Lonely Sandbar

This land enters tapped.
{T}: Add {U}.
Cycling {U} ({U}, Discard this card: Draw a card.)

Douse

Merfolk Looter

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Cephalid Coliseum

{T}: Add {U}. This land deals 1 damage to you.
Threshold — {U}, {T}, Sacrifice this land: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Think Tank

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Dream Cache

Draw three cards, then put two cards from your hand both on top of your library or both on the bottom of your library.

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Sisay's Ring

Spire Owl

Flying
When this creature enters, look at the top four cards of your library, then put them back in any order.

Insight

Whenever an opponent casts a green spell, you draw a card.

High Tide

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Hunting Drake

Flying
When this creature enters, put target red or green creature on top of its owner's library.

Iridescent Drake

Flying
When this creature enters, put target Aura card from a graveyard onto the battlefield under your control attached to this creature.

Horseshoe Crab

Clone

You may have this creature enter as a copy of any creature on the battlefield.

Control Magic

Enchant creature
You control enchanted creature.

Vodalian Mystic

{T}: Target instant or sorcery spell becomes the color of your choice.

Counterspell

Rebuild

Return all artifacts to their owners' hands.
Cycling {2} ({2}, Discard this card: Draw a card.)

Words of Wisdom

You draw two cards, then each other player draws a card.

Unstable Shapeshifter

Whenever another creature enters, this creature becomes a copy of that creature, except it has this ability.

Jaded Response

Counter target spell if it shares a color with a creature you control.

Sky Diamond

This artifact enters tapped.
{T}: Add {U}.

Tidal Kraken

Hibernation

Return all green permanents to their owners' hands.

Magical Hack

Change the text of target spell or permanent by replacing all instances of one basic land type with another. (For example, you may change "swampwalk" to "plainswalk." This effect lasts indefinitely.)

Prismatic Lace

Target permanent becomes the color or colors of your choice. (This effect lasts indefinitely.)

Mana Prism

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Drain Power

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Sea Scryer

Cephalid Broker

{T}: Target player draws two cards, then discards two cards.

Island

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Sisay's Ingenuity

Enchant creature
When this Aura enters, draw a card.
Enchanted creature has "{2}{U}: Target creature becomes the color of your choice until end of turn."

Essence Leak

Enchant permanent
As long as enchanted permanent is red or green, it has "At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost."

Echo Chamber

{4}, {T}: An opponent chooses target creature they control. Create a token that's a copy of that creature. That token gains haste until end of turn. Exile the token at the beginning of the next end step. Activate only as a sorcery.

Keep Watch

Ether Well

Put target creature on top of its owner's library. If that creature is red, you may put it on the bottom of its owner's library instead.

Sleight of Mind

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Homarid Shaman

False Demise

Enchant creature
When enchanted creature dies, return that card to the battlefield under your control.

Cephalid Looter

{T}: Target player draws a card, then discards a card.

Tormod's Crypt

{T}, Sacrifice this artifact: Exile target player's graveyard.

Deep Analysis

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Fylamarid

Flying
This creature can't be blocked by blue creatures.
{U}: Target creature becomes blue until end of turn.

Mind's Desire

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Metathran Transport

Sway of Illusion

Any number of target creatures become the color of your choice until end of turn.
Draw a card.

Eye of Ramos

{T}: Add {U}.
Sacrifice this artifact: Add {U}.

Wash Out

Return all permanents of the color of your choice to their owners' hands.

Mind Bend

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Tidal Visionary

{T}: Target creature becomes the color of your choice until end of turn.

Llawan, Cephalid Empress

When Llawan enters, return all blue creatures your opponents control to their owners' hands.
Your opponents can't cast blue creature spells.

King Crab

{1}{U}, {T}: Put target green creature on top of its owner's library.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Gainsay

Flash Flood

Choose one —
• Destroy target red permanent.
• Return target Mountain to its owner's hand.

Zephid's Embrace

Enchant creature
Enchanted creature gets +2/+2 and has flying and shroud. (It can't be the target of spells or abilities.)

Thoughtlace

Target spell or permanent becomes blue. (Mana symbols on that permanent remain unchanged.)

Shrieking Drake

Flying
When this creature enters, return a creature you control to its owner's hand.

Millikin

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Aboshan's Desire

Enchant creature
Enchanted creature has flying.
Threshold — Enchanted creature has shroud as long as seven or more cards are in your graveyard. (It can't be the target of spells or abilities.)

Mana Maze

Players can't cast spells that share a color with the spell most recently cast this turn.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Academy Researchers

When this creature enters, you may put an Aura card from your hand onto the battlefield attached to this creature.

Distorting Lens

{T}: Target permanent becomes the color of your choice until end of turn.

Star Compass

This artifact enters tapped.
{T}: Add one mana of any color that a basic land you control could produce.

Legerdemain

Exchange control of target artifact or creature and another target permanent that shares one of those types with it. (This effect lasts indefinitely.)

Déjà Vu

Return target sorcery card from your graveyard to your hand.

Blind Seer

{1}{U}: Target spell or permanent becomes the color of your choice until end of turn.

Man-o'-War

When this creature enters, return target creature to its owner's hand.

Frantic Search

Draw two cards, then discard two cards. Untap up to three lands.

Remote Isle

This land enters tapped.
{T}: Add {U}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Coral Atoll

This land enters tapped.
When this land enters, sacrifice it unless you return an untapped Island you control to its owner's hand.
{T}: Add {C}{U}.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Confiscate

Enchant permanent
You control enchanted permanent.

Worn Powerstone

This artifact enters tapped.
{T}: Add {C}{C}.

Chameleon Spirit

As this creature enters, choose a color.
Chameleon Spirit's power and toughness are each equal to the number of permanents of the chosen color your opponents control.

Mind Harness

Enchant red or green creature
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
You control enchanted creature.

Keeper of the Mind

{U}, {T}: Choose target opponent who has at least two more cards in hand than you do as you activate this ability. Draw a card.

Propaganda

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Opportunity

Alter Reality

Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)
Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Stern Proctor

When this creature enters, return target artifact or enchantment to its owner's hand.

Floodgate

Defender
When this creature has flying, sacrifice it.
When this creature leaves the battlefield, it deals damage to each nonblue creature without flying equal to half the number of Islands you control, rounded down.

Diplomatic Immunity

Enchant creature
Shroud (A permanent with shroud can't be the target of spells or abilities.)
Enchanted creature has shroud.

Shifting Sky

As this enchantment enters, choose a color.
All nonland permanents are the chosen color.