Skywinder Drake

Flying
This creature can block only creatures with flying.

Air Elemental

Water Servant

{U}: This creature gets +1/-1 until end of turn.
{U}: This creature gets -1/+1 until end of turn.

Have

Void Stalker

{2}{U}, {T}: Put this creature and target creature on top of their owners' libraries, then those players shuffle their libraries.

Aven Fleetwing

Flying
Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Merfolk of the Pearl Trident

Thornwind Faeries

Flying
{T}: This creature deals 1 damage to any target.

Scroll Thief

Whenever this creature deals combat damage to a player, draw a card.

Man-o'-War

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

Outrider of Jhess

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Wonder

Flying
As long as this card is in your graveyard and you control an Island, creatures you control have flying.

Wanderguard Sentry

When this creature enters, look at target opponent's hand.

Wandering Ones

Cathartic Adept

Elite Arcanist

When this creature enters, you may exile an instant card from your hand.
{X}, {T}: Copy the exiled card. You may cast the copy without paying its mana cost. X is the mana value of the exiled card.

Augury Owl

Flying
When this creature enters, scry 3. (Look at the top three cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Cloud Sprite

Flying (This creature can't be blocked except by creatures with flying or reach.)
This creature can block only creatures with flying.

Armored Cancrix

Seacoast Drake

Merfolk Mesmerist

Frostwind Invoker

Flying
{8}: Creatures you control gain flying until end of turn.

Wall of Air

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Kraken Hatchling

Stealer of Secrets

Air Servant

Flying
{2}{U}: Tap target creature with flying.

Trained Condor

Flying
Whenever this creature attacks, another target creature you control gains flying until end of turn.

Amphin Cutthroat

Surrakar Banisher

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

Djinn of Wishes

Flying
This creature enters with three wish counters on it.
{2}{U}{U}, Remove a wish counter from this creature: Reveal the top card of your library. You may play that card without paying its mana cost. If you don't, exile it.

Mindeye Drake

Flying
When this creature dies, target player mills five cards.

Sage Owl

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

Cloud Elemental

Fortress Crab

Aven Fisher

Flying (This creature can't be blocked except by creatures with flying or reach.)
When this creature dies, you may draw a card.

Body Double

You may have this creature enter as a copy of any creature card in a graveyard.

Illusionary Servant

Flying
When this creature becomes the target of a spell or ability, sacrifice it.

Aven Windreader

Flying (This creature can't be blocked except by creatures with flying or reach.)
{1}{U}: Target player reveals the top card of their library.

Merfolk Looter

Master Thief

When this creature enters, gain control of target artifact for as long as you control this creature.

Thieving Magpie

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever this creature deals damage to an opponent, draw a card.

Snapping Drake

Flying (This creature can't be blocked except by creatures with flying or reach.)

Watercourser

{U}: This creature gets +1/-1 until end of turn.

Merfolk Observer

When this creature enters, look at the top card of target player's library.

Messenger Drake

Flying
When this creature dies, draw a card.

Dream Thief

Flying
When this creature enters, draw a card if you've cast another blue spell this turn.