Creatures your opponents control lose flying and can't have or gain flying.
3 /
2
{1}{U}
Augury Owl
Creature - Bird
Flying
When Augury Owl enters the battlefield, scry 3. (Look at the top three 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 /
1
{1}{U}
Augury Owl
Creature - Bird
Flying
When Augury Owl enters the battlefield, scry 3. (Look at the top three 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 /
1
{1}{U}
Augury Owl
Creature - Bird
Flying
When Augury Owl enters the battlefield, scry 3. (Look at the top three 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 /
1
{2}{U}{U}
Bident of Thassa
Legendary Enchantment Artifact
Whenever a creature you control deals combat damage to a player, you may draw a card.
{1}{U}, {T}: Creatures your opponents control attack this turn if able.
{1}{U}
Cloud of Faeries
Creature - Faerie
Flying
When Cloud of Faeries enters the battlefield, untap up to two lands.
Cycling {2} ({2}, Discard this card: Draw a card.)
1 /
1
{1}{U}
Cloud of Faeries
Creature - Faerie
Flying
When Cloud of Faeries enters the battlefield, untap up to two lands.
Cycling {2} ({2}, Discard this card: Draw a card.)
1 /
1
{U}
Curiosity
Enchantment - Aura
Enchant creature
Whenever enchanted creature deals damage to an opponent, you may draw a card.
{U}
Curiosity
Enchantment - Aura
Enchant creature
Whenever enchanted creature deals damage to an opponent, you may draw a card.
{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}
Divination
Sorcery
Draw two cards.
{2}{U}
Divination
Sorcery
Draw two cards.
{1}{U}
Favorable Winds
Enchantment
Creatures you control with flying get +1/+1.
{1}{U}
Favorable Winds
Enchantment
Creatures you control with flying get +1/+1.
{1}{U}
Favorable Winds
Enchantment
Creatures you control with flying get +1/+1.
{5}{U}
Flow of Ideas
Sorcery
Draw a card for each Island you control.
{1}{U}
Fog Bank
Creature - Wall
Defender, flying
Prevent all combat damage that would be dealt to and dealt by Fog Bank.
0 /
2
{1}{U}
Fog Bank
Creature - Wall
Defender, flying
Prevent all combat damage that would be dealt to and dealt by Fog Bank.
0 /
2
{1}{U}
Fog Bank
Creature - Wall
Defender, flying
Prevent all combat damage that would be dealt to and dealt by Fog Bank.
0 /
2
{1}{U}
Fog Bank
Creature - Wall
Defender, flying
Prevent all combat damage that would be dealt to and dealt by Fog Bank.
0 /
2
{3}{U}{U}
Gravitational Shift
Enchantment
Creatures with flying get +2/+0.
Creatures without flying get -2/-0.
{3}{U}{U}
Gravitational Shift
Enchantment
Creatures with flying get +2/+0.
Creatures without flying get -2/-0.
{3}{U}{U}
Icefall Regent
Creature - Dragon
Flying
When Icefall Regent enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Icefall Regent.
Spells your opponents cast that target Icefall Regent cost {2} more to cast.
4 /
3
{3}{U}{U}
Icefall Regent
Creature - Dragon
Flying
When Icefall Regent enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Icefall Regent.
Spells your opponents cast that target Icefall Regent cost {2} more to cast.
4 /
3
{2}{U}
Illusory Angel
Creature - Angel Illusion
Cast this spell only if you've cast another spell this turn.
Flying
4 /
4
--
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
{4}{U}
Mulldrifter
Creature - Elemental
Flying
When Mulldrifter enters the battlefield, draw two cards.
Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)
2 /
2
{4}{U}
Mulldrifter
Creature - Elemental
Flying
When Mulldrifter enters the battlefield, draw two cards.
Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)
2 /
2
{4}{U}
Mulldrifter
Creature - Elemental
Flying
When Mulldrifter enters the battlefield, draw two cards.
Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)
2 /
2
{U}
Retraced Image
Sorcery
Reveal a card in your hand, then put that card onto the battlefield if it has the same name as a permanent.
{3}{U}{U}{U}
Roil Elemental
Creature - Elemental
Flying
Landfall -- Whenever a land enters the battlefield under your control, you may gain control of target creature for as long as you control Roil Elemental.
3 /
2
{2}{U}{U}
Sleep
Sorcery
Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.
{2}{U}{U}
Sleep
Sorcery
Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.
{5}{U}{U}
Sphinx of Uthuun
Creature - Sphinx
Flying
When Sphinx of Uthuun enters the battlefield, 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.
5 /
6
{1}{U}{U}
Thornwind Faeries
Creature - Faerie
Flying
{T}: Thornwind Faeries deals 1 damage to any target.
1 /
1
{1}{U}{U}
Thornwind Faeries
Creature - Faerie
Flying
{T}: Thornwind Faeries deals 1 damage to any target.
1 /
1
{1}{U}{U}
Wall of Frost
Creature - Wall
Defender
Whenever Wall of Frost blocks a creature, that creature doesn't untap during its controller's next untap step.
0 /
7
{1}{U}{U}
Wall of Frost
Creature - Wall
Defender
Whenever Wall of Frost blocks a creature, that creature doesn't untap during its controller's next untap step.
0 /
7
{2}{U}
Warden of Evos Isle
Creature - Bird Wizard
Flying
Creature spells with flying you cast cost {1} less to cast.
2 /
2
{2}{U}
Warden of Evos Isle
Creature - Bird Wizard
Flying
Creature spells with flying you cast cost {1} less to cast.
2 /
2
{5}{U}{U}
Windreader Sphinx
Creature - Sphinx
Flying
Whenever a creature with flying attacks, you may draw a card.
3 /
7
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{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
{5}{U}{U}{U}
Stormtide Leviathan
Creature - Leviathan
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
All lands are Islands in addition to their other types.
Creatures without flying or islandwalk can't attack.