Island

Kira, Great Glass-Spinner

Flying
Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."

Keen Glidemaster

{2}{U}: Target creature gains flying until end of turn.

Thriving Isle

Thriving Isle enters tapped. As it enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.

Windstorm Drake

Flying
Other creatures you control with flying get +1/+0.

Roaming Ghostlight

Flying
When Roaming Ghostlight enters, return up to one target non-Spirit creature to its owner's hand.

Spectral Sailor

Flash (You may cast this spell any time you could cast an instant.)
Flying
{3}{U}: Draw a card.

Above the Clouds

Winged Words

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Mistral Singer

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Lofty Denial

Counter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead.

Soaring Seacliff

Soaring Seacliff enters tapped.
When Soaring Seacliff enters, target creature gains flying until end of turn.
{T}: Add {U}.

Favorable Winds

Creatures you control with flying get +1/+1.

Talrand's Invocation

Create two 2/2 blue Drake creature tokens with flying.

Warden of Evos Isle

Flying
Creature spells with flying you cast cost {1} less to cast.

Tide Skimmer

Flying
Whenever you attack with two or more creatures with flying, draw a card.

Unsubstantiate

Return target spell or creature to its owner's hand.

Capture Sphere

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Frost Breath

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

Windreader Sphinx

Flying
Whenever a creature with flying attacks, you may draw a card.

Gust of Wind

This spell costs {2} less to cast if you control a creature with flying.
Return target nonland permanent you don't control to its owner's hand.
Draw a card.

Inniaz, the Gale Force

Flying
{2}{W/U}: Attacking creatures with flying get +1/+1 until end of turn. ({W/U} can be paid with either {W} or {U}.)
Whenever three or more creatures you control with flying attack, each player gains control of a nonland permanent of your choice controlled by the player to their right.