Serra's Guardian

Flying (This creature can't be blocked except by creatures with flying or reach.)
Vigilance (Attacking doesn't cause this creature to tap.)
Other creatures you control have vigilance.

Drown in Shapelessness

Return target creature to its owner's hand.

Jubilant Skybonder

Flying
Creatures you control with flying have "Spells your opponents cast that target this creature cost {2} more to cast."

Mu Yanling, Celestial Wind

+1: Until your next turn, up to one target creature gets -5/-0.
−3: Return up to two target creatures to their owners' hands.
−7: Creatures you control with flying get +5/+5 until end of turn.

Aerial Assault

Destroy target tapped creature. You gain 1 life for each creature you control with flying.

Brilliant Plan

The Raven's Warning

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create a 1/1 blue Bird creature token with flying. You gain 2 life.
II — Whenever one or more creatures you control with flying deal combat damage to a player this turn, look at that player's hand and draw a card.
III — You may put a card you own from outside the game on top of your library.

Meandering River

This land enters tapped.
{T}: Add {W} or {U}.

Archetype of Imagination

Creatures you control have flying.
Creatures your opponents control lose flying and can't have or gain flying.

Seraph of Dawn

Plains

Rally of Wings

Untap all creatures you control. Creatures you control with flying get +2/+2 until end of turn.

Settle the Wreckage

Exile all attacking creatures target player controls. That player may search their library for that many basic land cards, put those cards onto the battlefield tapped, then shuffle.

Celestial Messenger

Flash (You may cast this card any time you could cast an instant.)
Flying
This creature gets +1/+1 as long as you control a Yanling planeswalker.

Serendib Efreet

Flying
At the beginning of your upkeep, this creature deals 1 damage to you.

Windreader Sphinx

Flying
Whenever a creature with flying attacks, you may draw a card.

Yanling's Harbinger

Flying
When this creature enters, you may search your library and/or graveyard for a card named Mu Yanling, Celestial Wind, reveal it, and put it into your hand. If you search your library this way, shuffle.

Dragon's Presence

Dragon's Presence deals 5 damage to target attacking or blocking creature.

Kangee, Sky Warden

Flying, vigilance
Whenever Kangee 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.

Lofty Denial

Counter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead.

Island

Serra the Benevolent

+2: Creatures you control with flying get +1/+1 until end of turn.
−3: Create a 4/4 white Angel creature token with flying and vigilance.
−6: You get an emblem with "If you control a creature, damage that would reduce your life total to less than 1 reduces it to 1 instead."

Winged Words

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Dungeon Geists

Flying
When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature.

Warden of Evos Isle

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

Stormcloud Spirit

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