Enchanted creature can block only creatures with flying.
{1}{U}
Alexi's Cloak
Enchantment - Aura
Flash
Enchant creature
Enchanted creature has shroud. (It can't be the target of spells or abilities.)
{1}{U}{U}
Apprentice Wizard
Creature - Human Wizard
{U}, {T}: Add {C}{C}{C}.
0 /
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.)
{U}
Arcane Flight
Enchantment - Aura
Enchant creature
Enchanted creature gets +1/+1 and has flying.
{3}{U}{U}{U}
Arcanis the Omnipotent
Legendary Creature - Wizard
{T}: Draw three cards.
{2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.
3 /
4
{3}{U}{U}{U}
Atemsis, All-Seeing
Legendary Creature - Sphinx
Flying
{2}{U}, {T}: Draw two cards, then discard a card.
Whenever Atemsis, All-Seeing deals damage to an opponent, you may reveal your hand. If cards with at least six different mana values are revealed this way, that player loses the game.
4 /
5
{U}
Aven Envoy
Creature - Bird Soldier
Flying
0 /
2
{U}
Brainstorm
Instant
Draw three cards, then put two cards from your hand on top of your library in any order.
{1}{U}{U}{ // }{1}{U}
Brazen Borrower // Petty Theft
Creature - Faerie Rogue // Instant - Adventure
Flash
Flying
Brazen Borrower can block only creatures with flying.
Return target nonland permanent an opponent controls to its owner's hand.
3 /
1
{1}{U}{U}
Calcite Snapper
Creature - Turtle
Shroud (This creature can't be the target of spells or abilities.)
Landfall -- Whenever a land enters the battlefield under your control, you may switch Calcite Snapper's power and toughness until end of turn.
1 /
4
{1}{U}{U}
Callaphe, Beloved of the Sea
Legendary Enchantment Creature - Demigod
Callaphe's power is equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
Creatures and enchantments you control have "Spells your opponents cast that target this permanent cost {1} more to cast."
* /
3
{2}{U}{U}
Charix, the Raging Isle
Legendary Creature - Leviathan Crab
Spells your opponents cast that target Charix, the Raging Isle cost {2} more to cast.
{3}: Charix gets +X/-X until end of turn, where X is the number of Islands you control.
0 /
17
{2}{U}
Clear the Mind
Sorcery
Target player shuffles their graveyard into their library.
Draw a card.
{1}{U}
Consuming Vortex
Instant - Arcane
Return target creature to its owner's hand.
Splice onto Arcane {3}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
{U}{U}
Counterspell
Instant
Counter target spell.
{U}
Diminish
Instant
Target creature has base power and toughness 1/1 until end of turn.
{U}
Drifter il-Dal
Creature - Human Wizard
Shadow (This creature can block or be blocked by only creatures with shadow.)
At the beginning of your upkeep, sacrifice Drifter il-Dal unless you pay {U}.
2 /
1
{2}{U}
Dulcet Sirens
Creature - Siren
{U}, {T}: Target creature attacks target opponent this turn if able.
Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
1 /
3
{3}{U}
Elgaud Shieldmate
Creature - Human Soldier
Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)
As long as Elgaud Shieldmate is paired with another creature, both creatures have hexproof. (They can't be the targets of spells or abilities your opponents control.)
2 /
3
{U}
Flight
Enchantment - Aura
Enchant creature
Enchanted creature has flying.
{3}{U}
Foresee
Sorcery
Scry 4, then draw two cards.
{X}{U}{U}{U}
Gadwick, the Wizened
Legendary Creature - Human Wizard
When Gadwick, the Wizened enters the battlefield, draw X cards.
Whenever you cast a blue spell, tap target nonland permanent an opponent controls.
3 /
3
{2}{U}
Galvanic Alchemist
Creature - Human Wizard
Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)
As long as Galvanic Alchemist is paired with another creature, each of those creatures has "{2}{U}: Untap this creature."
1 /
4
{1}{U}
Glimmerbell
Creature - Elemental Jellyfish
Flying
{1}{U}: Untap Glimmerbell.
1 /
3
{3}{U}{U}
Guardian of Tazeem
Creature - Sphinx
Flying
Landfall -- Whenever a land enters the battlefield under your control, tap target creature an opponent controls. If that land is an Island, that creature doesn't untap during its controller's next untap step.
4 /
5
{2}{U}
Horseshoe Crab
Creature - Crab
{U}: Untap Horseshoe Crab.
