Dimir Mill

Whenever another permanent enters the battlefield under your control, each opponent mills a card.

If an opponent searched their library this turn, you may pay {0} rather than pay this spell's mana cost.

Target opponent mills thirteen cards.

Spells and abilities your opponents control can't cause their controller to search their library.

[−1]: Target player mills four cards. Then exile each opponent's graveyard.

Bad River enters the battlefield tapped.

{T}, Sacrifice Bad River: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle your library.

Search target player's library for a card and exile it. Then that player shuffles their library.

Gravestorm (When you cast this spell, copy it for each permanent put into a graveyard this turn. You may choose new targets for the copies.)

Target player mills three cards.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add {C}.

{3}, {T}: Add {B} for each basic Swamp you control.

As Choked Estuary enters the battlefield, you may reveal an Island or Swamp card from your hand. If you don't, Choked Estuary enters the battlefield tapped.

{T}: Add {U} or {B}.

Target player mills five cards.

Cycling {U} ({U}, Discard this card: Draw a card.)

Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards.

Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Counter target spell. Its controller mills four cards.

{4}, {T}: Target opponent loses 2 life, gets a poison counter, then mills six cards.

Destroy target land. Its controller reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

{1}, {T}: Add {U}{B}.

Each player mills X cards. For each creature card put into a graveyard this way, you create a tapped 2/2 black Zombie creature token.

Target player mills X cards, where X is the number of lands you control.

At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand.

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.

{T}: Add {U} or {B}.

Whenever you cast a blue spell, target player mills two cards.

({T}: Add {U} or {B}.)

Fetid Pools enters the battlefield tapped.

Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever Fleet Swallower attacks, target player mills half their library, rounded up.

Enchant player

At the beginning of each end step, enchanted player mills X cards, where X is the number of cards put into their graveyard from anywhere this turn.

Target player mills ten cards.

{T}: Put a charge counter on Grindclock.

{T}: Target player mills X cards, where X is the number of charge counters on Grindclock.

{T}, Sacrifice an artifact: Target player mills three cards.

Whenever an artifact enters the battlefield, you may untap Grinding Station.

{3}, {T}: Target player mills two cards. If two cards that share a color were milled this way, repeat this process.

Destroy target nonartifact creature. Its controller mills cards equal to that creature's power.

Landfall — Whenever a land enters the battlefield under your control, target player mills three cards.

Target player mills X cards. If this spell was cast from a graveyard, that player mills twice that many cards instead.

Flashback {X}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counter target spell. If {B} was spent to cast this spell, that spell's controller mills X cards, where X is the spell's converted mana cost.

({T}: Add {U}.)

[+2]: Each player draws a card.

[−1]: Target player draws a card.

[−10]: Target player mills twenty cards.

Whenever you draw a card, you may have target player mill a card.

Flying

When Jace's Mindseeker enters the battlefield, target opponent mills five cards. You may cast an instant or sorcery spell from among them without paying its mana cost.

[+1]: Draw a card. Target player mills a card.

[0]: Target player mills ten cards.

[−7]: Any number of target players each draw twenty cards.

{5}, {T}: Target player mills X cards, where X is the number of cards in that player's graveyard.

Destroy all creatures, then search target opponent's library for up to three creature cards and put them into their graveyard. Then that player shuffles their library.

When Manic Scribe enters the battlefield, each opponent mills three cards.

Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, that player mills three cards.

Whenever an opponent casts a spell, that player mills two cards.

Target player mills four cards.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Whenever a permanent becomes untapped, that permanent's controller mills a card.

Target opponent reveals cards from the top of their library until four land cards are revealed. That player puts all cards revealed this way into their graveyard.

Each opponent reveals cards from the top of their library until they reveal X land cards, then puts all cards revealed this way into their graveyard. X can't be 0.

Target opponent mills seven cards.

Whenever an opponent loses life, that player mills that many cards. (Damage dealt by sources without infect causes loss of life.)

Flying

Whenever Mirko Vosk, Mind Drinker deals combat damage to a player, that player reveals cards from the top of their library until they reveal four land cards, then puts those cards into their graveyard.

Whenever Nemesis of Reason attacks, defending player mills ten cards.

{T}: Add {C}.

{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

At the beginning of your upkeep, target opponent mills three cards, then you draw a card for each land card put into their graveyard this way.

{1}, {T}: Target player mills a card.

Tap four untapped Advisors you control: Target player mills twelve cards.

A deck can have any number of cards named Persistent Petitioners.

Indestructible

As long as your devotion to blue and black is less than seven, Phenax isn't a creature.

Creatures you control have "{T}: Target player mills X cards, where X is this creature's toughness."

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle your library.

Whenever you draw a card, each opponent mills two cards.

Target player mills X cards and you gain X life.

Shuffle all cards from your graveyard into your library. Target player mills that many cards.

{X}, {T}: Target player mills X cards.

Chroma — Reveal the top ten cards of your library. For each blue mana symbol in the mana costs of the revealed cards, target opponent mills a card. Then put the cards you revealed this way on the bottom of your library in any order.

{T}: Add {C}{C}.

Whenever you draw a card, target opponent mills two cards. If two nonland cards that share a color were milled this way, repeat this process.

{5}{U}: Draw a card, then discard a card.

Target opponent mills thirteen cards.

{3}{U}{U}: Put Startled Awake from your graveyard onto the battlefield transformed. Activate this ability only any time you could cast a sorcery.

({T}: Add {U} or {B}.)

Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {B}.)

Equipped creature gets +2/+2 and has protection from green and from blue.

Whenever equipped creature deals combat damage to a player, you create a 2/2 green Wolf creature token and that player mills ten cards.

Equip {2}

Flying

If Szadek, Lord of Secrets would deal combat damage to a player, instead put that many +1/+1 counters on Szadek and that player mills that many cards.

Target opponent reveals the top seven cards of their library. You may cast an instant or sorcery spell from among them without paying its mana cost. Then that player puts the rest into their graveyard.

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, you may cast up to two instant and/or sorcery spells from among the revealed cards instead of one.

Target player mills five cards.

Target player mills half their library, rounded down.

Whenever equipped creature attacks, defending player reveals cards from the top of their library until they reveal a land card. The creature gets +1/+0 until end of turn for each card revealed this way. That player puts the revealed cards into their graveyard.

Equip {2}

When you cast this spell, exile two target permanents.

Indestructible

Whenever Ulamog, the Ceaseless Hunger attacks, defending player exiles the top twenty cards of their library.

Each land is a Swamp in addition to its other land types.

({T}: Add {U} or {B}.)

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Worn Powerstone enters the battlefield tapped.

{T}: Add {C}{C}.