Whenever another permanent enters the battlefield under your control, each opponent mills a card.
{4}{R}
Anarchist
Creature - Human Wizard
When Anarchist enters the battlefield, you may return target sorcery card from your graveyard to your hand.
2 /
2
{1}{R}
Ashling's Prerogative
Enchantment
As Ashling's Prerogative enters the battlefield, choose odd or even. (Zero is even.)
Each creature with mana value of the chosen quality has haste.
Each creature without mana value of the chosen quality enters the battlefield tapped.
{1}
Bag of Holding
Artifact
Whenever you discard a card, exile that card from your graveyard.
{2}, {T}: Draw a card, then discard a card.
{4}, {T}, Sacrifice Bag of Holding: Return all cards exiled with Bag of Holding to their owner's hand.
--
Buried Ruin
Land
{T}: Add {C}.
{2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.
{X}{R}
By Force
Sorcery
Destroy X target artifacts.
{2}{R}{R}
Chain Reaction
Sorcery
Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.
{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
{3}{R}{R}
Confusion in the Ranks
Enchantment
Whenever an artifact, creature, or enchantment enters the battlefield, its controller chooses target permanent another player controls that shares a card type with it. Exchange control of those permanents.
{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.
{4}{R}{R}
Conquering Manticore
Creature - Manticore
Flying
When Conquering Manticore enters the battlefield, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.
5 /
5
{4}{R}
Crown-Hunter Hireling
Creature - Ogre Mercenary
When Crown-Hunter Hireling enters the battlefield, you become the monarch.
Crown-Hunter Hireling can't attack unless defending player is the monarch.
4 /
4
{3}
Crystal Chimes
Artifact
{3}, {T}, Sacrifice Crystal Chimes: Return all enchantment cards from your graveyard to your hand.
{2}
Decoction Module
Artifact
Whenever a creature enters the battlefield under your control, you get {E} (an energy counter).
{4}, {T}: Return target creature you control to its owner's hand.
{3}
Dragon Mask
Artifact
{3}, {T}: Target creature you control gets +2/+2 until end of turn. Return it to its owner's hand at the beginning of the next end step. (Return it only if it's on the battlefield.)
--
Dwarven Mine
Land - Mountain
({T}: Add {R}.)
Dwarven Mine enters the battlefield tapped unless you control three or more other Mountains.
When Dwarven Mine enters the battlefield untapped, create a 1/1 red Dwarf creature token.
{2}{R}
Electropotence
Enchantment
Whenever a creature enters the battlefield under your control, you may pay {2}{R}. If you do, that creature deals damage equal to its power to any target.
{3}{R}
Fanatic of Mogis
Creature - Minotaur Shaman
When Fanatic of Mogis enters the battlefield, it deals damage to each opponent equal to your devotion to red. (Each {R} in the mana costs of permanents you control counts toward your devotion to red.)
4 /
2
--
Field of Ruin
Land
{T}: Add {C}.
{2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.
{2}
Fire Diamond
Artifact
Fire Diamond enters the battlefield tapped.
{T}: Add {R}.
{3}{R}
Flameshadow Conjuring
Enchantment
Whenever a nontoken creature enters the battlefield under your control, you may pay {R}. If you do, create a token that's a copy of that creature. That token gains haste. Exile it at the beginning of the next end step.
{3}{R}
Flametongue Kavu
Creature - Kavu
When Flametongue Kavu enters the battlefield, it deals 4 damage to target creature.
4 /
2
{2}
Genesis Chamber
Artifact
Whenever a nontoken creature enters the battlefield, if Genesis Chamber is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.
{2}{R}
Ghirapur Gearcrafter
Creature - Human Artificer
When Ghirapur Gearcrafter enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying. (A creature with flying can't be blocked except by creatures with flying or reach.)
2 /
1
{4}
Hedron Archive
Artifact
{T}: Add {C}{C}.
{2}, {T}, Sacrifice Hedron Archive: Draw two cards.
{3}
Honor-Worn Shaku
Artifact
{T}: Add {C}.
Tap an untapped legendary permanent you control: Untap Honor-Worn Shaku.
{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
{1}{R}
Impact Tremors
Enchantment
Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.
{3}{R}{R}
Invader Parasite
Creature - Phyrexian Insect
Imprint -- When Invader Parasite enters the battlefield, exile target land.
Whenever a land with the same name as the exiled card enters the battlefield under an opponent's control, Invader Parasite deals 2 damage to that player.
3 /
2
{2}
Iron Myr
Artifact Creature - Myr
{T}: Add {R}.
1 /
1
{1}{R}
Loyal Apprentice
Creature - Human Artificer
Haste
Lieutenant -- At the beginning of combat on your turn, if you control your commander, create a 1/1 colorless Thopter artifact creature token with flying. That token gains haste until end of turn.
2 /
1
{7}
Meteor Golem
Artifact Creature - Golem
When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.
3 /
3
{2}
Mind Stone
Artifact
{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.
{4}{R}
Mindclaw Shaman
Creature - Viashino Shaman
When Mindclaw Shaman enters the battlefield, target opponent reveals their hand. You may cast an instant or sorcery spell from among those cards without paying its mana cost.
2 /
2
{5}
Minion Reflector
Artifact
Whenever a nontoken creature enters the battlefield under your control, you may pay {2}. If you do, create a token that's a copy of that creature, except it has haste and "At the beginning of the end step, sacrifice this permanent."
{5}{R}
Mirror March
Enchantment
Whenever a nontoken creature enters the battlefield under your control, flip a coin until you lose a flip. For each flip you won, create a token that's a copy of that creature. Those tokens gain haste. Exile them at the beginning of the next end step.