1 /
3
{2}{U}
Illusory Angel
Creature - Angel Illusion
Cast this spell only if you've cast another spell this turn.
Flying
4 /
4
{1}{U}
Ior Ruin Expedition
Enchantment
Landfall -- Whenever a land enters the battlefield under your control, you may put a quest counter on Ior Ruin Expedition.
Remove three quest counters from Ior Ruin Expedition and sacrifice it: Draw two cards.
--
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}.)
--
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}.)
--
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}.)
--
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}.)
--
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}.)
--
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}.)
{5}{U}
Keiga, the Tide Star
Legendary Creature - Dragon Spirit
Flying
When Keiga, the Tide Star dies, gain control of target creature.
5 /
5
{5}{U}{U}
Kraken of the Straits
Creature - Kraken
Creatures with power less than the number of Islands you control can't block Kraken of the Straits.
6 /
6
{3}{U}
Learn from the Past
Instant
Target player shuffles their graveyard into their library.
Draw a card.
{4}{U}
Meloku the Clouded Mirror
Legendary Creature - Moonfolk Wizard
Flying
{1}, Return a land you control to its owner's hand: Create a 1/1 blue Illusion creature token with flying.
2 /
4
{3}{U}
Paragon of Gathering Mists
Creature - Human Wizard
Other blue creatures you control get +1/+1.
{U}, {T}: Another target blue creature you control gains flying until end of turn.
2 /
2
{U}
Pongify
Instant
Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.
{5}{U}{U}
Pursued Whale
Creature - Whale
When Pursued Whale enters the battlefield, each opponent creates a 1/1 red Pirate creature token with "This creature can't block" and "Creatures you control attack each combat if able."
Spells your opponents cast that target Pursued Whale cost {3} more to cast.
8 /
8
{4}{U}{U}
Reality Strobe
Sorcery
Return target permanent to its owner's hand. Exile Reality Strobe with three time counters on it.
Suspend 3--{2}{U} (Rather than cast this card from your hand, you may pay {2}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)
{2}{U}
Retreat to Coralhelm
Enchantment
Landfall -- Whenever a land enters the battlefield under your control, choose one --
• You may tap or untap target creature.
• Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{U}
Ruin Crab
Creature - Crab
Landfall -- Whenever a land enters the battlefield under your control, each opponent mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)
0 /
3
{4}{U}
Serpent of the Endless Sea
Creature - Serpent
Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control.
Serpent of the Endless Sea can't attack unless defending player controls an Island.
* /
*
{U}
Shimmering Wings
Enchantment - Aura
Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
Enchanted creature has flying. (It can't be blocked except by creatures with flying or reach.)
{U}: Return Shimmering Wings to its owner's hand.
{1}{U}
Skyclave Squid
Creature - Squid
Defender
Landfall -- Whenever a land enters the battlefield under your control, Skyclave Squid can attack this turn as though it didn't have defender.
3 /
2
{3}{U}
Soratami Mindsweeper
Creature - Moonfolk Wizard
Flying
{2}, Return a land you control to its owner's hand: Target player mills two cards.
1 /
4
{3}{U}
Soratami Mirror-Guard
Creature - Moonfolk Wizard
Flying
{2}, Return a land you control to its owner's hand: Target creature with power 2 or less can't be blocked this turn.
3 /
1
{3}{U}
Soratami Mirror-Mage
Creature - Moonfolk Wizard
Flying
{3}, Return three lands you control to their owner's hand: Return target creature to its owner's hand.
2 /
1
{2}{U}
Soratami Rainshaper
Creature - Moonfolk Wizard
Flying
{3}, Return a land you control to its owner's hand: Target creature you control gains shroud until end of turn. (It can't be the target of spells or abilities.)
2 /
1
{2}{U}{U}
Soratami Savant
Creature - Moonfolk Wizard
Flying
{3}, Return a land you control to its owner's hand: Counter target spell unless its controller pays {3}.
2 /
2
{4}{U}
Soratami Seer
Creature - Moonfolk Wizard
Flying
{4}, Return two lands you control to their owner's hand: Discard all the cards in your hand, then draw that many cards.
2 /
3
{5}{U}
Wave-Wing Elemental
Creature - Elemental
Flying
Landfall -- Whenever a land enters the battlefield under your control, Wave-Wing Elemental gets +2/+2 until end of turn.
3 /
4
{3}{U}
Windrider Eel
Creature - Fish
Flying
Landfall -- Whenever a land enters the battlefield under your control, Windrider Eel gets +2/+2 until end of turn.