Keeneye Aven

Flying
Cycling (, Discard this card: Draw a card.)

Dark Hatchling

Flying
When Dark Hatchling enters the battlefield, destroy target nonblack creature. It can’t be regenerated.

Scourge of the Throne

Flying
Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)
Whenever Scourge of the Throne attacks for the first time each turn, if it’s attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase.

Sea Drake

Flying
When Sea Drake enters the battlefield, return two target lands you control to their owner’s hand.

Mistmoon Griffin

Flying
When Mistmoon Griffin dies, exile Mistmoon Griffin, then return the top creature card of your graveyard to the battlefield.

Worldgorger Dragon

Flying, trample
When Worldgorger Dragon enters the battlefield, exile all other permanents you control.
When Worldgorger Dragon leaves the battlefield, return the exiled cards to the battlefield under their owners’ control.

Eternal Dragon

Flying
: Return Eternal Dragon from your graveyard to your hand. Activate this ability only during your upkeep.
Plainscycling (, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle your library.)

Cloud of Faeries

Flying
When Cloud of Faeries enters the battlefield, untap up to two lands.
Cycling (, Discard this card: Draw a card.)

Basandra, Battle Seraph

Flying
Players can’t cast spells during combat.
: Target creature attacks this turn if able.

Owl Familiar

Flying
When Owl Familiar enters the battlefield, draw a card, then discard a card.

Ephemeron

Flying
Discard a card: Return Ephemeron to its owner’s hand.

Radiant, Archangel

Flying, vigilance
Radiant, Archangel gets +1/+1 for each other creature with flying on the battlefield.

Blazing Specter

Flying, haste
Whenever Blazing Specter deals combat damage to a player, that player discards a card.

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.

Thopter Squadron

Flying
Thopter Squadron enters the battlefield with three +1/+1 counters on it.
, Remove a +1/+1 counter from Thopter Squadron: Create a 1/1 colorless Thopter artifact creature token with flying. Activate this ability only any time you could cast a sorcery.
, Sacrifice another Thopter: Put a +1/+1 counter on Thopter Squadron. Activate this ability only any time you could cast a sorcery.

Gustcloak Harrier

Flying
Whenever Gustcloak Harrier becomes blocked, you may untap it and remove it from combat.

Fledgling Djinn

Flying
At the beginning of your upkeep, Fledgling Djinn deals 1 damage to you.

Tradewind Rider

Flying
, Tap two untapped creatures you control: Return target permanent to its owner’s hand.

Baleful Strix

Flying, deathtouch
When Baleful Strix enters the battlefield, draw a card.

Brago, King Eternal

Flying
Whenever Brago, King Eternal deals combat damage to a player, exile any number of target nonland permanents you control, then return those cards to the battlefield under their owner’s control.

Skywing Aven

Flying
Discard a card: Return Skywing Aven to its owner’s hand.

Cloud Djinn

Flying
Cloud Djinn can block only creatures with flying.