As an additional cost to cast this spell, discard X cards.
Look at target opponent's hand and choose X cards from it. That player discards those cards.
{3}{U}{U}
Alrund, God of the Cosmos
Legendary Creature - God
Alrund gets +1/+1 for each card in your hand and each foretold card you own in exile.
At the beginning of your end step, choose a card type, then reveal the top two cards of your library. Put all cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.
1 /
1
--
Hakka, Whispering Raven
Legendary Creature - Bird
Flying
Whenever Hakka, Whispering Raven deals combat damage to a player, return it to its owner's hand, then scry 2.
1 /
1
{U}
Aqueous Form
Enchantment - Aura
Enchant creature
Enchanted creature can't be blocked.
Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{2}{U}{B}
Architects of Will
Artifact Creature - Human Wizard
When Architects of Will enters the battlefield, look at the top three cards of target player's library, then put them back in any order.
Cycling {U/B} ({U/B}, Discard this card: Draw a card.)
3 /
3
{2}{U}{B}
Atris, Oracle of Half-Truths
Legendary Creature - Human Advisor
Menace
When Atris, Oracle of Half-Truths enters the battlefield, target opponent looks at the top three cards of your library and separates them into a face-down pile and a face-up pile. Put one pile into your hand and the other into your graveyard.
3 /
2
{U}{B}
Baleful Strix
Artifact Creature - Bird
Flying, deathtouch
When Baleful Strix enters the battlefield, draw a card.
1 /
1
{1}{U}{B}
Bane Alley Broker
Creature - Human Rogue
{T}: Draw a card, then exile a card from your hand face down.
You may look at cards exiled with Bane Alley Broker.
{U}{B}, {T}: Return a card exiled with Bane Alley Broker to its owner's hand.
0 /
3
{2}{U}{B}
Blizzard Specter
Snow Creature - Specter
Flying
Whenever Blizzard Specter deals combat damage to a player, choose one --
• That player returns a permanent they control to its owner's hand.
• That player discards a card.
2 /
3
{2}{U}{B}
Breathstealer's Crypt
Enchantment
If a player would draw a card, instead they draw a card and reveal it. If it's a creature card, that player discards it unless they pay 3 life.
{1}{B}
Brine Shaman
Creature - Human Cleric Shaman
{T}, Sacrifice a creature: Target creature gets +2/+2 until end of turn.
{1}{U}{U}, Sacrifice a creature: Counter target creature spell.
1 /
1
{1}{U/B}{U/B}
Cemetery Puca
Creature - Shapeshifter
Whenever a creature dies, you may pay {1}. If you do, Cemetery Puca becomes a copy of that creature, except it has this ability.
1 /
2
{U}{U}{U}
Charisma
Enchantment - Aura
Enchant creature
Whenever enchanted creature deals damage to a creature, gain control of the other creature for as long as Charisma remains on the battlefield.
{2}{U}{B}
Circu, Dimir Lobotomist
Legendary Creature - Human Wizard
Whenever you cast a blue spell, exile the top card of target player's library.
Whenever you cast a black spell, exile the top card of target player's library.
Your opponents can't cast spells with the same name as a card exiled with Circu, Dimir Lobotomist.
2 /
3
{1}{U}{U}{B}
Clutch of the Undercity
Instant
Return target permanent to its owner's hand. Its controller loses 3 life.
Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
{1}{U}{ // }{4}{B}
Consign // Oblivion
Instant // Sorcery
Return target nonland permanent to its owner's hand.
Aftermath (Cast this spell only from your graveyard. Then exile it.)
Target opponent discards two cards.
{3}{U}{B}
Consuming Aberration
Creature - Horror
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.
* /
*
{U}{U}
Counterspell
Instant
Counter target spell.
{2}{B}
Cunning Rhetoric
Enchantment
Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.
--
Darkwater Catacombs
Land
{1}, {T}: Add {U}{B}.
{1}
Darkwater Egg
Artifact
{2}, {T}, Sacrifice Darkwater Egg: Add {U}{B}. Draw a card.
{1}{U}
Depart the Realm
Instant
Return target nonland permanent to its owner's hand.
Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
{4}{B}
Destroy the Evidence
Sorcery
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.
--
Dimir Aqueduct
Land
Dimir Aqueduct enters the battlefield tapped.
When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{B}.
{U}{B}
Dimir Charm
Instant
Choose one --
• Counter target sorcery spell.
• Destroy target creature with power 2 or less.
• Look at the top three cards of target player's library. Put one back and the rest into that player's graveyard.
{3}
Dimir Cluestone
Artifact
{T}: Add {U} or {B}.
{U}{B}, {T}, Sacrifice Dimir Cluestone: Draw a card.
