As an additional cost to cast this spell, sacrifice a blue permanent.
Counter target spell.
{1}
Altar of the Brood
Artifact
Whenever another permanent enters the battlefield under your control, each opponent mills a card.
{1}{U}{U}
Ambassador Laquatus
Legendary Creature - Merfolk Wizard
{3}: Target player mills three cards.
1 /
3
{2}
Anvil of Bogardan
Artifact
Players have no maximum hand size.
At the beginning of each player's draw step, that player draws an additional card, then discards a card.
{1}{U}
Arcane Denial
Instant
Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.
{2}{U}{U}
Archaeomancer
Creature - Human Wizard
When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.
1 /
2
{3}{U}{U}
Archive Trap
Instant - Trap
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.
{U}{U}{U}
Archmage's Charm
Instant
Choose one --
• Counter target spell.
• Target player draws two cards.
• Gain control of target nonland permanent with mana value 1 or less.
{2}{U}
Back to Basics
Enchantment
Nonbasic lands don't untap during their controllers' untap steps.
{2}
Blade of Selves
Artifact - Equipment
Equipped creature has myriad. (Whenever it attacks, for each opponent other than defending player, you may create a token that's a copy of that creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)
Equip {4}
{3}{U}
Bond of Insight
Sorcery
Each player mills four cards. Return up to two instant and/or sorcery cards from your graveyard to your hand. Exile Bond of Insight.
--
Boseiju, Who Shelters All
Legendary Land
Boseiju, Who Shelters All enters the battlefield tapped.
{T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell can't be countered.
{1}{U}
Brain Freeze
Instant
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}{U}
Bruvac the Grandiloquent
Legendary Creature - Human Advisor
If an opponent would mill one or more cards, they mill twice that many cards instead. (To mill a card, a player puts the top card of their library into their graveyard.)
1 /
4
--
Castle Vantress
Land
Castle Vantress enters the battlefield tapped unless you control an Island.
{T}: Add {U}.
{2}{U}{U}, {T}: Scry 2.
--
Command Beacon
Land
{T}: Add {C}.
{T}, Sacrifice Command Beacon: Put your commander into your hand from the command zone.
{1}{U}
Compelling Argument
Sorcery
Target player mills five cards.
Cycling {U} ({U}, Discard this card: Draw a card.)
{2}{U}{U}
Countermand
Instant
Counter target spell. Its controller mills four cards.
{U}{U}
Counterspell
Instant
Counter target spell.
{3}
Crawlspace
Artifact
No more than two creatures can attack you each combat.
{1}{U}{U}{U}
Cryptic Command
Instant
Choose two --
• Counter target spell.
• Return target permanent to its owner's hand.
• Tap all creatures your opponents control.
• Draw a card.
{2}{U}
Curse of the Bloody Tome
Enchantment - Aura Curse
Enchant player
At the beginning of enchanted player's upkeep, that player mills two cards.
{1}{U}
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 "target" in its text to "each.")
{2}{U}
Deny the Divine
Instant
Counter target creature or enchantment spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
{1}{U}{U}
Didn't Say Please
Instant
Counter target spell. Its controller mills three cards.
{2}{U}{U}
Dissipation Field
Enchantment
Whenever a permanent deals damage to you, return it to its owner's hand.
{3}{U}
Dreadwaters
Sorcery
Target player mills X cards, where X is the number of lands you control.
{U}
Dream Twist
Instant
Target player mills three cards.
Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{2}{U}{U}
Dreamborn Muse
Creature - Spirit
At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand.
2 /
2
{1}{U}
Drowned Secrets
Enchantment
Whenever you cast a blue spell, target player mills two cards.
{U}
Drowner Initiate
Creature - Merfolk Wizard
Whenever a player casts a blue spell, you may pay {1}. If you do, target player mills two cards.
1 /
1
{3}{U}
Engulf the Shore
Instant
Return to their owners' hands all creatures with toughness less than or equal to the number of Islands you control.
{3}
Extraplanar Lens
Artifact
Imprint -- When Extraplanar Lens enters the battlefield, you may exile target land you control.
Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.
{3}{U}
Fact or Fiction
Instant
Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.
{2}{U}
Fierce Guardianship
Instant
If you control a commander, you may cast this spell without paying its mana cost.
Counter target noncreature spell.
{5}{U}{U}
Fleet Swallower
Creature - Fish
Whenever Fleet Swallower attacks, target player mills half their library, rounded up.
6 /
6
{1}{U}
Folio of Fancies
Artifact
Players have no maximum hand size.
{X}{X}, {T}: Each player draws X cards.
