove of the Guardian | Land | | {T}: Add {C}.
{3}{G}{W}, {T}, Tap two untapped creatures you control, Sacrifice Grove of the Guardian: Create an 8/8 green and white Elemental creature token with vigilance. | Christine Choi

Hallowed Fountain | Land | Plains Island | ({T}: Add {W} or {U}.)
As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. | Jung Park

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. | Steven Belledin

Steam Vents | Land | Island Mountain | ({T}: Add {U} or {R}.)
As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. | Yeong-Hao Han

Temple Garden | Land | Forest Plains | ({T}: Add {G} or {W}.)
As Temple Garden enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. | Volkan Baǵa