{1}{U}{B}
Dimir Doppelganger
Creature - Shapeshifter
{1}{U}{B}: Exile target creature card from a graveyard. Dimir Doppelganger becomes a copy of that card, except it has this ability.
0 /
2
--
Dimir Guildgate
Land - Gate
Dimir Guildgate enters the battlefield tapped.
{T}: Add {U} or {B}.
{3}
Dimir Keyrune
Artifact
{T}: Add {U} or {B}.
{U}{B}: Dimir Keyrune becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.
{2}
Dimir Signet
Artifact
{1}, {T}: Add {U}{B}.
{U}{B}
Disciple of Deceit
Creature - Human Rogue
Inspired -- Whenever Disciple of Deceit becomes untapped, you may discard a nonland card. If you do, search your library for a card with the same mana value as that card, reveal it, put it into your hand, then shuffle.
1 /
3
--
Dismal Backwater
Land
Dismal Backwater enters the battlefield tapped.
When Dismal Backwater enters the battlefield, you gain 1 life.
{T}: Add {U} or {B}.
{2}{U}
Divination
Sorcery
Draw two cards.
{2}{U}{B}
Doomsday Specter
Creature - Specter
Flying
When Doomsday Specter enters the battlefield, return a blue or black creature you control to its owner's hand.
Whenever Doomsday Specter deals combat damage to a player, look at that player's hand and choose a card from it. The player discards that card.
2 /
3
{U/B}
Dream Salvage
Instant
Draw cards equal to the number of cards target opponent discarded this turn.
{U}{B}
Drown in the Loch
Instant
Choose one --
• Counter target spell with mana value less than or equal to the number of cards in its controller's graveyard.
• Destroy target creature with mana value less than or equal to the number of cards in its controller's graveyard.
{2}{U}{B}
Duskmantle Seer
Creature - Vampire Wizard
Flying
At the beginning of your upkeep, each player reveals the top card of their library, loses life equal to that card's mana value, then puts it into their hand.
4 /
4
--
Duskmantle, House of Shadow
Land
{T}: Add {C}.
{U}{B}, {T}: Target player mills a card.
{2}{B}{B}
Elusive Tormentor
Creature - Vampire Wizard
{1}, Discard a card: Transform Elusive Tormentor.
4 /
4
--
Insidious Mist
Creature - Elemental
Hexproof, indestructible
Insidious Mist can't block and can't be blocked.
Whenever Insidious Mist attacks and isn't blocked, you may pay {2}{B}. If you do, transform it.
4 /
4
{3}{B}
Fell Specter
Creature - Specter
Flying
When Fell Specter enters the battlefield, target opponent discards a card.
Whenever an opponent discards a card, that player loses 2 life.
1 /
3
{3}{U}
Forgotten Creation
Creature - Zombie Horror
Skulk (This creature can't be blocked by creatures with greater power.)
At the beginning of your upkeep, you may discard all the cards in your hand. If you do, draw that many cards.
3 /
3
{2}{U}{U}{U}
Future Sight
Enchantment
Play with the top card of your library revealed.
You may play lands and cast spells from the top of your library.
{U/B}{U/B}{U/B}{U/B}{U/B}
Ghastlord of Fugue
Creature - Spirit Avatar
Ghastlord of Fugue can't be blocked.
Whenever Ghastlord of Fugue deals combat damage to a player, that player reveals their hand. You choose a card from it. That player exiles that card.
4 /
4
{1}{U}
Ghostly Pilferer
Creature - Spirit Rogue
Whenever Ghostly Pilferer becomes untapped, you may pay {2}. If you do, draw a card.
Whenever an opponent casts a spell from anywhere other than their hand, draw a card.
Discard a card: Ghostly Pilferer can't be blocked this turn.
2 /
1
--
Halimar Depths
Land
Halimar Depths enters the battlefield tapped.
When Halimar Depths enters the battlefield, look at the top three cards of your library, then put them back in any order.
{T}: Add {U}.
--
Ice Tunnel
Snow Land - Island Swamp
({T}: Add {U} or {B}.)
Ice Tunnel enters the battlefield tapped.
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{1}
Lantern of Insight
Artifact
Players play with the top card of their libraries revealed.
{T}, Sacrifice Lantern of Insight: Target player shuffles.
{2}{B}
Megrim
Enchantment
Whenever an opponent discards a card, Megrim deals 2 damage to that player.
{5}{U}{B}{B}
Mindleech Mass
Creature - Horror
Trample
Whenever Mindleech Mass deals combat damage to a player, you may look at that player's hand. If you do, you may cast a spell from among those cards without paying its mana cost.
6 /
6
{1}{U}
Mindshrieker
Creature - Spirit Bird
Flying
{2}: Target player mills a card. Mindshrieker gets +X/+X until end of turn, where X is the milled card's mana value.