{2}{U}, {T}: Each opponent mills cards equal to the number of cards in their hand.
{1}{U}{U}
Force of Negation
Instant
If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost.
Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
{2}{U}
Fraying Sanity
Enchantment - Aura Curse
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.
{3}{U}
Frozen Aether
Enchantment
Artifacts, creatures, and lands your opponents control enter the battlefield tapped.
--
Geier Reach Sanitarium
Legendary Land
{T}: Add {C}.
{2}, {T}: Each player draws a card, then discards a card.
Persist (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.)
2 /
2
{1}
Grindstone
Artifact
{3}, {T}: Target player mills two cards. If two cards that share a color were milled this way, repeat this process.
{U}
Hedron Crab
Creature - Crab
Landfall -- Whenever a land enters the battlefield under your control, target player mills three cards.
0 /
2
{4}
Helm of the Host
Legendary Artifact - Equipment
At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary. That token gains haste.
Equip {5}
{3}
Herald's Horn
Artifact
As Herald's Horn enters the battlefield, choose a creature type.
Creature spells you cast of the chosen type cost {1} less to cast.
At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.
{U}
High Tide
Instant
Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.
--
Homeward Path
Land
{T}: Add {C}.
{T}: Each player gains control of all creatures they own.
{2}
Howling Mine
Artifact
At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.
{1}{U}
Iceberg Cancrix
Snow Creature - Crab
Whenever another snow permanent enters the battlefield under your control, you may have target player mill two cards.
0 /
4
{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}{U}
Imprisoned in the Moon
Enchantment - Aura
Enchant creature, land, or planeswalker
Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.
{X}{U}
Increasing Confusion
Sorcery
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.)
--
Ipnu Rivulet
Land - Desert
{T}: Add {C}.
{T}, Pay 1 life: Add {U}.
{1}{U}, {T}, Sacrifice a Desert: Target player mills four cards.
--
Isolated Watchtower
Land
{T}: Add {C}.
{2}, {T}: Scry 1, then you may reveal the top card of your library. If a basic land card is revealed this way, put it onto the battlefield tapped. Activate only if an opponent controls at least two more lands than you.
{1}{U}{U}
Jace's Archivist
Creature - Vedalken Wizard
{U}, {T}: Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.
2 /
2
{U}
Jace's Phantasm
Creature - Illusion
Flying
Jace's Phantasm gets +4/+4 as long as an opponent has ten or more cards in their graveyard.
1 /
1
{3}{U}{U}
Jace, Memory Adept
Legendary Planeswalker - Jace
+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.
L:
4
{8}{U}{U}
Jin-Gitaxias, Core Augur
Legendary Creature - Phyrexian Praetor
Flash
At the beginning of your end step, draw seven cards.
Each opponent's maximum hand size is reduced by seven.
5 /
4
{3}
Kefnet's Monument
Legendary Artifact
Blue creature spells you cast cost {1} less to cast.
Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step.
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{U}{U}
Mana Drain
Instant
Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
{1}{U}
Mana Leak
Instant
Counter target spell unless its controller pays {3}.
{1}{U}
Manic Scribe
Creature - Human Wizard
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.
0 /
3
--
Maze of Ith
Land
{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.
{1}{U}{U}
Memory Erosion
Enchantment
Whenever an opponent casts a spell, that player mills two cards.
{1}{U}
Merchant Scroll
Sorcery
Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.
{1}{U}
Mind Sculpt
Sorcery
Target opponent mills seven cards.
{2}
Mindcrank
Artifact
Whenever an opponent loses life, that player mills that many cards. (Damage causes loss of life.)
--
Myriad Landscape
Land
Myriad Landscape enters the battlefield tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.
--
Mystic Sanctuary
Land - Island
({T}: Add {U}.)
Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands.
When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.
{U}
Mystical Tutor
Instant
Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.
{1}{U}
Negate
Instant
Counter target noncreature spell.
--
Nykthos, Shrine to Nyx
Legendary Land
{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.)
{4}
Nyx Lotus
Legendary Artifact
Nyx Lotus enters the battlefield tapped.
{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.)
{U}
Overwhelmed Apprentice
Creature - Human Wizard
When Overwhelmed Apprentice enters the battlefield, each opponent mills two cards. Then you scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
1 /
2
{0}
Pact of Negation
Instant
Counter target spell.
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{1}{U}
Persistent Petitioners
Creature - Human Advisor
{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.
1 /
3
{U}
Ponder
Sorcery
Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.
{U}
Pongify
Instant
Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.
{2}{U}
Propaganda
Enchantment
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
{2}{U}
Psychic Corrosion
Enchantment
Whenever you draw a card, each opponent mills two cards.
