Sharding Sphinx

Flying
Whenever an artifact creature you control deals combat damage to a player, you may create a 1/1 blue Thopter artifact creature token with flying.

Wingsteed Rider

Flying
Heroic — Whenever you cast a spell that targets Wingsteed Rider, put a +1/+1 counter on Wingsteed Rider.

Medomai the Ageless

Flying
Whenever Medomai the Ageless deals combat damage to a player, take an extra turn after this one.
Medomai the Ageless can’t attack during extra turns.

Cavalry Pegasus

Flying
Whenever Cavalry Pegasus attacks, each attacking Human gains flying until end of turn.

Setessan Griffin

Flying
: Setessan Griffin gets +2/+2 until end of turn. Activate this ability only once each turn.

Horizon Chimera

Flash
Flying, trample
Whenever you draw a card, you gain 1 life.

Prognostic Sphinx

Flying
Discard a card: Prognostic Sphinx gains hexproof until end of turn. Tap it.
Whenever Prognostic Sphinx attacks, 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.)

Spellheart Chimera

Flying, trample
Spellheart Chimera’s power is equal to the number of instant and sorcery cards in your graveyard.

Anvilwrought Raptor

Flying
First strike (This creature deals combat damage before creatures without first strike.)

Shipwreck Singer

Flying
: Target creature an opponent controls attacks this turn if able.
, : Attacking creatures get -1/-1 until end of turn.

Celestial Archon

Bestow (If you cast this card for its bestow cost, it’s an Aura spell with enchant creature. It becomes a creature again if it’s not attached to a creature.)
Flying, first strike
Enchanted creature gets +4/+4 and has flying and first strike.

Vaporkin

Flying
Vaporkin can block only creatures with flying.

Abhorrent Overlord

Flying
When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)
At the beginning of your upkeep, sacrifice a creature.

Nimbus Naiad

Bestow (If you cast this card for its bestow cost, it’s an Aura spell with enchant creature. It becomes a creature again if it’s not attached to a creature.)
Flying
Enchanted creature gets +2/+2 and has flying.

Stormbreath Dragon

Flying, haste, protection from white
: Monstrosity 3. (If this creature isn’t monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Stormbreath Dragon becomes monstrous, it deals damage to each opponent equal to the number of cards in that player’s hand.

Horizon Scholar

Flying
When Horizon Scholar enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Coastline Chimera

Flying
: Coastline Chimera can block an additional creature this turn.

Blood-Toll Harpy

Flying
When Blood-Toll Harpy enters the battlefield, each player loses 1 life.

Ashen Rider

Flying
When Ashen Rider enters the battlefield or dies, exile target permanent.

Decorated Griffin

Flying
: Prevent the next 1 combat damage that would be dealt to you this turn.

Prescient Chimera

Flying
Whenever you cast an instant or sorcery spell, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Abhorrent Overlord

Flying
When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)
At the beginning of your upkeep, sacrifice a creature.

Celestial Archon

Bestow (If you cast this card for its bestow cost, it’s an Aura spell with enchant creature. It becomes a creature again if it’s not attached to a creature.)
Flying, first strike
Enchanted creature gets +4/+4 and has flying and first strike.