Vampire Bats

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Vampire Bats gets +1/+0 until end of turn. Activate no more than twice each turn.

Windborn Muse

Flying
Creatures can’t attack you unless their controller pays for each creature they control that’s attacking you.

Goblin Sky Raider

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

Thieving Magpie

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

Wall of Air

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

Ascendant Evincar

Flying (This creature can’t be blocked except by creatures with flying or reach.)
Other black creatures get +1/+1.
Nonblack creatures get -1/-1.

Hypnotic Specter

Flying
Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

Aven Fisher

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

Ascendant Evincar

Flying (This creature can’t be blocked except by creatures with flying or reach.)
Other black creatures get +1/+1.
Nonblack creatures get -1/-1.

Skyhunter Patrol

Flying, first strike (This creature can’t be blocked except by creatures with flying or reach, and it deals combat damage before creatures without first strike.)

Skyhunter Patrol

Flying, first strike (This creature can’t be blocked except by creatures with flying or reach, and it deals combat damage before creatures without first strike.)

Vampire Bats

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Vampire Bats gets +1/+0 until end of turn. Activate no more than twice each turn.

Aven Windreader

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

Thieving Magpie

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

Aven Fisher

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

Deepcavern Imp

Flying, haste
Echo—Discard a card. (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Narcomoeba

Flying
When Narcomoeba is put into your graveyard from your library, you may put it onto the battlefield.

Tarox Bladewing

Flying, haste
Grandeur — Discard another card named Tarox Bladewing: Tarox Bladewing gets +X/+X until end of turn, where X is its power.

Scourge of Kher Ridges

Flying
: Scourge of Kher Ridges deals 2 damage to each creature without flying.
: Scourge of Kher Ridges deals 6 damage to each other creature with flying.

Cloudseeder

Flying
, , Discard a card: Create a 1/1 blue Faerie creature token named Cloud Sprite. It has flying and “Cloud Sprite can block only creatures with flying.”

Whip-Spine Drake

Flying
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)