{4}{U}
Psychic Spiral
Instant
Shuffle all cards from your graveyard into your library. Target player mills that many cards.
{U}
Rapid Hybridization
Instant
Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.
{U}{U}
Redirect
Instant
You may choose new targets for target spell.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
{2}{U}
Rhystic Study
Enchantment
Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.
{2}{U}
Riddlekeeper
Creature - Homunculus
Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards.
1 /
4
{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.
{2}{U}{U}
Rite of Replication
Sorcery
Kicker {5} (You may pay an additional {5} as you cast this spell.)
Create a token that's a copy of target creature. If this spell was kicked, create five of those tokens instead.
{U}{U}{U}
Sanity Grinding
Sorcery
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.
{2}
Sapphire Medallion
Artifact
Blue spells you cast cost {1} less to cast.
--
Scavenger Grounds
Land - Desert
{T}: Add {C}.
{2}, {T}, Sacrifice a Desert: Exile all graveyards.
{1}
Sensei's Divining Top
Artifact
{1}: Look at the top three cards of your library, then put them back in any order.
{T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.
{1}{U}
Shriekgeist
Creature - Spirit
Flying
Whenever Shriekgeist deals combat damage to a player, that player mills two cards.
1 /
1
{4}
Silent Arbiter
Artifact Creature - Construct
No more than one creature can attack each combat.
No more than one creature can block each combat.
1 /
5
{1}{U}
Snapcaster Mage
Creature - Human Wizard
Flash
When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)
2 /
1
--
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 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 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 Island
Basic Snow Land - Island
({T}: Add {U}.)
--
Snow-Covered Island
Basic Snow Land - Island
({T}: Add {U}.)
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{2}{U}
Spellseeker
Creature - Human Wizard
When Spellseeker enters the battlefield, you may search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle.
1 /
1
{2}{U}
Sphinx's Tutelage
Enchantment
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.
{2}{U}{U}
Startled Awake
Sorcery
Target opponent mills thirteen cards.
{3}{U}{U}: Put Startled Awake from your graveyard onto the battlefield transformed. Activate only as a sorcery.
--
Persistent Nightmare
Creature - Nightmare
Skulk (This creature can't be blocked by creatures with greater power.)
When Persistent Nightmare deals combat damage to a player, return it to its owner's hand.
{U}
Stern Dismissal
Instant
Return target creature or enchantment an opponent controls to its owner's hand.
{U}
Stifle
Instant
Counter target activated or triggered ability. (Mana abilities can't be targeted.)
{3}{U}{U}
Stitcher Geralf
Legendary Creature - Human Wizard
{2}{U}, {T}: Each player mills three cards. Exile up to two creature cards put into graveyards this way. Create an X/X blue Zombie creature token, where X is the total power of the cards exiled this way.
3 /
4
{U}
Stream of Thought
Sorcery
Target player mills four cards. You shuffle up to four cards from your graveyard into your library.
Replicate {2}{U}{U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
{2}
Strionic Resonator
Artifact
{2}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words "when," "whenever," or "at.")
{U}
Swan Song
Instant
Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.
{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}
Sword of Body and Mind
Artifact - Equipment
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}
{1}{U}
Tale's End
Instant
Counter target activated ability, triggered ability, or legendary spell.
{2}{U}
Teferi's Tutelage
Enchantment
When Teferi's Tutelage enters the battlefield, draw a card, then discard a card.
Whenever you draw a card, target opponent mills two cards. (They put the top two cards of their library into their graveyard.)
{3}
Temple Bell
Artifact
{T}: Each player draws a card.
{6}{U}{U}{U}
The Magic Mirror
Legendary Artifact
This spell costs {1} less to cast for each instant and sorcery card in your graveyard.
You have no maximum hand size.
At the beginning of your upkeep, put a knowledge counter on The Magic Mirror, then draw a card for each knowledge counter on The Magic Mirror.
{1}{U}{U}
Thought Collapse
Instant
Counter target spell. Its controller mills three cards.
{U}
Thought Scour
Instant
Target player mills two cards.
Draw a card.
{2}
Thought Vessel
Artifact
You have no maximum hand size.
{T}: Add {C}.
{3}
Thousand-Year Elixir
Artifact
You may activate abilities of creatures you control as though those creatures had haste.
{1}, {T}: Untap target creature.
{5}
Thrumming Stone
Legendary Artifact
Spells you cast have ripple 4. (Whenever you cast a spell, you may reveal the top four cards of your library. You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs. Put the rest on the bottom of your library.)