1 /
1
{3}{U}{B}
Nebuchadnezzar
Legendary Creature - Human Wizard
{X}, {T}: Choose a card name. Target opponent reveals X cards at random from their hand. Then that player discards all cards with that name revealed this way. Activate only during your turn.
3 /
3
{1}{U}{B}
Obsessive Stitcher
Creature - Human Wizard
{T}: Draw a card, then discard a card.
{2}{U}{B}, {T}, Sacrifice Obsessive Stitcher: Return target creature card from your graveyard to the battlefield.
0 /
3
{U}
Opt
Instant
Scry 1.
Draw a card.
{3}{B}{B}
Painful Quandary
Enchantment
Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.
{U}
Peek
Instant
Look at target player's hand.
Draw a card.
{1}{U}{B}
Perplex
Instant
Counter target spell unless its controller discards their hand.
Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
{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.
--
Port of Karfell
Land
Port of Karfell enters the battlefield tapped.
{T}: Add {U}.
{3}{U}{B}{B}, {T}, Sacrifice Port of Karfell: Mill four cards, then return a creature card from your graveyard to the battlefield tapped. (To mill a card, put the top card of your library into your graveyard.)
{3}{U}{B}
Psychic Intrusion
Sorcery
Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.
{1}{U}{B}
Psychic Strike
Instant
Counter target spell. Its controller mills two cards.
{1}{U}{B}
Recoil
Instant
Return target permanent to its owner's hand. Then that player discards a card.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
--
Rhystic Cave
Land
{T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant.
{4}{U}{U}
Run Ashore
Instant
Choose one or both --
• The owner of target nonland permanent puts it on the top or bottom of their library.
• Return target nonland permanent to its owner's hand.
{2}{U}{B}
Seer's Vision
Enchantment
Your opponents play with their hands revealed.
Sacrifice Seer's Vision: Look at target player's hand and choose a card from it. That player discards that card. Activate only as a sorcery.
{U/B}{U/B}
Shadow of Doubt
Instant
({U/B} can be paid with either {U} or {B}.)
Players can't search libraries this turn.
Draw a card.
{2}{B}{B}
Shimian Specter
Creature - Specter
Flying
Whenever Shimian Specter deals combat damage to a player, that player reveals their hand. You choose a nonland card from it. Search that player's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles.
2 /
2
{B}
Shrieking Affliction
Enchantment
At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{1}{U}{B}
Soul Manipulation
Instant
Choose one or both --
• Counter target creature spell.
• Return target creature card from your graveyard to your hand.
{5}{U}{U}
Sphinx of the Final Word
Creature - Sphinx
This spell can't be countered.
Flying, hexproof
Instant and sorcery spells you control can't be countered.
5 /
5
{3}{U}{U}{B}
Spinal Embrace
Instant
Cast this spell only during combat.
Untap target creature you don't control and gain control of it. It gains haste until end of turn. At the beginning of the next end step, sacrifice it. If you do, you gain life equal to its toughness.
{4}{U}{U}
Supplant Form
Instant
Return target creature to its owner's hand. You create a token that's a copy of that creature.
--
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}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{3}{B}
Syphon Mind
Sorcery
Each other player discards a card. You draw a card for each card discarded this way.
{U}
Telepathy
Enchantment
Your opponents play with their hands revealed.
--
Temple of Deceit
Land
Temple of Deceit enters the battlefield tapped.
When Temple of Deceit enters the battlefield, scry 1.
{T}: Add {U} or {B}.
{4}{U}
The Mirari Conjecture
Enchantment - Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I -- Return target instant card from your graveyard to your hand.
II -- Return target sorcery card from your graveyard to your hand.
III -- Until end of turn, whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy.
{1}{U}{B}
Tomebound Lich
Creature - Zombie Wizard
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Whenever Tomebound Lich enters the battlefield or deals combat damage to a player, draw a card, then discard a card.
1 /
3
{U}{B}
Tyrant's Scorn
Instant
Choose one --
• Destroy target creature with mana value 3 or less.
• Return target creature to its owner's hand.
{2}{U}
Wandering Eye
Creature - Illusion
Flying
Players play with their hands revealed.
1 /
3
{1}{U}
Wharf Infiltrator
Creature - Human Horror
Skulk (This creature can't be blocked by creatures with greater power.)
Whenever Wharf Infiltrator deals combat damage to a player, you may draw a card. If you do, discard a card.
Whenever you discard a creature card, you may pay {2}. If you do, create a 3/2 colorless Eldrazi Horror creature token.
1 /
1
{3}{U}
Zur's Weirding
Enchantment
Players play with their hands revealed.
If a player would draw a card, they reveal it instead. Then any other player may pay 2 life. If a player does, put that card into its owner's graveyard. Otherwise, that player draws a card.