Defender (This creature can't attack.) Flying When Ageless Sentinels blocks, it becomes a Bird Giant, and it loses defender. (It's no longer a Wall. This effect lasts indefinitely.)

Flying Other Bird creatures get +1/+1. Other Soldier creatures get +1/+1.

Flash Flying If an opponent would search a library, that player searches the top four cards of that library instead.

Flying {T}: Add one mana of any color.

Flying, protection from creatures

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

Flying When Gilded Goose enters the battlefield, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") {1}{G}, {T}: Create a Food token. {T}, Sacrifice a Food: Add one mana of any color.

Flying High Sentinels of Arashin gets +1/+1 for each other creature you control with a +1/+1 counter on it. {3}{W}: Put a +1/+1 counter on target creature.

Flying Morph {1}{G}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Icefeather Aven is turned face up, you may return another target creature to its owner's hand.

Flying Whenever an opponent casts a spell, put a +1/+1 counter on Ishai, Ojutai Dragonspeaker. Partner (You can have two commanders if both have partner.)

Flying Whenever Kangee's Lieutenant attacks, attacking creatures with flying get +1/+1 until end of turn. Encore {5}{W} ({5}{W}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Kicker {X}{2} (You may pay an additional {X}{2} as you cast this spell.) Flying When Kangee, Aerie Keeper enters the battlefield, if it was kicked, put X feather counters on it. Other Bird creatures get +1/+1 for each feather counter on Kangee, Aerie Keeper.

Flying, vigilance Whenever Kangee, Sky Warden attacks, attacking creatures with flying get +2/+0 until end of turn. Whenever Kangee blocks, blocking creatures with flying get +0/+2 until end of turn.

Flying {T}, Tap two untapped Birds you control: Return target permanent to its owner's hand.

Flash Flying Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.) When you cycle Nimble Obstructionist, counter target activated or triggered ability you don't control.

Flying Skycat Sovereign gets +1/+1 for each other creature you control with flying. {2}{W}{U}: Create a 1/1 white Cat Bird creature token with flying.

Bird creatures get +1/+1. {1}{W}: Target Bird creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Flying Whenever Steel-Plume Marshal attacks, other attacking creatures you control with flying get +2/+2 until end of turn.

Flying

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

Draw a card for each Bird on the battlefield.

Create two 1/1 blue Bird creature tokens with flying. Take an extra turn after this one. Exile Alrund's Epiphany. Foretell {4}{U}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Create four 1/1 white Bird creature tokens with flying. Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)