--
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}.)
--
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}.)
--
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}.)
--
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}.)
--
Mystifying Maze
Land
{T}: Add {C}.
{4}, {T}: Exile target attacking creature an opponent controls. At the beginning of the next end step, return it to the battlefield tapped under its owner's control.
{R}
Norin the Wary
Legendary Creature - Human Warrior
When a player casts a spell or a creature attacks, exile Norin the Wary. Return it to the battlefield under its owner's control at the beginning of the next end step.
2 /
1
{2}{R}{R}
Ogre Battledriver
Creature - Ogre Warrior
Whenever another creature enters the battlefield under your control, that creature gets +2/+0 and gains haste until end of turn. (It can attack and {T} this turn.)
3 /
3
{5}{R}
Oni of Wild Places
Creature - Demon Spirit
Haste
At the beginning of your upkeep, return a red creature you control to its owner's hand.
6 /
5
{3}{R}
Outpost Siege
Enchantment
As Outpost Siege enters the battlefield, choose Khans or Dragons.
• Khans -- At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card.
• Dragons -- Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.
{3}{R}
Pandemonium
Enchantment
Whenever a creature enters the battlefield, that creature's controller may have it deal damage equal to its power to any target of their choice.
{2}{R}
Pia Nalaar
Legendary Creature - Human Artificer
When Pia Nalaar enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.
{1}{R}: Target artifact creature gets +1/+0 until end of turn.
{1}, Sacrifice an artifact: Target creature can't block this turn.
2 /
2
{2}{R}{R}
Pia and Kiran Nalaar
Legendary Creature - Human Artificer
When Pia and Kiran Nalaar enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying.
{2}{R}, Sacrifice an artifact: Pia and Kiran Nalaar deals 2 damage to any target.
2 /
2
{3}
Pilgrim's Eye
Artifact Creature - Thopter
Flying
When Pilgrim's Eye enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
1 /
1
{2}
Plague Myr
Artifact Creature - Phyrexian Myr
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{T}: Add {C}.
1 /
1
{3}{R}{R}
Possibility Storm
Enchantment
Whenever a player casts a spell from their hand, that player exiles it, then exiles cards from the top of their library until they exile a card that shares a card type with it. That player may cast that card without paying its mana cost. Then they put all cards exiled with Possibility Storm on the bottom of their library in a random order.
{2}
Prismatic Lens
Artifact
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{1}{R}
Reckless Fireweaver
Creature - Human Artificer
Whenever an artifact enters the battlefield under your control, Reckless Fireweaver deals 1 damage to each opponent.
1 /
3
{3}
Skittering Surveyor
Artifact Creature - Construct
When Skittering Surveyor enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
1 /
2
{3}
Skyscanner
Artifact Creature - Thopter
Flying
When Skyscanner enters the battlefield, draw a card.
1 /
1
{5}{R}{R}
Spawn of Thraxes
Creature - Dragon
Flying
When Spawn of Thraxes enters the battlefield, it deals damage to any target equal to the number of Mountains you control.
5 /
5
{1}
Springleaf Drum
Artifact
{T}, Tap an untapped creature you control: Add one mana of any color.
{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.
{1}{R}
Stingscourger
Creature - Goblin Warrior
Echo {3}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Stingscourger enters the battlefield, return target creature an opponent controls to its owner's hand.
2 /
2
{2}{R}
Thopter Engineer
Creature - Human Artificer
When Thopter Engineer enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.
Artifact creatures you control have haste. (They can attack and {T} as soon as they come under your control.)
1 /
3
{1}{R}
Thrill of Possibility
Instant
As an additional cost to cast this spell, discard a card.
Draw two cards.
{4}
Trading Post
Artifact
{1}, {T}, Discard a card: You gain 4 life.
{1}, {T}, Pay 1 life: Create a 0/1 white Goat creature token.
{1}, {T}, Sacrifice a creature: Return target artifact card from your graveyard to your hand.
{1}, {T}, Sacrifice an artifact: Draw a card.
{3}{R}
Tuktuk Scrapper
Creature - Goblin Artificer Ally
Whenever Tuktuk Scrapper or another Ally enters the battlefield under your control, you may destroy target artifact. If that artifact is put into a graveyard this way, Tuktuk Scrapper deals damage to that artifact's controller equal to the number of Allies you control.
2 /
2
{1}{R}
Viashino Pyromancer
Creature - Viashino Wizard
When Viashino Pyromancer enters the battlefield, it deals 2 damage to target player or planeswalker.
2 /
1
{1}{R}{R}
Viashino Sandsprinter
Creature - Viashino Warrior
Trample, haste
At the beginning of the end step, return Viashino Sandsprinter to its owner's hand. (Return it only if it's on the battlefield.)
Cycling {R} ({R}, Discard this card: Draw a card.)
4 /
1
{1}{R}{R}
Viashino Sandstalker
Creature - Viashino Warrior
Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, return Viashino Sandstalker to its owner's hand. (Return it only if it's on the battlefield.)
4 /
2
{1}
Voyager Staff
Artifact
{2}, Sacrifice Voyager Staff: Exile target creature. Return the exiled card to the battlefield under its owner's control at the beginning of the next end step.
{5}{R}
Warstorm Surge
Enchantment
Whenever a creature enters the battlefield under your control, it deals damage equal to its power to any target.
{5}{R}
Whims of the Fates
Sorcery
Starting with you, each player separates all permanents they control into three piles. Then each player chooses one of their piles at random and sacrifices those permanents. (Piles can be empty.)
{5}{R}
Wild Evocation
Enchantment
At the beginning of each player's upkeep, that player reveals a card at random from their hand. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able.