Storm Crow

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

Fallen Angel

Flying
Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Avatar of Hope

If you have 3 or less life, this spell costs less to cast.
Flying
Avatar of Hope can block any number of creatures.

Abyssal Specter

Flying
Whenever Abyssal Specter deals damage to a player, that player discards a card.

Fallen Angel

Flying
Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Serra Angel

Flying
Vigilance (Attacking doesn’t cause this creature to tap.)

Dermoplasm

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.)
When Dermoplasm is turned face up, you may put a creature card with a morph ability from your hand onto the battlefield face up. If you do, return Dermoplasm to its owner’s hand.

Kilnmouth Dragon

Amplify 3 (As this creature enters, put three +1/+1 counters on it for each Dragon card you reveal in your hand.)
Flying
: Kilnmouth Dragon deals damage equal to the number of +1/+1 counters on it to any target.

Aven Warhawk

Amplify 1 (As this creature enters, put a +1/+1 counter on it for each Bird and/or Soldier card you reveal in your hand.)
Flying

Celestial Gatekeeper

Flying
When Celestial Gatekeeper dies, exile it, then return up to two target Bird and/or Cleric permanent cards from your graveyard to the battlefield.

Sootfeather Flock

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.)

Keeneye Aven

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

Havoc Demon

Flying
When Havoc Demon dies, all creatures get -5/-5 until end of turn.

Mistform Wakecaster

Flying
: Mistform Wakecaster becomes the creature type of your choice until end of turn.
, : Choose a creature type. Each creature you control becomes that type until end of turn.

Swooping Talon

Flying
: Swooping Talon loses flying until end of turn.
Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.)

Mistform Seaswift

Flying
: Mistform Seaswift becomes the creature type of your choice until end of turn.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Imperial Hellkite

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.)
When Imperial Hellkite is turned face up, you may search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

Wingbeat Warrior

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.)
When Wingbeat Warrior is turned face up, target creature gains first strike until end of turn.