Nyxborn Seaguard

Enchantment Creature — Merfolk Soldier (2/5)

Stinging Lionfish

Enchantment Creature — Fish (2/1)

Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent.

Wavebreak Hippocamp

Enchantment Creature — Horse Fish (2/2)

Whenever you cast your first spell during each opponent's turn, draw a card.

Cartouche of Knowledge

Enchantment — Aura Cartouche

Enchant creature you control
When Cartouche of Knowledge enters the battlefield, draw a card.
Enchanted creature gets +1/+1 and has flying.

Fae Flight

Enchantment — Aura

Flash
Enchant creature
When Fae Flight enters the battlefield, enchanted creature gains hexproof until end of turn.
Enchanted creature gets +1/+0 and has flying.

Ghostly Wings

Enchantment — Aura

Enchant creature
Enchanted creature gets +1/+1 and has flying.
Discard a card: Return enchanted creature to its owner's hand.

Jeskai Runemark

Enchantment — Aura

Enchant creature
Enchanted creature gets +2/+2.
Enchanted creature has flying as long as you control a red or white permanent.

One With the Wind

Enchantment — Aura

Enchant creature
Enchanted creature gets +2/+2 and has flying.

Rousing Read

Enchantment — Aura

Enchant creature
When Rousing Read enters the battlefield, draw two cards, then discard a card.
Enchanted creature gets +1/+1 and has flying.

Smoke Shroud

Enchantment — Aura

Enchant creature
Enchanted creature gets +1/+1 and has flying.
When a Ninja enters the battlefield under your control, you may return Smoke Shroud from your graveyard to the battlefield attached to that creature.

Soar

Enchantment — Aura

You may cast Soar as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step.
Enchant creature
Enchanted creature gets +0/+1 and has flying.

Spectral Flight

Enchantment — Aura

Enchant creature
Enchanted creature gets +2/+2 and has flying.

Take Flight

Enchantment — Aura

Enchant creature
Enchanted creature gets +1/+0 and has flying and "Whenever this creature attacks, draw a card."

Vow of Flight

Enchantment — Aura

Enchant creature
Enchanted creature gets +2/+2, has flying, and can't attack you or planeswalkers you control.

Zephid's Embrace

Enchantment — Aura

Enchant creature
Enchanted creature gets +2/+2 and has flying and shroud. (It can't be the target of spells or abilities.)

Herald of Torment

Enchantment Creature — Demon (3/3)

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
At the beginning of your upkeep, you lose 1 life.
Enchanted creature gets +3/+3 and has flying.

Hypnotic Siren

Enchantment Creature — Siren (1/1)

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
You control enchanted creature.
Enchanted creature gets +1/+1 and has flying.

Secretkeeper

Creature — Spirit (2/2)

As long as you have more cards in hand than each opponent, Secretkeeper gets +2/+2 and has flying.

Dorothea, Vengeful Victim // Dorothea's Retribution

Legendary Creature — Spirit // Enchantment — Aura (4/4)

Flying
When Dorothea, Vengeful Victim attacks or blocks, sacrifice it at end of combat.
Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Dorothea's Retribution

Enchant creature
Enchanted creature has "Whenever this creature attacks, create a 4/4 white Spirit creature token with flying that's tapped and attacking. Sacrifice that token at end of combat."
If Dorothea's Retribution would be put into a graveyard from anywhere, exile it instead.

Aeronaut Tinkerer

Creature — Human Artificer (2/3)

Aeronaut Tinkerer has flying as long as you control an artifact. (It can't be blocked except by creatures with flying or reach.)